Expert FastAPI Development StudioFastAPI Development
We build production-grade FastAPI backends in 8-12 weeks. Senior engineers, fixed pricing, no surprises.
IRPR is an expert FastAPI development studio. We build high-performance REST and GraphQL APIs using FastAPI, Pydantic v2, SQLAlchemy 2.0, and async PostgreSQL. Every project starts with a 2-week Roadmap phase to define endpoints, data models, and deployment architecture.
We ship MVPs in 8-12 weeks with fixed pricing starting at $80K. Our team handles everything from async task queues with Celery and Redis to containerized deployments on AWS ECS or Google Cloud Run. We also implement OpenAPI documentation, JWT auth, and rate limiting out of the box.
Clients who hire IRPR include CTOs at SaaS startups needing a scalable backend, founders building data-intensive platforms, healthcare companies requiring HIPAA-compliant APIs, and fintech teams that need PCI-DSS ready endpoints.
Types of software we ship.
FastAPI REST API Development
Build production REST APIs with async endpoints, Pydantic validation, and automatic OpenAPI docs. Includes JWT auth and rate limiting.
FastAPI Microservices Architecture
Deploy independent FastAPI services with message brokers like RabbitMQ or Kafka. Each service scales independently on Kubernetes.
FastAPI GraphQL API Development
Expose GraphQL endpoints using Strawberry or Ariadne on top of FastAPI. Supports subscriptions, batched queries, and federation.
FastAPI + SQLAlchemy Backend
Build relational data backends with SQLAlchemy 2.0 async sessions, Alembic migrations, and PostgreSQL. Includes read replicas.
FastAPI + MongoDB Backend
Use Beanie or Motor for async MongoDB operations with FastAPI. Supports aggregation pipelines, geospatial queries, and change streams.
FastAPI + Celery Task Queue
Offload long-running jobs to Celery workers with Redis or RabbitMQ. Includes retry logic, scheduled tasks, and progress tracking.
FastAPI Real-Time WebSocket Server
Build WebSocket endpoints in FastAPI for live dashboards, chat, and real-time notifications. Supports connection manager and room-based broadcasting.
FastAPI AI/ML Inference API
Serve machine learning models via FastAPI with async inference, batching, and model versioning. Integrates with TensorFlow Serving or ONNX Runtime.
We build for every business type.
SaaS and startups
Healthcare and life sciences
Fintech and payments
Ecommerce and retail
Media and content
Why choose an expert FastAPI development studio
IRPR has shipped 200+ products using FastAPI since version 0.1. We know the framework inside out.
FastAPI is the fastest growing Python web framework in 2024, with over 70K GitHub stars and 30M monthly downloads. Its async-first design handles 10,000+ requests per second on a single instance. But building production-grade FastAPI requires deep knowledge of async patterns, database connection pooling, and deployment strategies.
IRPR uses FastAPI for every new Python backend project. We have built APIs for companies in healthcare, fintech, and ecommerce. Our team writes tests for every endpoint, sets up CI/CD with GitHub Actions, and deploys to AWS with auto-scaling. We also benchmark every API with Locust to ensure sub-100ms response times under load.
Generic dev shop vs expert FastAPI studio
Not all Python shops know FastAPI. Here is the difference between a generic agency and IRPR.
Generic agencies often use Django or Flask because their team does not know FastAPI. They treat FastAPI as a drop-in replacement, missing async optimizations and Pydantic v2 features. This leads to slow endpoints and hard-to-maintain code.
IRPR is an expert FastAPI development studio. Every engineer on our team has built at least 5 production FastAPI projects. We use FastAPI-specific patterns like dependency injection, background tasks, and lifespan events. We also generate OpenAPI 3.1 specs automatically and run contract tests with Pact.
- Uses Django or Flask, not FastAPI
- No async endpoint optimization
- Manual OpenAPI docs generation
- No dependency injection patterns
- Slow response times over 500ms
- No built-in rate limiting or auth
- FastAPI native, every project
- Async endpoints with connection pooling
- Auto-generated OpenAPI 3.1 specs
- FastAPI dependency injection used throughout
- Sub-100ms response times under load
- JWT auth, rate limiting, and CORS included
Our FastAPI development process
We follow a 4-phase process to ship your FastAPI backend on time and on budget.
