FastAPI is a modern, open-source, high-performance web framework used to develop a range of different API applications. Developed with a combination of Python and Starlette, the framework is designed to help developers easily create and maintain powerful applications using the latest technologies. With FastAPI, developers can quickly build production-ready APIs that can handle response times as low as a few milliseconds or less. Moreover, FastAPI is especially useful for creating solutions that require complex data processing and includes features such as interactive documentation with fast response time, asynchronous request data validation and easy integration with databases.

A FastAPI Developer is therefore an expert in creating powerful, robust APIs that are capable of meeting the requirements of even the most demanding solutions. With the help of a FastAPI Developer, clients can create fast, reliable applications quickly and easily. The developer makes sure that all aspects related to data processing and validation are taken care of and enables applications to utilize the latest technologies.

Here's some projects that our expert FastAPI Developer made real:

  • Our developer helped clients create secure login systems through Google Authentication
  • We created databases for complex data processing solutions
  • Another client enhanced their existing systems with APIs for mobile apps
  • We changed how customers interacted with websites and digital services through fast response times
  • We helped businesses integrate digital products with custom made APIs using MongoDB and NextJS

Whether you're an individual looking for a personal project or a small team looking for an experienced FastAPI Developer to work on a larger project, Freelancer.com has you covered. With experienced developers from all over the world, you can easily find the perfect match for your project needs. So why wait? Post your project on Freelancer.com today and get one step closer to finding the perfect developer to make your vision come true!

Conform celor 19,117 recenzii, clienții îi evaluează pe FastAPI Developers cu 4.9 din 5 stele.
Angajează FastAPI Developers

FastAPI is a modern, open-source, high-performance web framework used to develop a range of different API applications. Developed with a combination of Python and Starlette, the framework is designed to help developers easily create and maintain powerful applications using the latest technologies. With FastAPI, developers can quickly build production-ready APIs that can handle response times as low as a few milliseconds or less. Moreover, FastAPI is especially useful for creating solutions that require complex data processing and includes features such as interactive documentation with fast response time, asynchronous request data validation and easy integration with databases.

A FastAPI Developer is therefore an expert in creating powerful, robust APIs that are capable of meeting the requirements of even the most demanding solutions. With the help of a FastAPI Developer, clients can create fast, reliable applications quickly and easily. The developer makes sure that all aspects related to data processing and validation are taken care of and enables applications to utilize the latest technologies.

Here's some projects that our expert FastAPI Developer made real:

  • Our developer helped clients create secure login systems through Google Authentication
  • We created databases for complex data processing solutions
  • Another client enhanced their existing systems with APIs for mobile apps
  • We changed how customers interacted with websites and digital services through fast response times
  • We helped businesses integrate digital products with custom made APIs using MongoDB and NextJS

Whether you're an individual looking for a personal project or a small team looking for an experienced FastAPI Developer to work on a larger project, Freelancer.com has you covered. With experienced developers from all over the world, you can easily find the perfect match for your project needs. So why wait? Post your project on Freelancer.com today and get one step closer to finding the perfect developer to make your vision come true!

Conform celor 19,117 recenzii, clienții îi evaluează pe FastAPI Developers cu 4.9 din 5 stele.
Angajează FastAPI Developers

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    I need a solid Python build that blends a clean, browser-based interface with powerful data-scraping logic. The goal is a self-contained web application that can pull information from three distinct sources—websites, APIs, and internal databases—then present or export that data on demand. Here’s how I picture the flow: from the front end I choose the target (URL list, API endpoint, or DB table), set any parameters or credentials, and kick off the scrape. Behind the scenes your Python scripts handle the session management, parsing, rate-limiting, pagination, and error recovery. Results land in a single unified store—SQLite or Postgres is fine—and the UI lets me filter, download CSV/JSON, or trigger another run. Deliverables • Responsive web UI (Django,...

    $15 / hr Average bid
    $15 / hr Oferta medie
    15 oferte

    --- ### **AI Automation SaaS – Website-ready Architecture** #### 1️⃣ Frontend (Client Interface) * **Tech Stack:** React.js / Vue.js / HTML+CSS+JS * **Features:** * Chatbot interface for FAQs & customer support * Booking form (date/time picker + confirmation) * Lead capture form (name, email, phone) * Dashboard for viewing conversations, bookings, leads #### 2️⃣ Backend (Server + API) * **Tech Stack:** Node.js (Express) / Python (FastAPI / Django) * **Responsibilities:** * Handle API requests from frontend * Integrate with AI model (OpenAI / GPT API) * Store user interactions, bookings, leads in database * Send automated email/SMS notifications #### 3️⃣ Database * **Tech Stack:** PostgreSQL / MySQL / MongoDB * **Data Stored:** * User/client accounts ...

