Expert FastAPI Development PartnerDevelopment Partner
We build high-performance APIs with FastAPI and Python. Ship your MVP in 8-12 weeks with fixed pricing.
IRPR builds production-grade APIs and backend systems using FastAPI. We combine Python's async capabilities with FastAPI's automatic OpenAPI docs and Pydantic validation for reliable, documented endpoints.
We ship complete FastAPI projects in 8-12 weeks with fixed pricing from $80K to $250K. Our APIs are built with SQLAlchemy, Redis, Alembic migrations, and Docker containers. Compliance ready for HIPAA, PCI-DSS, and SOC 2.
We work with CTOs needing a scalable API backbone, product managers launching SaaS platforms that require fast REST or GraphQL endpoints, and founders building data-heavy applications that need async performance.
Types of software we ship.
REST API Development
Build RESTful APIs with FastAPI, automatic interactive docs via Swagger UI, and async endpoints for high concurrency.
GraphQL API Development
GraphQL APIs using Strawberry or Ariadne with FastAPI for flexible data queries and real-time subscriptions.
Microservices Backend
Design microservices with FastAPI, Docker Compose, and message brokers like RabbitMQ for scalable distributed systems.
Data API & ETL Pipelines
Data ingestion APIs and ETL pipelines using FastAPI, Pandas, and Celery for batch processing and real-time streams.
Real-Time API (WebSockets)
Real-time APIs with FastAPI WebSockets, Redis Pub/Sub, and async workers for live dashboards and notifications.
SaaS Backend Platform
Full SaaS backend with FastAPI, Stripe integration, user authentication (JWT/OAuth2), and multi-tenant database design.
AI/ML Model Serving API
Serve machine learning models with FastAPI, ONNX Runtime, and GPU acceleration for low-latency predictions.
Integration & Middleware API
Build integration APIs connecting third-party services (Salesforce, HubSpot, Stripe) using FastAPI and asynchronous HTTP clients.
We build for every business type.
SaaS platforms
Fintech
Healthcare
Ecommerce
Enterprise
Why FastAPI for Your Backend?
FastAPI is one of the fastest Python web frameworks for building APIs.
FastAPI uses Python async and await to handle thousands of concurrent connections with minimal overhead. It automatically generates OpenAPI documentation and validates data with Pydantic, reducing bugs by 40% compared to traditional Flask or Django REST frameworks.
IRPR chooses FastAPI for projects that demand high throughput, low latency, and clear documentation. We have used it in production systems handling 10,000+ requests per second with 99.9% uptime.
Generic Dev Shop vs IRPR
Not all FastAPI development is equal.
Many development shops bill by the hour and assign junior developers to your project. They skip automated testing and compliance, leaving you with slow delivery and unclear code ownership.
IRPR is different. We assign senior engineers, deliver on a fixed price, and include CI/CD, monitoring, and compliance from day one. You own everything we build.
- Hourly billing with no fixed price
- Junior developers learning on the job
- No compliance knowledge (HIPAA, PCI)
- Slow delivery with no roadmap
- No automated testing or CI/CD
- Code ownership unclear
- Fixed price from Roadmap phase
- Senior engineers only (10+ years)
- Built-in compliance for HIPAA, PCI, SOC 2
- 8-12 week delivery with clear milestones
- CI/CD on GitHub Actions, Sentry monitoring
- You own all source code
Our FastAPI Development Process
We follow a proven 4-phase process to ship your FastAPI project.
Every engagement starts with an Idea phase where we clarify your requirements and identify core API endpoints. Then we move to Roadmap, where we design the architecture and produce a fixed-price quote.
The Product phase is where we build the FastAPI backend, write tests, set up CI/CD, and deploy to staging. Finally, we Release to production, hand over code, and provide 30 days of support.
What Ships With Your FastAPI Project
Every FastAPI project includes these deliverables by default.
IRPR ensures you have everything you need to run and maintain your API after launch. No hidden extras.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Docker Compose configuration for local dev
- Automated API tests with pytest and httpx
- Sentry error tracking and performance monitoring
- PostgreSQL or Redis setup as needed
- API documentation (OpenAPI/Swagger)
- Deployment scripts for AWS or GCP
What we ship in this practice.
SaaS Subscription API
Built a multi-tenant FastAPI backend for a subscription analytics platform. Reduced API response time by 60% using async endpoints and Redis caching. Tech stack: FastAPI, PostgreSQL, Redis, Stripe, Docker.
Real-Time Dashboard Backend
Developed a real-time data streaming API with FastAPI WebSockets for a logistics tracking system. Handled 5,000 concurrent connections with 99.9% uptime. Tech stack: FastAPI, WebSockets, Redis Pub/Sub, TimescaleDB.
Healthcare Data Integration
Created HIPAA-compliant FastAPI endpoints to integrate EHR systems for a telemedicine startup. Reduced manual data entry by 8 hours per week per clinician. Tech stack: FastAPI, FHIR, PostgreSQL, Alembic.
Fintech Payment Gateway
Built a PCI-DSS compliant payment processing API with FastAPI. Achieved 200ms average response time and passed security audit on first attempt. Tech stack: FastAPI, Stripe Connect, Redis, Docker.
Ecommerce Product API
Designed a FastAPI-based product catalog and order management system for an ecommerce brand. Handled 1 million API calls per day with auto-scaling on AWS. Tech stack: FastAPI, Elasticsearch, PostgreSQL, Celery.
AI Model Serving API
Deployed a FastAPI service to serve a recommendation model with ONNX runtime. Achieved 50ms inference latency and supported 10,000 requests per minute. Tech stack: FastAPI, ONNX, Redis, Docker, Kubernetes.
Why teams hire us.
Fixed Price, Not Hourly
Every FastAPI project gets a fixed quote in the Roadmap phase. No hourly billing, no surprise invoices. You know the cost from week 2.
Senior Engineers Only
Our team averages 10+ years of experience. Every FastAPI developer has shipped Python backends for production systems handling millions of requests.
Compliance Built In
We build FastAPI APIs that meet HIPAA, PCI-DSS, and SOC 2 standards. We include encryption, audit logging, and access controls by default.
8-12 Week Delivery
We ship complete FastAPI backends in 8-12 weeks. Our process includes automated testing, CI/CD, and staging deployment before launch.
Full Code Ownership
You own all source code, documentation, and deployment scripts. No licensing fees, no vendor lock-in. Your team can take over immediately.
Proven Track Record
We have shipped 200+ products across 50 countries. 98% of our projects deliver on time and within budget.
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.