
Closed
Posted
Paid on delivery
looking for a strong and experienced Full-Stack Developer with expertise in React.js, Python FastAPI, and databases to join our project. The ideal candidate should be able to understand requirements and user stories independently, take ownership of assigned tasks, and deliver high-quality, production-ready work with minimal supervision. Key Responsibilities Develop and maintain modern, responsive UI dashboards using React.js. Build and integrate REST APIs using Python FastAPI. Work extensively with databases, including data retrieval, validation, processing, and verification. Understand user stories and business requirements thoroughly and convert them into working solutions. Work independently on assigned tasks without requiring constant guidance or step-by-step assistance. Analyze existing code and architecture and make appropriate technical decisions. Implement proper API-to-UI and database integrations. Perform thorough end-to-end testing to ensure features work correctly across the complete workflow. Identify, troubleshoot, and fix bugs before delivering the work. Ensure the implementation is stable, reliable, and free from avoidable defects. Write clear and maintainable test cases for implemented features. Prepare necessary technical and functional documentation. Take ownership of the complete feature lifecycle — from understanding the user story to development, database validation, testing, bug fixing, and documentation. Required Skills Strong experience with React.js Strong experience with Python and FastAPI Good understanding of SQL/databases and data validation Experience building and consuming REST APIs Strong understanding of frontend/backend integration Experience with end-to-end testing and debugging Ability to write effective unit/integration/test cases Good understanding of software development best practices Ability to understand user stories and requirements independently Strong problem-solving and analytical skills Good documentation and communication skills Important Expectations We are looking for someone who can think independently and take ownership of the work. You should be comfortable understanding a user story, analyzing the requirements, deciding on the appropriate implementation approach, developing the feature, validating the data, testing it end-to-end, fixing issues, and documenting the solution. We are not looking for someone who depends heavily on Claude, ChatGPT, Copilot, or other AI tools to complete development tasks. AI tools may be used as supporting tools when appropriate, but the developer must have strong fundamental programming skills and be able to understand, implement, debug, and explain their own code independently. Quality is very important to us. Features should be properly tested and delivered with minimal defects rather than simply completing the development task.
Project ID: 40639160
136 proposals
Remote project
Active 3 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
136 freelancers are bidding on average $58 USD for this job

Hi, I checked your "Full-Stack Developer for React.js/FastAPI Project" project description, it looks like the focus is on delivering a clean, responsive website that works well across all devices. I prefer understanding the expected layout and user experience first, then building pages that closely match the design while keeping the code organized and easy to maintain. Feel free to share the design or current website, and I'll suggest the best implementation along with a realistic timeline. Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$12 USD in 1 day
7.9
7.9

This project needs an owner who can take a user story from requirements through React UI, FastAPI services, database validation, end-to-end testing, bug fixing, and documentation—not just implement isolated code. With 10+ years in full-stack development and 249+ delivered projects, I can work independently within your existing architecture and make practical technical decisions. I’ll first review the current codebase, data model, and API contracts, then build responsive React dashboards with clear loading, validation, error, and empty states. On the backend, I’ll implement FastAPI REST endpoints with Pydantic schemas, secure validation, structured errors, and clean service/database separation. I’ll verify retrieval and processing directly against the SQL data, ensuring the UI and API remain consistent. Before delivery, I’ll cover the complete workflow with unit and integration tests using pytest, frontend tests where appropriate, and browser-level checks for critical paths. I’ll troubleshoot defects, document the implementation and setup, and explain the decisions clearly. I use AI tools only as optional support; I understand, debug, and stand behind my own code. Is the existing backend already FastAPI, or would I be working from a new service? Muhammad Saad
$30 USD in 3 days
7.7
7.7

With hands-on experience in React.js, Python FastAPI, and database management, I am well-equipped to tackle your Full-Stack Developer needs. My recent project involved building responsive UI dashboards using React.js and integrating REST APIs with Python FastAPI. Can you share more details about the project timeline and key deliverables to ensure alignment on expectations? Regards, Yogesh Kumar
$10 USD in 8 days
7.8
7.8

Hi there, I understand you're looking for a Full-Stack Developer with strong expertise in React.js and Python FastAPI. I can help you develop and maintain responsive UI dashboards while ensuring effective integration of REST APIs and database interactions. I'm experienced enough to analyze existing code and architecture, and I take ownership of my tasks to deliver high-quality, production-ready work. Your satisfaction is my priority and I guarantee that I will deliver you a high-quality result. Regards, Ali
$30 USD in 1 day
6.3
6.3