    $586 Average bid
    $586 Oferta medie
    38 oferte
    Python Code Property Graph Framework
    5 zile left
    Cont confirmat

    I need a self-contained Python package that wraps the Fraunhofer-AISEC Code Property Graph () and lets me create, inspect, and visualise CPGs through a clean web interface. Core features • Graph construction – given source files or repos in Python, JavaScript, Java, Golang and modern Next/React projects, the framework should spin up the underlying CPG tooling, parse the code and persist the resulting graph in a format that can be queried later (neo4j or similar is fine as long as it is documented). • Code analysis – expose Pythonic helper functions so I can write my own queries, run common vulnerability patterns, and export results as JSON/CSV. • Visualisation – through a lightweight web UI (Flask/FastAPI + Vue/React/etc.) I want to select a file o...

    $149 Average bid
    $149 Oferta medie
    68 oferte
    React Web App & API Build
    5 zile left
    Cont confirmat

    We are seeking an experienced React developer to build a complete login and registration module for our web application. This is a well-defined, fixed-scope project with detailed specifications and UI designs already prepared. Project Scope: This project focuses specifically on developing a login and registration system with both frontend and backend components. This is the initial phase of a larger application, so clean, scalable code is essential for future expansion. Technical Skills: - Strong proficiency in React.js and modern JavaScript (ES6+) - Experience building authentication systems (JWT, sessions, or OAuth) - Backend API development (Node.js/Express, Python/FastAPI, or similar) - Knowledge of secure password handling and user data protection - Experience with form validation...

    $210 Average bid
    $210 Oferta medie
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    AI-Based Monochrome Design Platform
    5 zile left
    Cont confirmat

    1. Core Features AI Auto-Fit & Scaling: Use computer vision to detect the uploaded shape’s boundaries. Automatically scale and position selected clipart or patterns to fit proportionally. Allow manual fine-tuning for advanced users. Clipart & Style Library: Categorized assets: wild animals, floral, scrollwork, western, borders. Vector-based for clean scaling and black-and-white output. Background Options: Solid fills, gradients, or textured patterns (still output in monochrome). Option to invert black/white for engraving or printing purposes. Black & White Output: Final render in high-resolution vector (SVG, EPS) and raster (PNG, JPG). 2. Monetization Model Tokens: Users buy tokens to unlock premium clipart, backgrounds, or higher-res exports. Subscriptions: Monthly pla...

    $3991 Average bid
    $3991 Oferta medie
    93 oferte

    Project Overview I am looking for a full-stack developer to fix and finalize the “Demo Mode” of an existing MVP codebase. The project is a construction management platform called BillMilli. It allows owners to validate 3D design updates, track construction readiness, and manage site capture requirements. Current Status:I have the full source code (developed over 2 months), but I am unable to get the full stack running locally to demonstrate it. The code includes a FastAPI backend, a React frontend, and an Expo mobile app. The Goal:Your primary job is to take the existing repository, debug the configuration/connection issues, and deliver a fully functional local demo. The project will be considered complete only when the system works as described below. Scope of Work & ...

    $517 Average bid
    $517 Oferta medie
    73 oferte

    Project Overview I am looking for a full-stack developer to fix and finalize the “Demo Mode” of an existing MVP codebase. The project is a construction management platform called BillMilli. It allows owners to validate 3D design updates, track construction readiness, and manage site capture requirements. Current Status:I have the full source code (developed over 2 months), but I am unable to get the full stack running locally to demonstrate it. The code includes a FastAPI backend, a React frontend, and an Expo mobile app. The Goal:Your primary job is to take the existing repository, debug the configuration/connection issues, and deliver a fully functional local demo. The project will be considered complete only when the system works as described below. Scope of Work & ...

