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630 projects published for past 72 hours.
Job Title Budget
THREE JS Project Optimization
15 - 25 USD / hr
10 minutes ago
Client Rank - Excellent

Payment method verified
$35'646 total spent
32 hires , 1 active
2 open job
5.00 of 13 reviews
Registered at: 25/01/2013
DE Germany
Excellent
I'm looking for an experienced developer to enhance my existing 3D viewer built with React Three Fiber. Based on its current state, I estimate this will take 2-3 hours for someone experienced. The focus areas include:

- Set the textures map right
- Optimizing lighting and shadow effects for more realistic rendering.
- Adjusting controls (OrbitControls) for smoother and more intuitive object movement and rotation.

Proven experience with React Three Fiber and Three.js.
Relevant 3D viewer projects in your portfolio.
Ability to deliver efficient, high-quality work within a short timeframe.

Note:
I will ignore bot offers immediately. ChatGPT or AI-generated responses will be deleted on sight. Please read the description carefully and stop wasting my time with generic or automated offers.

To apply, please provide:

A brief summary of your experience.
Relevant projects you’ve worked on.
Your estimated time to complete this and your budget.
I’m looking forward to working with a skilled professional to bring my 3D viewer to the next level.

I only need 1-2 Hours, a professional can do it easy and fast - to fix.

Skills: React.js, Three.js
Hourly rate: 15 - 25 USD
10 minutes ago
  • Websites, IT & Software, React.js, Three.js
Frontend in React/NextJS/Tailwind/Typescript - API Integration
1,500 USD 1 hour ago
Client Rank - Excellent

Payment method verified
$26'475 total spent
22 hires , 9 active
44 jobs posted
50% hire rate, 2 open job
11.95 /hr avg hourly rate paid
1848 hours
5.00 of 17 reviews
Registered at: 19/05/2021
CA Canada
Excellent
Required Connects: 10
I am looking for a front end made in React/Typescript/Tailwind using NEXTJS framework. Looking for someone to do initial setup using

Next auth, Zustand, Axios, Sentry
Once the setup is done, I want you to integrate the API in the views.
Skills: React, TypeScript, Sass, Remix
Fixed budget: 1,500 USD
1 hour ago
  • Web, Mobile & Software Dev, Web Development
Frontend Clone with Custom Backend Functionality
15 - 35 USD / hr
1 hour ago
Client Rank - Excellent

Payment method verified
$14'811 total spent
44 hires , 2 active
59 jobs posted
75% hire rate, 1 open job
20.62 /hr avg hourly rate paid
400 hours
4.91 of 45 reviews
Registered at: 27/09/2017
CA Canada
Excellent
Required Connects: 14
We are seeking an experienced web developer to replicate the frontend of a very simple website while ensuring that the backend functions align with specific project requirements. The goal is to create an identical user interface while customizing the underlying logic to suit predefined selections for certain elements on the site.

Key Responsibilities:
Clone the frontend of the target website, matching the design, layout, and interactive elements (HTML, CSS, JavaScript).

Implement backend functionality to support specific logic for element selection, ensuring it meets project needs.

Ensure smooth integration between the frontend and backend for an optimal user experience.

Ensure the cloned site is responsive and functions across desktop

Maintain clean, well-documented code for future updates or modifications.

Required Skills:
Strong experience in frontend development (HTML, CSS, JavaScript).

Proficiency with backend technologies such as PHP, Python, or Node.js.

Experience with databases for managing dynamic data (e.g., MySQL, MongoDB).

Ability to integrate backend logic with frontend UI.

Attention to detail in replicating design and layout.

Preferred Skills:
Experience with front-end frameworks like React or Vue.js.

Experience with backend frameworks like Django, Flask, or Express.js.

Project Requirements:

The final product should closely match the original website’s appearance and functionality.

The backend should support specific, configurable logic for certain elements on the site.
Skills: HTML, CSS, HTML5, JavaScript, CSS 3, Web Development, PHP
Hourly rate: 15 - 35 USD
1 hour ago
  • Web, Mobile & Software Dev, Web Development
Experienced .NET Developer for API Integration
not specified 1 hour ago
Client Rank - Excellent

Payment method verified
$8'385 total spent
21 hires , 15 active
36 jobs posted
58% hire rate, 2 open job
4.86 of 15 reviews
Registered at: 23/09/2023
BN Brunei Darussalam
Excellent
Required Connects: 20
We are in need of an experienced .NET developer to handle the integration of our API. The front end of our application is built using React and React Native. As a developer, you will be responsible for creating and maintaining the necessary endpoints and ensuring seamless communication between the front end and the API. The ideal candidate should have a strong understanding of .NET development, API integration, and experience working with React and React Native. Attention to detail and the ability to troubleshoot and resolve any issues that may arise during the integration process are essential skills for this role.

Skills required:
- .NET development
- API integration
- React
- React Native
Skills: API, .NET Framework, API Integration, RESTful API, C#, React, React Native, JavaScript
Budget: not specified
1 hour ago
  • Web, Mobile & Software Dev, Web Development
iOs, Android and web app - real-time push notifications and file upload/parsing
not specified 2 hours ago
Client Rank - Medium

Payment method verified
$50 total spent
2 hires , 1 active
2 jobs posted
100% hire rate, 1 open job
5.00 of 1 reviews
Registered at: 19/10/2023
US United States
Medium
Required Connects: 13
Hi,

I have a concept that I crudely developed not in an app format though so am looking to properly develop this full stack app and wanted to see how many hours you'd estimate the following to take?

An app for iOS, Android, and mobile and desktop browsers that will send real-time push notifications to the user when a trigger word is triggered from real-time computer audio (which will be a webinar). So for example, a user will be listening to a webinar online from any site, and then simultaneously he will login to the app or mobile/desktop site and take an action (such as click a button or whatever will be the best user experience) to start the push notifications (which will continuously send to a user every time a trigger word is triggered). When he logs out or after a certain time of no audio, the notification script will stop running.