Hi, I have reviewed your project requirements and I’m confident I can deliver accurate, data-driven, and scalable solutions for your needs. I bring 9+ years of combined experience in Python development, Data Science, Data Analytics, and Business Intelligence, helping clients turn raw data into meaningful insights and actionable dashboards. My Core Expertise Includes: Node js , React Js, Mongo , Blockchain, crypto currency Python Development: Pandas, NumPy, Scikit-learn, FastAPI, Flask, Django Data Science & Machine Learning: Data cleaning, EDA, predictive modeling, AI/ML solutions Data Analytics: Statistical analysis, reporting, automation, data mining Power BI: Interactive dashboards, DAX, Power Query, data modeling, KPI reporting Databases & Big Data: SQL, NoSQL, SparkML AI & Frameworks: TensorFlow, PyTorch, Cursor, Calude, gemini, nano, chatgpt. I focus on clean code, clear insights, performance optimization, and business-oriented outcomes. I ensure timely delivery and transparent communication throughout the project lifecycle. Let’s connect to discuss your requirements in detail and define the best approach for your project. Looking forward to working with you. Regards, Anju
$450 USD in 14 days
6.5
6.5

Hello, Are you looking for someone who has previously worked with FastAPI in production environments? Does your project require mobile app integration as well? Excited to join your full-stack development project! I'll approach this by crafting robust, responsive UI dashboards with React.js and seamlessly integrating REST APIs using FastAPI. A key challenge is ensuring smooth API-to-UI integration, and I'll handle it by focusing on thorough end-to-end testing to ensure flawless interaction. I'll share previous examples in our chat if needed. Let's discuss the timeline and costs in detail during a quick chat to ensure everything aligns perfectly. Looking forward to exploring how I can contribute to your project. Feel free to message me anytime!
$10 USD in 1 day
6.1
6.1

Hello, I’ve carefully reviewed your requirements, especially the expectation that the developer should independently understand user stories, make sound technical decisions, and take ownership from implementation through testing and documentation. I can contribute across the complete React.js + FastAPI stack, including: Building clean, responsive React.js dashboards and reusable UI components Developing and integrating REST APIs with Python/FastAPI Designing and working with SQL databases, including validation and data integrity checks Connecting frontend, API, and database layers reliably Analyzing existing code and architecture before making changes Implementing authentication, validation, error handling and appropriate API states Writing unit/integration tests and performing end-to-end workflow testing Debugging issues across frontend, backend and database layers I also understand your position regarding AI-assisted development. I don’t rely on AI to replace fundamental programming or debugging skills. Any code I deliver must be something I can understand, test, troubleshoot and explain myself. I’m particularly interested in a long-term role where code quality, reliability and ownership matter more than simply closing individual tasks. I’m available to review your existing architecture and start with an assigned feature or task so you can evaluate the quality of my work directly. Best regards ADEEL
$20 USD in 7 days
6.1
6.1

Hi, I’m a Full-Stack Developer with strong experience in React.js, Python/FastAPI, REST APIs, SQL databases, and frontend/backend integration. Your project particularly caught my attention because you’re looking for someone who can take ownership of a feature from understanding the user story through development, database validation, testing, debugging, and documentation. I can independently handle the complete development workflow, including: Building clean, responsive React.js dashboards and UI components Developing and integrating production-ready FastAPI REST APIs Designing and working with SQL/database queries, validation, and data processing Connecting frontend, backend, and database layers reliably Understanding existing code and architecture before making changes Writing unit/integration tests and performing end-to-end testing Debugging issues across the complete application workflow I also agree with your expectations regarding AI tools. I use development tools as supporting resources when appropriate, but I rely on my own understanding of programming, architecture, debugging, and problem-solving. I’m comfortable explaining the implementation decisions and troubleshooting issues without depending on AI-generated code. I’d be happy to review your existing React/FastAPI architecture and user stories and start contributing to the project immediately. Best regards, RAHEEL
$20 USD in 7 days
6.3
6.3