Every project starts with a 2-week Roadmap phase. We define all API endpoints, data models, authentication flows, and deployment architecture. You get a fixed price quote at the end of this phase.
Then we build your MVP in 8-12 weeks. Each sprint delivers working endpoints with tests, documentation, and infrastructure as code. We deploy to staging after every sprint for your feedback.
What ships with your FastAPI backend
Every FastAPI project from IRPR includes these deliverables by default.
We do not just hand over code. You get a fully production-ready backend with monitoring, documentation, and infrastructure. Everything is in your GitHub repository from day one.
- Source code in your GitHub repository
- CI/CD pipeline with GitHub Actions
- Docker Compose for local development
- Terraform or Pulumi for cloud infrastructure
- OpenAPI 3.1 documentation
- JWT authentication with refresh tokens
- Rate limiting with slowapi
- Sentry error tracking
- Locust load test scripts
- Postman collection for all endpoints
What we ship in this practice.
SaaS analytics platform backend
Built a multi-tenant FastAPI backend for a SaaS analytics startup. Handles 50,000 events per second using async PostgreSQL and Redis. Reduced query latency by 60% compared to their previous Django setup. Tech stack: FastAPI, SQLAlchemy 2.0, PostgreSQL, Redis, Celery.
Telehealth API with HIPAA compliance
Developed a HIPAA-compliant FastAPI backend for a telehealth company. Includes patient data encryption at rest and in transit, audit logs, and role-based access. Passed HIPAA audit on first submission. Tech stack: FastAPI, Pydantic v2, PostgreSQL, AWS KMS.
Payment gateway integration API
Created a PCI-DSS compliant FastAPI backend for a fintech startup. Integrates with Stripe Connect and Plaid for payment processing and bank verification. Handles 10,000 transactions per day with 99.99% uptime. Tech stack: FastAPI, Stripe SDK, Plaid SDK, PostgreSQL, Redis.
Real-time inventory management system
Built a FastAPI WebSocket backend for a retail chain with 200 stores. Provides real-time inventory updates across all locations using async WebSocket connections. Reduced stockouts by 35%. Tech stack: FastAPI, WebSocket, PostgreSQL, Redis Pub/Sub.
Content recommendation engine API
Developed a FastAPI backend for a media company serving 5 million monthly users. Uses collaborative filtering and content-based recommendations served via async endpoints. Increased user engagement by 22%. Tech stack: FastAPI, TensorFlow Serving, PostgreSQL, Redis.
Real estate MLS data API
Built a FastAPI backend for a real estate platform that aggregates MLS data from 50+ sources. Uses async scraping and Celery for data normalization. Reduced data refresh time from 4 hours to 15 minutes. Tech stack: FastAPI, Celery, PostgreSQL, Elasticsearch.
Why teams hire us.
Fixed price, not hourly
Every FastAPI project gets a fixed quote after the 2-week Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges. You know the total cost before we write a single line of code.
Senior FastAPI engineers only
Every engineer at IRPR has built at least 5 production FastAPI projects. We do not hire juniors or outsource. Our team average is 10+ years of Python experience and 4+ years with FastAPI.
Production-ready from day one
Your FastAPI backend ships with CI/CD, Docker, Terraform, Sentry monitoring, and load test scripts. No need to hire a DevOps engineer after us. We set up everything for production deployment.
HIPAA and PCI-DSS compliance built in
We have built FastAPI backends for healthcare and fintech clients. We implement encryption, audit logs, access controls, and compliance documentation. Our APIs pass HIPAA and PCI-DSS audits.
8-12 week MVP delivery
We ship a working FastAPI backend in 8-12 weeks. Not a prototype, but a production-ready API with tests, docs, and infrastructure. You can launch to customers immediately after handover.
Full code ownership
You own all source code, infrastructure scripts, and documentation. No proprietary frameworks, no locked-in services. You can take the code to any team after we finish.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.