The user would need to login to the app/website, so there will be user management with email/login validation and authentication. Also, the database would log the time of every push notification to its user so the user could view a history of all his notifications; the app would have a file upload box for a user to upload PDF's and JPEGs (so database would need to be able to store PDFs and JPEGs), and the app would need to automatically scan the PDF or JPEG once uploaded for data such as date, title, author, etc. The user could login and view a history of all the webinars he listened to and he would be able to filter his history by date, etc.

Are the above features things you have experience developing? What would the estimated timeline to develop this? And how many hours do you estimate something like this would take? Thank you.

Best,
Jarrad
Skills: React Native, iOS Development, Android App Development, Python, Objective-C, Swift, iOS, React, Mobile App Development, PostgreSQL, Web Development, SQL, Flask
Budget: not specified
2 hours ago
  • Web, Mobile & Software Dev, Mobile Development
Build a High-End E-Commerce Website for Peptides | Awwwards-Level Design
not specified 2 hours ago
Client Rank - Good

Payment method verified
$1'044 total spent
1 hires , 1 active
13 jobs posted
8% hire rate, 4 open job
15.00 /hr avg hourly rate paid
66 hours
no reviews
Registered at: 16/11/2023
US United States
Good
Required Connects: 20
Job Title:

Build a High-End E-Commerce Website for Peptides | Awwwards-Level Design

Job Description:

We are looking for a highly skilled web designer and developer to create a luxury e-commerce website for selling premium peptide products, including Semaglutide, BPC-157, and GLP-1. The website must rival VibeFuel.com in quality, originality, and design while maintaining its own unique, high-end identity tailored to the peptide market.

The website must:
• Look like a $40,000+ custom design and aim for Awwwards-level recognition.
• Exude luxury, professionalism, and trustworthiness to attract affluent, health-conscious customers.
• Incorporate cutting-edge design trends with seamless functionality and attention to every minor detail.

Key Deliverables:
1. Design:
• A clean, minimalist layout with high-quality product imagery.
• Subtle animations (e.g., hover effects, transitions) to enhance user experience.
• A visually engaging, responsive design optimized for desktop and mobile.
• A sophisticated color palette (deep blues, crisp whites, gold accents).
2. E-Commerce Functionality:
• Secure, streamlined checkout process.
• User accounts for order tracking and reordering.
• Dynamic product pages with detailed descriptions and lab certifications.
3. Content & Branding:
• Assistance with logo design and branding elements.
• Integration of educational content about peptides and their benefits.
4. Additional Features:
• SEO-optimized design and content.
• Blog section for regular updates.
• Interactive elements such as dosage calculators or live chat support.

Requirements:
• Proven experience in designing and developing luxury e-commerce websites.
• A portfolio that includes work comparable to VibeFuel.com or Awwwards-recognized designs.
• Expertise in platforms like Shopify, Webflow, or custom development with React/Next.js.
• Ability to provide revisions until the site meets the required quality standard.

Expectations:

The website must be just as beautiful, functional, and detailed as VibeFuel.com, while standing out with its own unique identity. If the final product does not meet this standard, payment will be withheld. We are only interested in working with professionals who are confident in delivering a website of this caliber.


How to Apply:

Please include the following in your application:
• Links to your portfolio, specifically highlighting projects comparable to VibeFuel.com.
• A brief overview of your approach to creating high-end, custom websites.
• Your estimated timeline and fees for completion.

Budget:

Open to proposals. Please provide a breakdown of your fees, timeline, and a portfolio showcasing relevant projects.

We are committed to creating an extraordinary shopping experience for our customers. If you’re confident in your ability to deliver a website that combines luxury design with flawless functionality, we’d love to hear from you!
Skills: Branding and Visual Identity, Graphic Design, 3D Design, Front-End Development, CSS, HTML, Web Design
Budget: not specified
2 hours ago
  • Web, Mobile & Software Dev, Web & Mobile Design
React Native Developer Needed to Build a Mobile App with Expo
250 USD 2 hours ago
Client Rank - Risky

Payment method not verified
1 open job
US United States
Risky
Required Connects: 9
We are looking for a skilled mobile app developer to create a user-friendly application for both Playstore (Android) and iOS platforms. The ideal candidate will have experience in developing and deploying apps, ensuring they meet all necessary guidelines and performance standards. You should be able to transform our ideas into a functional and engaging app. If you have a strong portfolio showcasing your previous mobile app projects, we want to hear from you!
Skills: Smartphone, Android, iOS, Mobile App Development, User Authentication
Fixed budget: 250 USD
2 hours ago
  • Web, Mobile & Software Dev, Mobile Development
Full Stack Web Developer Needed - React.js, Firebase, TypeScript
15 - 35 USD / hr
2 hours ago
Client Rank - Excellent

Payment method verified
$155'658 total spent
149 hires , 15 active
359 jobs posted
42% hire rate, 3 open job
7.14 /hr avg hourly rate paid
18705 hours
4.93 of 184 reviews
Registered at: 19/02/2012
US United States
Excellent
Required Connects: 21
We are seeking an experienced full stack web developer proficient in React.js, Firebase Cloud Functions, and TypeScript. The ideal candidate will have a strong grasp of both front-end and back-end development, with the ability to create scalable applications. You will work closely with our team to design, develop, and maintain our web applications. If you are passionate about coding and have a problem-solving mindset, we would love to hear from you!
Skills: React, JavaScript, Web Application, Node.js, TypeScript
Hourly rate: 15 - 35 USD
2 hours ago
  • Web, Mobile & Software Dev, Web Development
Full Stack Developer - Python & React
25 - 40 USD / hr
4 hours ago
Client Rank - Excellent

Payment method verified
$836'777 total spent
205 hires , 15 active
556 jobs posted
37% hire rate, 3 open job
19.53 /hr avg hourly rate paid
41327 hours
4.92 of 189 reviews
Registered at: 31/05/2013
US United States
Excellent
Required Connects: 21
The Full Stack Developer is responsible for implementing and documenting specific functionality within the larger context of client project requirements and design documentation. You will also be responsible for some or all of the architecture's implementation during the project's production portion, including architecture adjustments based on requirements changes and assisting in team oversight and code review.
You must have experience in python and React.
Experience with Relational and NoSQL databases is valued, as is experience translating client requirements into solid, scalable technical architectures.
Experience with OpenAI’s Chat Completion API via Websockets is highly desirable.