Hello, Hope you are doing well. I’m a strong fit for this role because I’m comfortable owning a feature end-to-end—from understanding the user story and existing architecture to implementing the React/FastAPI integration, validating database logic, testing, debugging, and documentation. My experience includes React.js, Python/FastAPI, REST APIs, SQL databases, and full-stack application development. I’m particularly comfortable working with existing codebases, tracing issues across the frontend, API, and database layers, and making practical technical decisions without needing step-by-step guidance. For each feature, my approach is straightforward: * Understand the business requirement and acceptance criteria * Review the existing architecture and identify the right implementation approach * Build the React UI and FastAPI endpoints * Validate database queries, relationships, and data integrity * Test the complete UI → API → database workflow * Add appropriate unit/integration tests * Fix edge cases and avoidable defects before delivery * Document the implementation and any important technical decisions I also agree with your expectation around AI tools. I use them only as supporting tools when useful, but I rely on my own understanding of the codebase and can explain, debug, and maintain everything I deliver. I’m comfortable taking ownership of assigned features and communicating clearly throughout the process. Kind Regards
$150 USD in 1 day
6.2
6.2

Hello! We can provide an external full-stack developer for your React and FastAPI tasks. 1. Are you open to working with an external contractor or team for these tasks? 2. Which tasks and technologies need to be covered first? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$20 USD in 7 days
6.4
6.4

Hello, this reads like a production full-stack cleanup and delivery role, not just feature coding, and that’s usually where I’m most useful. The real engineering risk is contract drift between the dashboard, API layer, and database rules, which is where otherwise simple features start failing in end-to-end flows. I’ve built several production systems like this with FastAPI backends, data-heavy workflows, and frontend dashboards where the work includes understanding the story, tracing existing behavior, implementing the change, validating data paths, and tightening test coverage before handoff. The closest examples are DocIntel AI and Dent-Cloud. DocIntel AI maps well to FastAPI, PostgreSQL, admin workflows, and full feature ownership. Dent-Cloud is relevant on the dashboard side, API design, and production SaaS structure. I usually structure this work by separating UI behavior, API contracts, and persistence validation so defects can be isolated quickly. That tradeoff keeps feature delivery moving without letting the codebase turn into coupled workflow logic. I also put weight on end-to-end checks around the highest-risk user journeys, plus targeted integration tests where data verification rules tend to break. If useful, I can review the current feature flow and sketch the failure points across UI, API, and database boundaries before implementation. Clifton
$200 USD in 7 days
5.6
5.6

The hardest part here isn't the stack, it's taking a user story with vague acceptance criteria and shipping something that actually works end-to-end without needing three rounds of "that's not what I meant." I handle that by building the database schema and API contracts first, then wiring a rough UI so we can spot gaps in the requirements before anything's polished. I just wrapped a FastAPI + React project for travel itinerary generation with multi-step forms and dynamic data validation, full portfolio at ffulb.com. I'd start by mapping out your database relationships and standing up a local FastAPI dev environment with hot reload so we can iterate fast.
$25 USD in 2 days
5.6
5.6

I can help you by owning the full feature lifecycle—from reading the user story to delivering tested, documented, working software. I’ll analyze the requirements, make practical decisions about the React.js UI, FastAPI endpoints, and database logic, then validate and test the complete flow end-to-end. I don’t rely on AI tools to write my code; I understand and can explain every line I produce. My focus is on stable, defect-free results that work exactly as intended.
$20 USD in 7 days
5.7
5.7

Hi, Your requirement for **ownership and production-ready delivery** is exactly how I prefer to work. I can independently take a user story from requirement analysis → React UI → FastAPI/API logic → database validation → end-to-end testing → bug fixing → documentation. I’m experienced with **React.js, Python/FastAPI, SQL databases, REST APIs, and frontend/backend integration**, and I focus on understanding the existing architecture before making implementation decisions. I don’t rely on AI tools to write code I can’t explain. I use them only when useful—the actual implementation, debugging, testing, and technical decisions remain my responsibility. If you need someone who can take a feature, own it end-to-end, and deliver it with minimal supervision, I’d be happy to discuss the project. Best, Abhishek
$20 USD in 7 days
5.7
5.7

Hi, I hope you're doing well. I have carefully reviewed your project, Full-Stack Developer for React.js/FastAPI Project , and I'm confident I can deliver a high quality solution tailored to your requirements. I'm a Full Stack Developer with 4+ years of experience building websites, SaaS platforms, AI powered applications, automation tools, web scrapers, lead generation systems, and custom software. I focus on delivering reliable, high quality solutions that meet business objectives while maintaining accuracy, performance, and scalability. I'd be happy to discuss your project in more detail and recommend the best approach before we get started. I look forward to working with you. Thank you
$10 USD in 7 days
5.1
5.1