    $483 Average bid
    $483 Oferta medie
    125 oferte

    I need a small web application that listens to my TradingView alerts, spots candlestick, trendline, and volume-based patterns in real time, and immediately pushes the corresponding buy/sell instructions to my Zerodha account through the Kite Connect API. A simple dashboard where I can map each alert to the exact symbol, quantity, and side (long or short) will be enough; I will handle all strategy logic on TradingView itself. Core flow I have in mind: • TradingView fires a webhook whenever one of the three pattern types is detected. • The web service receives the alert, validates it, and forwards an order request to Zerodha with the parameters I set in the dashboard. • Order status and any error messages must be written back to a lightweight log I can check on screen and...

    $250 Average bid
    $250 Oferta medie
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    3 zile left

    I’m building a horse-racing platform and need a purpose-built API that lets my application place Win, Place, and Show bets while constantly pulling real-time odds from the track feed. The API MUST BE FULLY COMPLIANT WITH BETFAIR The API MUST BE FULLY COMPLIANT WITH BETFAIR The API MUST BE FULLY COMPLIANT WITH BETFAIR The API MUST BE FULLY COMPLIANT WITH BETFAIR You must develop my systems and each one has to be accepted and fully tested by Betfair via them and their SANDBOX and you will only get paid when they have agreed and accepted your work. 1. You must give me a personal Guarantee to complete the work by the agreed time 2. You must give me a PERSONAL GUARANTEE THAT YOU WILL GIVE ME UNLIMITED REVISIONS FOR YOUR WORK SO YOU CANNOT SCAMM ME FOR YOUR POOR QUALIT...

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    We are building an AI-powered video editing app that turns raw footage into fully-edited short videos using: - Whisper (transcription) - FFmpeg (cuts, transitions, color tone, subtitles, audio mixing) - Style presets - Music and caption styles - Prompt-based editing logic **Goal:** Deliver a working MVP in 14 days. **Tech required:** - Python (FastAPI) OR Node.js - FFmpeg (must have expertise) - Whisper integration (local model) - Redis Queue (RQ / BullMQ) - Cloudinary (upload + storage) - React + Tailwind (frontend) - Docker + Deployment (Render/Vercel) **Deliverables:** - Backend pipeline (transcription → cuts → subtitles → transitions → color grading → music → export) - Frontend (upload → prompt → style → music → preview) - Job queue...

    $637 Average bid
    $637 Oferta medie
    25 oferte

    I’m building a web-based SaaS that lets school administrators press a single button and receive an optimised class timetable. The front-end is already planned in FlutterFlow and the back-end stack will live on Firebase, with a Python micro-service driving the scheduling logic. Here’s the workflow I need you to deliver: an administrator logs in, enters or imports teachers, subjects, rooms and time constraints, then triggers “Generate”. Your Python service (FastAPI, Flask or similar) takes those inputs, runs an optimisation routine, pushes the resulting period-by-period schedule back to Firestore and returns status updates to the FlutterFlow UI in real time. The first release focuses purely on Optimized schedule generation, so conflict resolution and predictive ana...

    $276 Average bid
    $276 Oferta medie
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    $183 Average bid
    $183 Oferta medie
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    2 zile left
    Cont confirmat

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    $481 Average bid
    $481 Oferta medie
    136 oferte

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    $313 Average bid
    $313 Oferta medie
    45 oferte

    I am looking Long term Freelancer on monthly work. ( 30 to 40 hours max per month ) I’m ready to move fast on a fully-featured employment marketplace that feels native everywhere. The front end must be a single Flutter code-base compiled for Android, iOS, Windows, macOS and Linux, so candidates and employers enjoy the same polished experience on any device. Core screens will include: • an employer flow to post and manage openings • an applicant flow to browse, apply and track status • secure authentication for both roles On the server side I need a Python service that continuously gathers fresh listings, enriches them with metadata and exposes everything through a clean, documented REST/JSON API. This means: • Web scraping of external job sites (respec...

    $174 Average bid
    $174 Oferta medie
    35 oferte

    TUYỂN FREELANCER FULL-STACK – Làm việc 1 ngày/tuần (Thứ 6) Hình thức: Freelancer / Part-time cố định Thời gian làm: Mỗi thứ 6 (cố định). Mô hình: Họp kiểm tra tiến độ và hỗ trợ kỹ thuật Sau bàn giao: Tiếp tục bảo trì hệ thống (1 ngày/tuần) Thù lao: 1.000.000 – 1.500.000 / buổi (4–6 triệu/tháng) Công ty cần tìm 1 freelancer có kinh nghiệm để hỗ trợ kiểm tra kỹ thuật trong quá trình lập trình hệ thống Web và tiếp tục bảo trì sau khi dự án được bàn giao. ________________________________________ 1. MÔ TẢ CÔNG VIỆC Giai đoạn code (quan trọng nhất): • Tham gia họp vào mỗi thứ 6 để: o Nắm tiến độ o Review ...