You will be expected to be available to attend daily stand-ups, coordinate with a distributed multidisciplinary team, and complete all tasks on time and to specification. This is a remote work contract, but you must have at least 4 hours overlap with the Studio time, 9 am to 5 pm PST.

Roles and Responsibilities
Implement specific functionalities based on design and technical documentation, aligning code with other application functionality to promote code reuse and support best practices.
Clear English communication skills, both written and verbal.
Integrate via APIs with backend and third-party services.
Have informed opinions on proper programming standards, and be able to explain them to others.
Adapt to solve problems anywhere in the full technical stack, be it front end or back end, to ensure project success. Must have curiosity and a drive to expand capabilities.
Assist other developers on the team through peer review and QA.
As required, attend team meetings, including project kick-offs, stand-ups, and additional meetings.
Utilize and contribute to the company-wide code library.
Skills: Python, JavaScript, React
Hourly rate: 25 - 40 USD
4 hours ago
  • Web, Mobile & Software Dev, Web Development
React Expert to Fix Custom Wordpress App Issues
not specified 5 hours ago
Client Rank - Medium

Payment method verified
1 jobs posted
1 open job
no reviews
Registered at: 20/06/2023
US United States
Medium
Required Connects: 15
short-term, quick turnaround, urgent

We hired an outside developer who developed a version of his existing app for us to use. This version still interacts with his existing product so there are some limitations in what we can and can't do with it.

There are remaining issues that he is not available to fix. We are doing a beta launch next week and have a small list of fixes needed as soon as possible.

My team, in the Philippines, has been able to handle many issues with CSS but others require working with the React files that the developer provided. My team has virtually no experience with React and are struggling. The app developer has told us that everything we want to do is possible with the React files provided.

He estimates that the fixes should take a day or less. We are looking for a fixed price that is guaranteed to work prior to payment being released.

The list can be viewed in the attached PDF

There may be some things added to this list but they will likely be minor. Your quote need not include these at this time.

This will not evolve into a full time position but for the right person it will become a frequent opportunity.
Skills: React, WordPress Development, CSS
Budget: not specified
5 hours ago
  • Web, Mobile & Software Dev, AI Apps & Integration
Full Stack Developer Needed for Product Development
10 - 25 USD / hr
5 hours ago
Client Rank - Medium

Payment method verified
$975 total spent
2 hires , 2 active
9 jobs posted
22% hire rate, 1 open job
4.00 /hr avg hourly rate paid
100 hours
no reviews
Registered at: 18/07/2024
US United States
Medium
Required Connects: 20
We are seeking a talented Full Stack Developer to join our team for an exciting project. The ideal candidate will have hands-on experience building products from the ground up using Python, Django, and React. You will play a crucial role in designing, developing, and deploying applications while collaborating with our product team. If you are passionate about creating impactful software solutions, we want to hear from you!
Skills: JavaScript, Web Development, CSS, HTML, API Integration
Hourly rate: 10 - 25 USD
5 hours ago
  • Web, Mobile & Software Dev, Web Development
React/Laravel Performance Optimization Expert
~18 - 147 USD 5 hours ago
Client Rank - Excellent

Payment method verified
$48'116 total spent
50 hires
2 open job
4.99 of 28 reviews
Registered at: 24/02/2020
IN India
Excellent
I'm seeking a seasoned professional with expertise in React and Laravel to optimize the performance of my existing project.

Key Requirements:
- Primarily focusing on the Frontend (React) where most bugs are located.
- Enhancing the performance of API endpoints on the Backend (Laravel).
- Leveraging skills in bug fixing, new feature development and performance optimization to deliver effective solutions.
- A deep understanding of React and Laravel is crucial, with prior experience in similar performance enhancement tasks being a significant advantage.

Your role will involve identifying bottlenecks, debugging issues, and implementing improvements to ensure a smoother, faster user experience. Your ability to work efficiently and communicate clearly will be key to the success of this project.

Continuous support needed - but those who has good experience in both React and Laravel only please contact

Skills: Node.js, Laravel, React.js
Fixed budget: 1,500 - 12,500 INR
5 hours ago
  • Websites, IT & Software, Node.js, Laravel, React.js
Community Manager
15 - 25 USD / hr
5 hours ago
Client Rank - Risky

Payment method not verified
1 open job
no reviews
Registered at: 05/04/2024
SL Sierra Leone
Risky
Job Description

Community Manager

Part time or Freelancer

Okay to use own laptop

Mandatory Skills
Need to manage digital Calender - when to post , where and why , what
Linkedin expert /Social media expert good reach of linkedin
Should have worked on Instantly apps - CRM for marketing mails.
Should have worked on US Based organization
Should have worked in IT Organization
Remote Job
InterSources Inc. is seeking an experienced and results-oriented Global Digital Marketing & Brand Strategist with a minimum of 3 - 5 years of experience in digital marketing and branding. As a leader in IT consulting, staffing, and outsourcing services, we need a strategic professional who can position our company as the go-to partner for businesses seeking innovative tech solutions.
This role will take ownership of branding, inbound marketing, content creation, and digital campaigns, ensuring that InterSources Inc. is effectively communicating its value across all channels. The successful candidate will be a key driver in expanding our digital presence, generating inbound leads, and acting as a marketing advocate for our customers.

Daily Job Responsibilities

Oversee day-to-day management of social publishing and editorial calendars to ensure successful program development and execution across various social channels (LinkedIn, Bluesky, & Web).
Stay current on social platform updates impacting copywriting, community management and social media strategy.
Help all copywriting across social media channels.
Manage Social Media calendar.
Manage Marketing Process Flow from ideation to Post release.
Manage day-to-day tactical initiatives and postings across client channels.
Collaborate with SEO specialist to fine tune content.
Collaborate with Graphic specialist to create unique exciting brand images.
Develop / Generate reports that provide insight on the performance of Marketing Efforts
Manage Email Campaigns
Coordinate with Sales Teams to create and generate marketing emails
Develop a deep comprehension of client social initiatives to inform voice, tone and cultural relevance of copywriting to add value.
Continually survey the social landscape to maintain best practices and make strategic recommendations to clients and internal teammates.
Have a pulse on culture and identify and react to trends within the entertainment, TV and film industries.
Able to support in ideating concepts and ideas to drive engagement and growth

We are looking for a strategic and entrepreneurial Community Manager who is excited about the ever-evolving world of social media to work on the InterSources' account. The ideal candidate is passionate, forward thinking, and looking to move their career forward within a dynamic, fast-paced organization.