Hello. I'm Davide, I'm here to help you. I understand you need a senior full-stack developer who can own React.js, FastAPI, and database features end to end. I'll implement the UI in React.js with clean component boundaries, wire it to Python FastAPI REST endpoints, and use SQL-backed validation for every write and read path. For each user story, I'll trace the existing architecture, adjust the API contract, verify database state, and cover the feature with unit and integration tests before release. I’ll also add concise technical notes so the implementation is easy to maintain. Would you like me to focus first on new feature development, or on auditing the existing React/FastAPI architecture for the highest-impact fixes? I can start immediately and you can get good results within 4 days. Looking forward to hearing from you. Best regards, Davide
$30 USD in 1 day
5.0
5.0

✋ Hi There!!! ✋ THE PROJECT GOAL: DELIVER PRODUCTION-READY REACT AND FASTAPI FEATURES WITH STRONG DATABASE INTEGRATION, TESTING AND END-TO-END QUALITY. Build responsive React.js dashboards with clean, maintainable UI. Develop secure REST APIs using Python FastAPI. Handle SQL database retrieval, validation, processing and verification. Perform end-to-end testing, debugging and reliable bug fixing. Provide clear test cases, documentation and complete feature ownership. Similar React and FastAPI projects have been completed with REST APIs, database workflows, responsive dashboards and thorough testing. <-- Questions --> Which database technology is currently used in the project? Are the existing user stories and acceptance criteria already documented? Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$20 USD in 7 days
5.1
5.1

Hi, your project calls for someone who can take a React and FastAPI feature from requirements to a stable release with little supervision. That means clear thinking, solid implementation, careful data handling, and testing all the way through. I’ve built full-stack features with React, Python, FastAPI, and SQL-backed systems, including API integration, validation, debugging, and end-to-end checks. I’m comfortable reading existing code, making practical technical decisions, and shipping maintainable work. My approach is straightforward: understand the user story, map the data flow, build the backend and UI in sync, verify the database logic, then test the complete workflow and fix anything unstable before handoff. I also keep documentation clear so the feature is easy to support later. If this matches what you need, I’d be glad to discuss the next task. Best regards, Gabriel
$100 USD in 1 day
4.4
4.4

Hello there. I hope you are donig well. I have worked on several projects that required building responsive UI dashboards with React.js and creating REST APIs using Python FastAPI. My experience in database management ensures that I can handle data retrieval and processing efficiently, allowing for seamless integration of frontend and backend components. I understand the project's goal of developing high-quality, production-ready features with minimal supervision. My approach involves thoroughly analyzing user stories and requirements, followed by developing and testing features independently to ensure they meet business needs and are free from defects. I will provide a comprehensive solution that emphasizes quality and reliability. My focus on best practices in software development will ensure that the final product is well-documented, thoroughly tested, and maintains high standards throughout the feature lifecycle, from development to bug fixing. Please feel free to reach out to me. I look forward to working with you. Best regards, Billy Bryan
$18 USD in 7 days
4.4
4.4

Hello, how are you? I am excited to bid on this interesting project. I understand you need a senior Full-Stack Developer who can take ownership of features from user story to deployment. The main challenge is delivering clean, thoroughly tested code while making sound technical decisions independently. I have strong experience with React.js, Python FastAPI, and SQL databases, building production-ready dashboards and REST APIs. My approach is to deeply understand requirements, design appropriate solutions, write clean code with proper test coverage, and validate end-to-end before delivery. I focus on quality over speed and communicate clearly throughout. I am comfortable with minimal supervision and can explain my code without relying on AI tools. I am available to start immediately. Let me know your timeline and I can provide a more detailed estimate. Please let me know your thoughts. Looking forward, Opeyemi.
$30 USD in 1 day
4.4
4.4

Pflugerville, United States
Member since Aug 10, 2026
$15-25 USD / hour
₹12500-37500 INR
₹37500-75000 INR
₹1500-12500 INR
₹12500-37500 INR
₹12500-37500 INR
₹100-400 INR / hour
₹150000-250000 INR
$50-51 USD
₹1500-12500 INR
$30-250 USD
₹12500-37500 INR
₹1500-12500 INR
£1000-100000 GBP
min $50 USD / hour
$30-250 USD
₹12500-37500 INR
$1500-3000 USD
₹1250-2500 INR / hour
₹1500-12500 INR