Experienced FastAPI Development CompanyDevelopment Company
We build high-performance APIs with FastAPI. Get a production-ready MVP in 8-12 weeks.
IRPR is an experienced FastAPI development company that builds high-performance APIs, microservices, and data pipelines. We use FastAPI with Pydantic for validation, SQLAlchemy for ORM, and async workers for concurrency.
We ship production-ready FastAPI backends in 8-12 weeks with fixed pricing from $80K to $250K. Every project meets compliance standards including HIPAA, PCI-DSS, and SOC 2.
CTOs at SaaS startups hire us to build scalable API backends. Engineering leads at fintech companies choose us for real-time transaction APIs. Data engineers at healthcare organizations trust us for HIPAA-compliant data pipelines. Product managers at ecommerce brands use us for high-throughput order processing APIs.
Types of software we ship.
RESTful API Backend
Build REST APIs with FastAPI for web and mobile apps. Includes auto-generated docs, OAuth2, and rate limiting.
Real-time Data Streaming API
Stream live data with FastAPI and WebSockets. Handles 100K+ concurrent connections with async I/O.
Machine Learning Model Serving API
Deploy ML models as FastAPI endpoints. Uses ONNX or TensorFlow Serving for low-latency inference.
Microservices Orchestration
Orchestrate microservices with FastAPI and Docker. Implements service discovery and circuit breakers.
Async Web Scraper
Build high-speed web scrapers with FastAPI and httpx. Processes 10K+ pages per minute with async concurrency.
API Gateway
Create a unified API gateway with FastAPI. Routes requests, handles authentication, and aggregates responses.
Event-Driven Architecture
Implement event-driven systems with FastAPI and Kafka. Processes events in real-time with idempotency.
GraphQL API (Strawberry)
Build GraphQL APIs using Strawberry with FastAPI. Supports subscriptions, batching, and caching.
We build for every business type.
SaaS companies
Fintech companies
Healthcare organizations
Ecommerce brands
Logistics and supply chain
Why choose an experienced FastAPI development company?
IRPR has shipped 200+ products using FastAPI and Python.
FastAPI is a modern Python web framework that offers high performance and automatic validation. An experienced team ensures your API is built with best practices for security, scalability, and maintainability.
We use FastAPI with async SQLAlchemy, Redis caching, and deployment on AWS ECS with auto-scaling. Our APIs handle thousands of requests per second with 99.9% uptime.
The difference between generic dev shops and IRPR
Not all FastAPI developers deliver the same quality.
Generic dev shops often use outdated patterns and cut corners on testing. They charge hourly and rarely meet deadlines.
IRPR uses a fixed-price model with a detailed Roadmap phase. We assign senior engineers only, and every project includes CI/CD, monitoring, and documentation.
- Charges by the hour with no fixed scope
- Assigns junior developers with limited FastAPI experience
- No automated testing or CI/CD pipeline
- Delivers code without documentation
- No post-launch support or monitoring
- Often misses deadlines and exceeds budget
- Fixed price with scope defined in Roadmap phase
- Senior engineers with 5+ years of Python and FastAPI experience
- Automated testing with pytest and CI/CD on GitHub Actions
- Comprehensive API documentation with OpenAPI
- Sentry error tracking and Datadog monitoring included
- 98% on-time delivery with transparent weekly updates
How we build your FastAPI project in 4 phases
Our process from idea to production is structured and predictable.
We start with a 2-week Roadmap phase to define scope, architecture, and timeline. You get a fixed price and a detailed plan before any development begins.
Development happens in 2-week sprints with weekly demos. We ship a production-ready MVP in 8-12 weeks.
What ships with every FastAPI project
Every delivery includes the following by default.
We don't just hand over code. You get a complete production-ready system with monitoring, documentation, and deployment scripts.
All source code is in your repository from day one. You own everything.
- Source code in your private GitHub or GitLab repo
- CI/CD pipeline with GitHub Actions or GitLab CI
- Automated test suite with pytest and 90%+ coverage
- OpenAPI documentation auto-generated by FastAPI
- Docker containers for local and production deployment
- Infrastructure as code with Terraform or CloudFormation
- Sentry error tracking and Datadog performance monitoring
- Post-launch support for 30 days
- Architecture diagram and developer onboarding guide
- Load testing results and performance benchmarks
What we ship in this practice.
Real-time fraud detection API for fintech
Built a FastAPI service that processes 500 transactions per second. Uses Redis for caching and Kafka for event streaming. Reduced false positives by 40% and cut response time to under 50ms.
HIPAA-compliant patient data API for telemedicine
Developed a FastAPI backend for a telemedicine platform handling 10,000 patient records. Uses Pydantic for validation and encryption at rest. Achieved HIPAA compliance and passed audit in 6 weeks.
High-throughput order processing API for ecommerce
Created an order processing API with FastAPI and Celery for async tasks. Handles 1,000 orders per minute with 99.99% uptime. Integrated with Stripe and Shopify APIs.
ML model serving API for SaaS analytics
Deployed a FastAPI endpoint serving a recommendation model using ONNX. Achieves 10ms inference time and handles 10,000 requests per second. Integrated with PostgreSQL for user data.
Real-time logistics tracking API
Built a FastAPI WebSocket API for real-time GPS tracking of 5,000 vehicles. Uses PostgreSQL with PostGIS for geospatial queries. Reduced latency to under 100ms.
GraphQL API for media content platform
Developed a GraphQL API using Strawberry with FastAPI for a media platform. Supports subscriptions for live updates. Handles 50,000 concurrent users with auto-scaling on AWS.
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.
Senior engineers only
All our developers have 5+ years of Python experience and deep FastAPI expertise. No juniors, no outsourcing, no code quality issues.
8-12 week MVP delivery
We ship a production-ready FastAPI backend in 8-12 weeks. You get a working product with CI/CD, monitoring, and documentation.
Full code ownership
You own all source code and infrastructure from day one. We never lock you into proprietary systems or licenses.
2-week kickoff
We can start your project within 2 weeks of signing. The Roadmap phase takes just 2 weeks to define scope and architecture.
Post-launch support included
Every project includes 30 days of post-launch support with bug fixes and performance tuning. We also offer ongoing maintenance packages.
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.