Skills: Internet Marketing, Twitter, Advertising, Google Plus, Social Media Marketing
Hourly rate: 15 - 25 USD
5 hours ago
  • Websites, IT & Software, Sales & Marketing, Freight, Shipping & Transportation, Twitter, Google Plus, Internet Marketing, Social Media Marketing
[$250] Error message is not displayed when entering characters that cannot be in a zip code #53918 - Expensify
250 USD 5 hours ago
Client Rank - Excellent

Payment method verified
Upwork Enterprise Client
$11'226'614 total spent
11108 hires , 1509 active
17376 jobs posted
64% hire rate, 610 open job
62.26 /hr avg hourly rate paid
1790 hours
5.00 of 8438 reviews
Registered at: 16/11/2020
US United States
Excellent
Required Connects: 14
Upwork Enterprise Client
Expensify is a team of generalists developing today's leading expense management tool. Maintaining our reputation as an innovative leader in the world of finance requires an incredibly reliable and secure system for processing financial transactions. Accordingly, we primarily leverage time-tested languages, but we're looking to unify our front-end across platforms. For this, we're leveraging React Native and are looking toward the community on Upwork to help solve a variety of problems, both big and small, related to this migration.

Please see the GitHub issue for full details: github.com/Expensify/App/issues/53918

Your Proposal:

- You *must* post a proposal for how you will fix this issue in the GitHub issue linked above.
- Your proposal should include a technical explanation of the changes you will make. You are not required to submit the final solution or code along with your proposal.
- Your proposal will be reviewed.
- If your proposal is accepted, you should post the proposal in Upwork and you will be hired for the job.
- AFTER your proposal is accepted in Upwork and you have accepted the offer, you may submit the code to implement your solution. To submit the code, go to the Expensify/App GitHub repo where you'll create a fork of our codebase. You'll create a branch on that fork, and when your code is ready for review, you'll create a pull request in our repository to merge your code into our codebase. Include screenshots and confirmation that you have tested the pull request on all platforms. Our engineers will review the code, and approve and merge when the code meets our requirements.

Please review our Contributor Guidelines before submitting a proposal - github.com/Expensify/App/blob/main/contributingGuides/CONTRIBUTING.md

**Important:** As documented in our CONTRIBUTING.md, payment amounts are variable, dependent on any regressions your work causes.
Fixed budget: 250 USD
5 hours ago
  • Web, Mobile & Software Dev, Mobile Development
Improve My 3D Viewer in React Three Fiber
30 - 250 USD 5 hours ago
Client Rank - Excellent

Payment method verified
$35'646 total spent
32 hires , 1 active
2 open job
5.00 of 13 reviews
Registered at: 25/01/2013
DE Germany
Excellent
I'm looking for an experienced developer to enhance my existing 3D viewer built with React Three Fiber. Based on its current state, I estimate this will take 2-3 hours for someone experienced. The focus areas include:

Optimizing lighting and shadow effects for more realistic rendering.
Adjusting controls (OrbitControls) for smoother and more intuitive object movement and rotation.
Performance optimization to ensure smooth functionality even with complex models.
Optional: Adding features for real-time material and texture adjustments within the viewer.
Requirements:

Proven experience with React Three Fiber and Three.js.
Relevant 3D viewer projects in your portfolio.
Ability to deliver efficient, high-quality work within a short timeframe.
Note:
? I will ignore bot offers immediately. ChatGPT or AI-generated responses will be deleted on sight. Please read the description carefully and stop wasting my time with generic or automated offers.

To apply, please provide:

A brief summary of your experience.
Relevant projects you’ve worked on.
Your estimated time to complete this and your budget.
I’m looking forward to working with a skilled professional to bring my 3D viewer to the next level. ?

Skills: Three.js, Next.js
Fixed budget: 30 - 250 USD
5 hours ago
  • Websites, IT & Software, Three.js, Next.js
Full Stack Developer (Django + React) to Customize SaaS Boilerplate for MVP
12 - 17 USD / hr
5 hours ago
Client Rank - Excellent

Payment method verified
$27'842 total spent
54 hires , 9 active
105 jobs posted
51% hire rate, 6 open job
6.43 /hr avg hourly rate paid
1450 hours
4.91 of 39 reviews
Registered at: 23/04/2018
US United States
Excellent
Required Connects: 14
Looking for a talented full stack developer with solid experience in Django and React to help us customize the Apptension SaaS Boilerplate for our MVP. The project includes bringing our Figma designs to life, integrating existing boilerplate features like authentication, payments, and notifications, and building out custom functionality specific to our product.

You’ll be working on both the backend and frontend, tweaking and extending the boilerplate to meet our needs while keeping things scalable and clean.