    $407 Average bid
    $407 Oferta medie
    10 oferte

    I need an MVP that reliably signs in to India’s Government-e-Marketplace (GeM), navigates the tender section, and extracts every newly published tender that matches a few simple search filters. The run has to survive GeM’s multifactor login, pausing for my one-time password before it resumes. Once logged in, the robot should download each tender PDF, run OCR so all text becomes searchable, push both the raw file and the extracted JSON to an S3 bucket, and log every step so the entire flow is auditable later. The data will ultimately feed client-facing reports, so accuracy and repeatability are a must. Stack requirements • Playwright is non-negotiable for the browser automation • Python for the backend worker and API endpoints • Tesseract, AWS Textract, or an...

    $614 Average bid
    $614 Oferta medie
    15 oferte

    We are building a lightweight MVP to detect potholes & road defects from regular mobile-mounted videos (similar to RoadMetrics). The system will be used by delivery-partners (Zomato/Swiggy-style) who automatically capture road conditions during rides. Scope of Work We need an AI/ML + backend developer to build: 1. AI / Computer Vision Model Detect potholes, cracks, rough patches from dashboard-style video (1080p/720p) You can use YOLOv8/YOLOv11/Detectron2/RT-DETR or any optimized model Output required: Pothole bounding boxes Severity score GPS tag (from metadata or manual input) JSON summary 2. Backend + API Simple Python API (FastAPI preferred) Accepts uploaded videos Returns processed JSON + snapshot images Store data in lightweight DB (SQLite or Firebase) 3. Simple D...

    $1145 Average bid
    $1145 Oferta medie
    49 oferte

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    $4520 Average bid
    $4520 Oferta medie
    77 oferte

    We’re building a trading and market-data platform that streams live prices across Indian equities, major forex pairs, and top crypto exchanges. We’re looking for a backend engineer who can design scalable services and work confidently with high-volume, real-time data. You’ll work with Python 3.x (asyncio, threading, multiprocessing) across Django and FastAPI, building APIs over HTTP and WebSockets. You’ll integrate live market feeds and collaborate closely with the frontend team to ship features smoothly and consistently. Our data layer uses PostgreSQL (TimescaleDB) for time-series workloads and RedisTimeSeries for fast in-memory operations, caching, and pub/sub pipelines. Everything runs in Docker on Linux, deployed across AWS and DigitalOcean—solid cloud e...

    $12 / hr Average bid
    $12 / hr Oferta medie
    26 oferte

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    $308 Average bid
    $308 Oferta medie
    45 oferte

    We’re creating a new SaaS platform and need a senior full-stack developer to help build the MVP from scratch. Clear feature roadmap. Straightforward web app build. 40 hours per week preferred. Hourly contract. Responsibilities: Build frontend (React/) Build backend API (Node.js or Python) Set up background job processing Integrate with external APIs Build user accounts + auth Build Stripe subscription + credit system Set up file storage (S3/R2) Build user dashboard + job history Deliver clean, reliable code Requirements 5+ years full-stack experience Strong React/ Strong Node.js or Python Experience building SaaS products Experience integrating APIs Experience with async job queues Experience with cloud storage (S3/R2, etc.) Experience with Stripe billing Strong ...

    $35 / hr Average bid
    $35 / hr Oferta medie
    293 oferte

    I’m ready to turn my concept for a patient-data management app into a fully functional healthcare solution. The core goal is to streamline how clinics and hospitals capture, store, and retrieve patient information while keeping every record secure and compliant with industry standards. Here’s what I’m looking for you to handle from end to end: • Design an intuitive, multilingual interface that makes registration, charting, and record lookup effortless for medical staff. • Build a scalable backend—cloud, on-prem, or hybrid—capable of handling thousands of concurrent records without lag. • Implement robust data-security measures (role-based access, AES-256 at rest, SSL/TLS in transit, audit trails) so we meet local health-data regulations. ...

    $19 / hr Average bid
    $19 / hr Oferta medie
    71 oferte

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    $7 / hr Average bid
    $7 / hr Oferta medie
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