FastAPI Development TeamDevelopment Team
We build production-grade APIs with FastAPI in 8-12 weeks. Fixed pricing, senior engineers, 200+ products shipped.
IRPR builds production-grade APIs using FastAPI and Python. We use Pydantic for data validation, SQLAlchemy for ORM, and async endpoints for high throughput.
We deliver a complete API in 12-14 weeks for between $80,000 and $250,000. Every project includes automated tests, CI/CD pipelines, and API documentation via OpenAPI. Our APIs meet PCI-DSS and HIPAA compliance when required.
Startups use us to build a scalable MVP and validate their market. Mid-market companies replace legacy SOAP APIs with modern REST/GraphQL. Enterprise teams build internal microservices with strict performance SLAs.
Types of software we ship.
REST API backend
Standard CRUD endpoints with FastAPI, Pydantic schemas, and PostgreSQL. Includes pagination, filtering, and role-based access.
GraphQL API server
GraphQL wrapper using Strawberry or Ariadne for flexible data querying. Integrates with existing databases and caches.
Real-time WebSocket backend
Async WebSocket endpoints for live notifications, chat, or streaming data. Uses Redis pub/sub for scaling.
Data ingestion pipeline
FastAPI endpoints for ingesting JSON, CSV, or Parquet files. Validates data with Pydantic and loads into ClickHouse or Snowflake.
Microservice gateway
API gateway routing requests to internal services. Implements authentication, rate limiting, and request logging.
Event-driven message queue
Async producers and consumers for RabbitMQ or Kafka. Processes events like order confirmations or user signups.
File processing API
FastAPI endpoints for uploading and processing images, PDFs, or videos. Uses Celery for background tasks and S3 for storage.
AI model serving endpoint
Wraps ML models (PyTorch, TensorFlow) in FastAPI for inference. Supports batching and model versioning.
We build for every business type.
SaaS platforms
Fintech
Healthcare
Ecommerce
Logistics
Why choose IRPR for FastAPI development
We deliver production-ready FastAPI backends on time and on budget.
Our team has shipped over 200 products with FastAPI and Python. Each project follows a strict process that eliminates scope creep.
We write automated tests for every endpoint and deploy with zero-downtime. Our clients see 99.9% uptime from day one.
IRPR vs generic dev shops
Not all development teams deliver the same quality.
Generic shops often start coding without a detailed specification. This leads to rework, missed deadlines, and budget overruns.
IRPR defines every endpoint, data model, and performance target in the Roadmap phase before we write a single line of code.
- unclear requirements from the start
- cost overruns up to 50%
- test coverage below 30%
- no CI/CD pipeline
- manual deployments with downtime
- minimal or no documentation
- clear scope in 2-week Discovery phase
- fixed price from week 2
- 95%+ test coverage on all endpoints
- automated CI/CD on GitHub Actions
- zero-downtime deployments with Docker
- auto-generated OpenAPI docs
Our FastAPI development process
We follow a structured 4-phase approach that eliminates guesswork.
Every project starts with a Discovery sprint where we map out all API endpoints, data models, and performance targets. This phase takes exactly 2 weeks.
After Discovery, we deliver a fixed-price Roadmap document. The Build phase runs 8-12 weeks, and we ship a production-ready API at the end.
What ships with every FastAPI project
Our standard checklist ensures you get everything needed to run in production.
- Source code in private GitHub repo
- API documentation via OpenAPI (Swagger UI)
- Automated test suite with >95% coverage
- CI/CD pipeline on GitHub Actions
- Docker container with docker-compose
- PostgreSQL database schema migrations
- Sentry error monitoring integration
- Load test report with JMeter
- Deployment runbook for ops team
- 30 days of post-launch support
What we ship in this practice.
High-volume payment processing API
We rebuilt a fintech's legacy API using FastAPI. The new system handles 5,000 requests per second with 99.99% uptime. Tech stack: FastAPI, PostgreSQL, Redis, Stripe.
Real-time patient monitoring dashboard
A healthcare startup needed a WebSocket backend for live vitals. We built an async FastAPI server that streams data from medical devices to the frontend. Reduced latency from 2 seconds to 50ms. Tech stack: FastAPI, WebSockets, MongoDB, AWS IoT.
Ecommerce product search API
We developed a search microservice for an online retailer. The FastAPI backend integrates Elasticsearch and returns results in under 100ms. Conversion rate increased by 15%. Tech stack: FastAPI, Elasticsearch, Redis, Docker.
Internal microservice for logistics
A logistics company needed a microservice to track shipments across 200 carriers. We built a FastAPI gateway that aggregates data from multiple APIs. It reduced manual tracking time by 20 hours per week. Tech stack: FastAPI, RabbitMQ, PostgreSQL, Kubernetes.
AI model serving endpoint
We wrapped a machine learning model in a FastAPI endpoint for a SaaS company. The API processes 1,000 predictions per second with Pydantic validation. Tech stack: FastAPI, TensorFlow, Gunicorn, AWS ECS.
Real-time collaboration platform
A media startup needed a WebSocket backend for live document editing. We built a FastAPI server using async WebSockets. It supports 10,000 concurrent connections. Tech stack: FastAPI, WebSockets, Redis, Nginx.
Why teams hire us.
Senior engineers only
Every IRPR engineer has 8+ years of experience building APIs with Python and FastAPI. Your project is never staffed with juniors or interns.
Fixed price from week 2
After the Discovery phase, we give you a fixed price for the entire project. No hourly billing, no surprise invoices, no scope creep charges.
Production-ready in 12 weeks
Our average MVP timeline is 8-12 weeks. We ship a fully tested, documented, and deployed API that is ready for production traffic.
Full code ownership
You own every line of code we write. We deliver the source code in your private GitHub repo with no licensing restrictions.
HIPAA and PCI compliant
We build FastAPI backends that meet HIPAA for healthcare and PCI-DSS for fintech. We implement encryption, access controls, and audit logging.
30-day post-launch support
After release, we monitor the API, fix any issues, and provide documentation for your team. We are on standby for 30 days.
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.