This is the code we would like to use:
https://www.apptension.com/saas-boilerplate
Skills: Django, React
Hourly rate: 12 - 17 USD
5 hours ago
  • Web, Mobile & Software Dev, Web Development
Update React Native Project to Latest Versions (Android + Dependencies)
not specified 6 hours ago
Client Rank - Excellent

Payment method verified
$45'467 total spent
112 hires , 1 active
197 jobs posted
57% hire rate, 1 open job
15.46 /hr avg hourly rate paid
2589 hours
5.00 of 98 reviews
Registered at: 17/04/2019
HU Hungary
Excellent
Required Connects: 14
Need to update my React Native project to the latest stable versions, including:

1. All package.json dependencies (React Native, Expo, Firebase, etc.)
2. Android Gradle configurations
3. Ensure compatibility across all updates
4. Test builds and basic functionality

Required Skills:
- Recent React Native experience
- Expo knowledge
- Android/Gradle expertise

Deliverables:
- Updated package.json and gradle files
- Working build
- Brief upgrade notes
Skills: Android, React Native
Budget: not specified
6 hours ago
  • Web, Mobile & Software Dev, Mobile Development
Urgent: React Native Developer with Expertise in Bluetooth (BLE) Connectivity
300 USD 6 hours ago
Client Rank - Good

Payment method verified
$1'209 total spent
7 hires
14 jobs posted
50% hire rate, 1 open job
75.00 /hr avg hourly rate paid
3 hours
4.27 of 4 reviews
Registered at: 24/02/2017
GB United Kingdom
Good
Required Connects: 14
Job Description:
I am urgently seeking a highly skilled React Native developer with extensive experience in Bluetooth Low Energy (BLE) programming to refine and rebuild a prototype app designed for a Teacher/Student use case.

Project Overview:
The app facilitates a classroom setup where:

Connection Setup: Students use tablet devices to scan a QR code and connect to the Teacher's device via Bluetooth.
Note: No WiFi or internet connectivity will be available during the lesson. The app is strictly dependent on Bluetooth.
Hub-and-Spoke Model:
Teacher's device acts as the central hub.
Students' devices communicate only with the Teacher's device (never with each other).
Interaction Workflow:
Teacher's device pushes quizzes or activities to the Student devices.
Students submit responses back to the Teacher's device.
Current State of the App:
Prototype Built:
All 5 modules are already implemented in the prototype app.
APIs are built, and screens are designed.
Issues:
The current implementation is buggy and unstable.
The Bluetooth interface connectivity needs a robust and sustainable reimplementation.
Key Responsibilities:
Review the existing prototype code.
Optimize or reimplement the Bluetooth (BLE) connectivity layer.
Fix any app stability or performance issues.
Build the app using best practices for long-term maintainability.
Requirements:
Extensive experience with:
React Native app development.
Bluetooth Low Energy (BLE) programming and debugging in React Native.
Ability to work with existing APIs and designed screens.
Strong problem-solving and debugging skills.
Knowledge of hub-and-spoke communication models.
Bonus Skills:
Familiarity with offline-first app architecture.
Experience working with QR code scanning in mobile apps.
Deadline:
This project is extremely urgent and must be delivered by January 6th, 2025. Only apply if you can fully commit to meeting this deadline.

To Apply:
Include a brief summary of your experience with React Native and Bluetooth (BLE).
Share examples of past projects where you implemented BLE.
Confirm your availability to meet the January 6th deadline.
Set the last word in your proposal to BLE so I know you've read this post thoroughly.
Looking forward to working with a skilled professional who can commit to delivering on time!
Skills: Android App Development, iOS Development, React Native
Fixed budget: 300 USD
6 hours ago
  • Web, Mobile & Software Dev, Mobile Development
[$250] Search- New participant/email is shown as recent chat when found via search #53876 - Expensify
250 USD 6 hours ago
Client Rank - Excellent

Payment method verified
Upwork Enterprise Client
$11'226'614 total spent
11108 hires , 1509 active
17376 jobs posted
64% hire rate, 610 open job
62.26 /hr avg hourly rate paid
1790 hours
5.00 of 8438 reviews
Registered at: 16/11/2020
US United States
Excellent
Required Connects: 14
Upwork Enterprise Client
Expensify is a team of generalists developing today's leading expense management tool. Maintaining our reputation as an innovative leader in the world of finance requires an incredibly reliable and secure system for processing financial transactions. Accordingly, we primarily leverage time-tested languages, but we're looking to unify our front-end across platforms. For this, we're leveraging React Native and are looking toward the community on Upwork to help solve a variety of problems, both big and small, related to this migration.

Please see the GitHub issue for full details: github.com/Expensify/App/issues/53876

Your Proposal:

- You *must* post a proposal for how you will fix this issue in the GitHub issue linked above.
- Your proposal should include a technical explanation of the changes you will make. You are not required to submit the final solution or code along with your proposal.
- Your proposal will be reviewed.
- If your proposal is accepted, you should post the proposal in Upwork and you will be hired for the job.
- AFTER your proposal is accepted in Upwork and you have accepted the offer, you may submit the code to implement your solution. To submit the code, go to the Expensify/App GitHub repo where you'll create a fork of our codebase. You'll create a branch on that fork, and when your code is ready for review, you'll create a pull request in our repository to merge your code into our codebase. Include screenshots and confirmation that you have tested the pull request on all platforms. Our engineers will review the code, and approve and merge when the code meets our requirements.

Please review our Contributor Guidelines before submitting a proposal - github.com/Expensify/App/blob/main/contributingGuides/CONTRIBUTING.md

**Important:** As documented in our CONTRIBUTING.md, payment amounts are variable, dependent on any regressions your work causes.
Fixed budget: 250 USD
6 hours ago
  • Web, Mobile & Software Dev, Mobile Development
Full Stack Web Developer for AI startup
5,000 USD 6 hours ago
Client Rank - Excellent

Payment method verified
$6'420 total spent
19 hires
17 jobs posted
100% hire rate, 1 open job
19.11 /hr avg hourly rate paid
50 hours
4.99 of 20 reviews
Registered at: 17/02/2020
CA Canada
Excellent
Required Connects: 10
We are building an AI-native document management platform so sales teams. Using our platform, salespeople and solution architects would be able to generate a contract or pricing documents with AI, collaborate and edit them within minutes instead of weeks.

You will have an opportunity to work with founders: an executive from IBM and senior engineer on a new innovative AI product. You will also have a chance to learn more about building AI agents. We are based in Toronto, Canada.

We are looking for senior full stack engineer who have built web applications with great UI/UX interface before.

Qualifications:
- Full-time availability, available within 2-3 weeks, sooner the better!
- Expert in ReactJS/NextJS and Python.
- Built great web applications before, shipped to production and maintained them.
- go-getter mindset
- (preferable) product sense, UI/UX and general design thinking
- (preferable) timezone within 3-4 hours overlap with Eastern Timezone (ET): e.g. LatAm and South America
- (preferable) AWS experience

If it's an agency, please let us talk directly with an engineer, as the hired engineer would be interviewed and working directly with the highly technical founder.
Skills: JavaScript, React, Python, Web Development, Amazon Web Services, API, UI/UX Prototyping
Fixed budget: 5,000 USD
6 hours ago
  • Web, Mobile & Software Dev, Web Development
Develop a mobile app using MERN Stack on Expo
5 - 30 USD / hr
7 hours ago
Client Rank - Good

Payment method verified
$355 total spent
8 hires , 2 active
19 jobs posted
42% hire rate, 1 open job
5.00 of 6 reviews
Registered at: 26/12/2020
ZA South Africa
Good
Required Connects: 18
Fix bugs on existing app

Video of app https://drive.google.com/file/d/1VwOj1c_5Qun6JvyyKU8QD9Hs3EsGc0qq/view?pli=1
Skills: React Native, MongoDB, Android, iOS, API Integration, Expo.io, Node.js
Hourly rate: 5 - 30 USD
7 hours ago
  • Web, Mobile & Software Dev, Mobile Development
Backpack for laravel specialist
10 - 20 USD / hr
7 hours ago
Client Rank - Medium

Payment method verified
$58 total spent
5 hires
50 jobs posted
10% hire rate, 3 open job
5.00 of 3 reviews
Registered at: 29/10/2015
NL Netherlands
Medium
Required Connects: 18
Good day,

We are looking for a backpack for laravel specialist.

Please react with:
- 3 example projects
- ourly rate

Thanks for the reaction.

Br

Maarten
Skills: Web Design, backpack, Laravel, PHP, Web Development, JavaScript, CSS
Hourly rate: 10 - 20 USD
7 hours ago
  • Web, Mobile & Software Dev, Web Development
FULL Stack Developer - NextJS Ful+ Cloudflare 🙏
15 - 30 USD / hr
7 hours ago
Client Rank - Excellent

Payment method verified
$1'703 total spent
14 hires , 1 active
42 jobs posted
33% hire rate, 6 open job
7.00 /hr avg hourly rate paid
56 hours
4.63 of 13 reviews
Registered at: 11/03/2024
SI Slovenia
Excellent
Required Connects: 20
Hey programmers, welcome to my job proposal!

I'm looking for a highly skilled programmer with at least 5+ years of work experience.

The project is built in Next.js + Cloudflare.

P.S. More information on private. Thanks for understanding

NO agencies!
Skills: nextJS, React, JavaScript, Node.js, CSS, Web Development, HTML, MongoDB
Hourly rate: 15 - 30 USD
7 hours ago
  • Web, Mobile & Software Dev, Web Development
CodeComply Mobile App Development (iOS)
~156 - 469 USD 7 hours ago
Client Rank - Excellent

Payment method verified
$85'587 total spent
65 hires , 16 active
10 open job
4.95 of 15 reviews
Registered at: 07/10/2008
AU Australia
Excellent
Project Overview:
The CodeComply mobile app on AppStore is to be developed as an extension of the existing web application (www.codecomply.com.au). The app will replicate the full functionality of the website, providing users with the ability to conduct property inspections via their mobile devices while maintaining integration with the existing MySQL database. Users will register on the web application but will perform inspections and access data seamlessly through the app.
________________________________________
Scope of Work:
1. General Requirements:
• Platform: The app must be developed for both iOS and Android platforms using a cross-platform framework (e.g., Flutter or React Native).
• Database Integration: The app will use the same MySQL database as the web application.
• Backend Language: Maintain compatibility with the current Perl/CGI backend.
• User Registration: Users will register on the web application and log in to the app using the same credentials.
• UI/UX Design: Ensure a user-friendly interface, optimized for mobile use, while maintaining the branding consistency of the CodeComply website.
________________________________________
2. Core Functionalities:
2.1 User Authentication:
• Login/Logout: Allow users to log in using credentials registered on the web app.
• Session Management: Implement secure session handling with token-based authentication.
2.2 Dashboard:
• Replicate the web app’s dashboard to display:
o Links to start a new inspection.(Phase 1)
o User profile information. .(Phase 2)
o List of previous inspections conducted by the user.(Phase 2)
2.3 Conduct Inspections: (Phase 1)
• Allow users to select property categories for inspection.
• Implement guided workflows for line-by-line inspection of property elements:
o For example, users should inspect plasterboard defects across the entire property before moving to the next defect type.
• Enable photo uploads for each inspection item.
• Provide tooltips or information bubbles for defect definitions, referencing the Standards and Tolerances issued by the Victorian Building Authority.
• Save progress locally in case of connectivity loss, with auto-sync functionality when the connection is restored.
2.4 Inspection History: (Phase 3)
• Display a detailed list of completed inspections.
• Allow users to:
o View and edit saved reports.
o Export reports as PDFs.
2.5 Push Notifications: (Phase 3)
• Notify users of:
o Incomplete inspections.
o Updates or changes to Standards and Tolerances.
2.6 Feedback and Support: (Phase 4)
• Provide a feedback form to report issues or suggest improvements.
• Include a contact support feature with email integration.
________________________________________
3. Technical Requirements:
3.1 Backend Integration:
• Use API endpoints to connect the app with the existing Perl/CGI backend.
• Ensure seamless data flow between the app and the MySQL database.
3.2 Database:
• Use the existing MySQL database for:
o Storing user credentials.
o Managing inspection data.
o Recording user actions and updates.
3.3 Security: (Phase 6)
• Ensure secure communication using HTTPS with SSL encryption.
• Implement data encryption for sensitive user data.
• Use token-based authentication for API calls.
3.4 App Performance:
• Optimize the app for low latency in data retrieval and submission.
• Enable offline mode with data synchronization.
________________________________________
4. Design Requirements:
• User Interface: (Phase 1)
o Simplified navigation tailored for mobile.
o Maintain visual consistency with the CodeComply website.
o Use responsive design principles for various screen sizes.
• User Experience:
o Provide an intuitive step-by-step process for inspections.
o Offer real-time feedback and validation for user inputs.
________________________________________
5. Testing and Quality Assurance: (Phase 4)
• Conduct rigorous testing for:
o Cross-platform functionality.
o Backend and database integration.
o Usability and responsiveness on various devices.
• Include user acceptance testing with a focus group of existing web app users.
________________________________________
6. Deliverables (I will provide)
• Fully functional mobile application for iOS and Android. (we will pay per screen). Small milestones
• Documentation:
o App user manual.
o API documentation.
o Deployment and maintenance guide.
• Post-launch support for bug fixes and minor updates (define a support timeline).
________________________________________
7. Timeline and Milestones:
1. Week 1-2: Project kickoff, requirements gathering, and design.
2. Week 3-6: Development of core functionalities and backend integration.
3. Week 7-8: UI/UX refinement and testing phase.
4. Week 9: User acceptance testing.
5. Week 10: Launch and post-launch support.
________________________________________
8. Budget Considerations:
• Specify hourly rates or fixed costs for development.
• Include costs for app store publishing (Google Play and Apple App Store).
________________________________________
9. Future Enhancements: (Other considerations)
• AI-assisted defect identification using image recognition.
• Multi-language support.
• Advanced analytics and reporting for users.

Skills: Mobile App Development, iOS Development
Fixed budget: 250 - 750 AUD
7 hours ago
  • Websites, IT & Software, Mobile Phones & Computing, iOS Development, Mobile App Development
Full Stack Developer for Document Platform
15 - 55 USD / hr
7 hours ago
Client Rank - Medium

Payment method verified
1 jobs posted
1 open job
no reviews
Registered at: 22/03/2024
US United States
Medium
Required Connects: 15
We are seeking a skilled Full Stack Developer to continue to build features and functions into an existing document management platform. The platform uses the following: AWS, GitHub, MongoBD, Docker, and Google Authentication (Google ACC). It also uses the document editing platform Apryse and currently uses Square for invoicing of subscribers to the platform. Any developer applying for this position must be familiar with these applications and platforms.

Developer will need to be responsive, and be capable of providing (and sticking to) anticipated deadlines.
Skills: Web Development, JavaScript, Node.js, React, Database Architecture
Hourly rate: 15 - 55 USD
7 hours ago
  • Web, Mobile & Software Dev, Web Development
Viking-Themed Creator Platform Development
5 USD 7 hours ago
Client Rank - Good

Payment method verified
$1'280 total spent
18 hires , 4 active
30 jobs posted
60% hire rate, 2 open job
4.96 of 9 reviews
Registered at: 25/01/2023
US United States
Good
Required Connects: 11
The 5 dollars is a place holder please send me a bid estimate for this project

Scope of Work

1. Build the Website f

Theme: Design and implement a Viking-themed creator platform similar to Fanvue.

Homepage:

Showcase Viking creators with dynamic, visually engaging profiles.

Include call-to-action buttons: “Buy Coins,” “Join as a Creator,” and “Explore Creators.”

Creator Profiles:

Customizable profiles featuring bios, subscription tiers, content galleries, and tipping options.

User Dashboard:

Display coin balances, transaction history, and wallet management for fiat and crypto.

Explore Page:

Implement a searchable directory of creators categorized into themes like "Fitness Vikings," "Saga Storytellers," and "Artistic Warriors."

2. Develop the Coin System

Coins as Exclusive Currency:

Create a virtual coin system where all platform transactions are processed in coins.

Define the exchange rate: 1 coin = $1 (fiat equivalent).

Discount for Crypto Payments:

Incentivize purchases using our crypto token with bonuses (e.g., $10 worth of crypto = 12 coins).

Coin Packages:

Provide tiered bundles with incentives:

$10 = 10 coins.

$50 = 55 coins (10% bonus).

$100 = 120 coins (20% bonus).

Wallet System:

Develop a secure wallet to store and track coins and crypto tokens.

Enable users to purchase coins using fiat or crypto seamlessly.

3. Crypto Integration

Payment Gateway:

Integrate a payment processor (e.g., Coinbase Commerce or BitPay) to accept our crypto token for purchasing coins.

Wallet Integration:

Build functionality for users to:

Purchase coins using crypto.

View balances for both coins and crypto tokens in a secure wallet.

Creator Payouts:

Allow creators to withdraw earnings in fiat or convert coins into our crypto token.

4. Additional Features

Gamification:

Add loyalty rewards, bonus coins for crypto purchases, and VIP perks for high coin/token spenders.

Analytics:

Provide creators with performance insights, such as top-earning content and user engagement metrics.

Compliance and Security:

Implement KYC/AML for all fiat and crypto transactions.

Add age verification for users (18+ minimum).

Secure all wallet transactions and platform data.

Required Skills

Proven experience developing creator platforms (e.g., Fanvue, OnlyFans).

Full-stack web development (e.g., React, Vue.js, or similar frameworks).

Backend development (Node.js, Python, or equivalent).

Payment gateway integration (fiat and crypto).

Blockchain technology and wallet development.

UI/UX design tailored for branding and theme customization.

Strong understanding of security best practices.

Deliverables

Fully functional Viking-themed creator platform.

Integrated coin system with fiat and crypto payment options.

Secure wallet for users and creators.

Admin dashboard for platform operations.

Comprehensive testing and documentation.

Project Timeline and Budget

Budget: Provide a detailed proposal with milestones and cost breakdown.
Skills: Web Design, Java, UI Animation, JavaScript, HTML
Fixed budget: 5 USD
7 hours ago
  • Web, Mobile & Software Dev, Web & Mobile Design
🌟 Opportunity Mobile Developer Flutter / React / Dart! Work on Innovative Apps for USA Market 🌟
not specified 7 hours ago
Client Rank - Excellent

Payment method verified
$38'073 total spent
85 hires , 4 active
112 jobs posted
76% hire rate, 1 open job
18.41 /hr avg hourly rate paid
539 hours
4.99 of 51 reviews
Registered at: 13/12/2002
US United States
Excellent
Required Connects: 21
🌟 Long-Term, Exciting Opportunity for Flutter/Dart Developer! Work on Innovative Apps for the USA Market 🌟

Are you a talented Flutter/Dart developer or an ambitious coder ready to level up your career? Do you dream of working on innovative apps that can make a real impact in the USA market?

🚀 Then this opportunity is for you!

I’m an entrepreneur and founder of SumoLab, a digital marketing agency, and HEAVY DJs, a mobile DJ company based in Phoenix Arizona USA.

I’m currently working on a series of cutting-edge app ideas designed for both mobile, web and desktop platforms in several market niches.

I have over 20 years experience in marketing, design, UI/UX, project management, and as a business analyst.

My goal? To build creative, high-quality apps that help businesses grow and engage audiences like never before. The first project focuses on building a unique app for mobile DJs to interact with their audiences through song requests, event management, and marketing tools.

Here’s where YOU come in! 🎯

What I’m Looking For:
I’m seeking a passionate React, Java, Flutter, Dart developer who:

- Works as an independent freelancer (not with an agency).
- Wants to collaborate closely with a U.S.-based entrepreneur to bring exciting app ideas to life.
- Has experience with Flutter/Dart and/or related
- Is ready to contribute to both mobile and desktop app development.
- Is curious about the U.S. market and how apps are developed for global audiences.
- Can communicate well and bring creativity to the table.

What You’ll Get:
- A fun and collaborative work experience where your ideas matter.
- Hands-on exposure to the U.S. app market, including how apps are designed and marketed.
- Long-term opportunities to work on multiple exciting app projects.
- The chance to grow your skills with cutting-edge tools like Flutter, Dart, Firebase, and more.

Your First Project:
We’ll start with a mobile app for DJs that will allow:

- Audience Song Requests: Attendees can submit song requests while providing their name and email.
- Event Management: DJs can create profiles, manage events, and promote their services.
- Cross-Platform Development: One codebase for iOS, Android, and desktop versions!
- You’ll be involved in every step of the development process, from coding to testing and launching the app.

Requirements:
- Flutter/Dart or React, we can discuss experience: At least 1 year or a strong willingness to learn.
- Basic understanding of backend technologies (Firebase experience is a bonus).
- Independent and self-motivated: You’re excited to work without the structure of an agency.
- Communication skills: English doesn’t need to be perfect, but we should be able to communicate effectively.
- A creative mindset to solve problems and bring new ideas to the table.

Let’s build something amazing together! 🌎✨
Skills: Android, iOS, Mobile App Development, React Native, JavaScript, Flutter Stack
Budget: not specified
7 hours ago
  • Web, Mobile & Software Dev, Mobile Development
AI Component Development Expert Needed
300 USD 7 hours ago
Client Rank - Good

Payment method verified
$1'276 total spent
2 hires
4 jobs posted
50% hire rate, 1 open job
8.82 /hr avg hourly rate paid
137 hours
5.00 of 2 reviews
Registered at: 15/10/2022
US United States
Good
Required Connects: 14
We are seeking a skilled developer to build an AI component for our project. The ideal candidate should have experience in designing and implementing AI solutions that can seamlessly integrate with existing systems. You will work closely with our team to understand project requirements and deliver a robust AI solution. Please provide examples of previous AI projects you've worked on, along with your approach to problem-solving. We value creativity and technical expertise in this role.

Relevant Skills:
- AI and Machine Learning
- Python or R programming
- Data Analysis and Processing
- API Integration
- Problem Solving and Critical Thinking
Skills: JavaScript, React, Adobe Illustrator, HTML, Python
Fixed budget: 300 USD
7 hours ago
  • Data Science & Analytics, AI & Machine Learning
React Native dev needed
20 USD 7 hours ago
Client Rank - Medium

Payment method verified
5 jobs posted
1 open job
no reviews
Registered at: 01/12/2024
US United States
Medium
Required Connects: 9
Hi,

I am looking for an experienced dev with React Native Expo. I need to get the workflow fully thought out and established, and then polish up the app and make it look more appealing and simple.

I need guidance and input on weather or not to containerize the web portion of this project. I would like to discuss in more detail on what you would suggest for the tech stack for the backend. I would like to deploy to production and just setup only for me to be able to use and login and test it for awhile.

Thanks,
Skills: React Native, Expo.io, JavaScript, React, Docker Compose, Mobile App Development, Android App Development, iOS Development, NodeJS Framework, Cytoscape.js, iOS, Android, User Authentication
Fixed budget: 20 USD
7 hours ago
  • Web, Mobile & Software Dev, Web Development
Expert Mobile app developer
2,000 USD 7 hours ago
Client Rank - Medium

Payment method verified
1 open job
US United States
Medium
Required Connects: 10
We are looking for a skilled and experienced Mobile App Developer to create an enhanced version of the Hi Translate App for Android and iOS platforms. The app will include advanced features like real-time interaction with on-screen content, text extraction, and translation, while ensuring a seamless and user-friendly experience.

Responsibilities:
Build a high-performance mobile application with robust real-time interaction capabilities.
Implement text extraction and integrate translation APIs (e.g., Google Vision, Google Translate).
Design and optimize algorithms for low-latency performance.
Develop overlay features and accessibility tools using system services like Accessibility API (Android) and ScreenKit (iOS).
Ensure compatibility across devices and screen sizes with responsive designs.

Requirements:
Expertise in real-time text processing, translation APIs, and overlay development.
Knowledge of machine learning frameworks for on-device processing (e.g., TensorFlow Lite, Core ML).
Strong understanding of accessibility services and rendering APIs.

Submit your resume and portfolio showcasing relevant projects, along with a brief cover letter explaining why you’re the right fit for this role.
Additionally, go through the Hi Translate App thoroughly and include:
Your observations on the app's current features.
How you plan to enhance the app to deliver a more seamless user experience and improved functionality.
Any additional features you think will make the app stand out in the market.
Skills: Android, iOS, Mobile App Development, iOS Development, Android App Development, Machine Learning, React Native, Swift, JavaScript
Fixed budget: 2,000 USD
7 hours ago
  • Web, Mobile & Software Dev, Mobile Development
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