Premium FastAPI Development PartnerFastAPI Development
We build high-performance FastAPI backends that ship in 8-12 weeks. 200+ products launched, fixed pricing, senior engineers only.
IRPR is a premium FastAPI development partner. We use Python 3.12, SQLAlchemy 2.0, Pydantic v2, and async PostgreSQL to build production-grade APIs. Every backend includes OpenAPI documentation, automated tests, and CI/CD pipelines.
We ship a complete FastAPI backend in 8-12 weeks. Pricing is fixed and ranges from $80K to $250K. All projects include HIPAA, PCI-DSS, or SOC 2 compliance if needed. You get source code ownership and a 1-year warranty.
Founders hire us when they need a scalable backend fast. CTOs hire us to replace a legacy Django or Flask API. Product owners hire us to build a customer-facing API with 99.9% uptime. Enterprise teams hire us to modernize their Python stack.
Types of software we ship.
REST API
Full REST endpoints with FastAPI, Pydantic validation, and PostgreSQL. Async routing and background tasks included.
GraphQL API
GraphQL backend using Strawberry with FastAPI. Real-time subscriptions, query optimization, and schema stitching.
Microservices
Distributed system of FastAPI services. Uses Kafka or RabbitMQ for async messaging and Docker Compose for local dev.
Real-time API
WebSocket support in FastAPI for live data streaming. Used for chat, notifications, and live dashboards.
SaaS Backend
Multi-tenant FastAPI backend with Stripe integration, user management, and role-based access control.
Ecommerce API
FastAPI backend for product catalogs, cart, checkout, and payment processing. Handles 10K+ requests per second.
AI/ML API
FastAPI serving ML models via ONNX or TensorFlow. Includes model versioning, batching, and async inference.
Webhook Server
FastAPI server for processing webhooks from Stripe, GitHub, or Twilio. Idempotency, retry logic, and logging included.
We build for every business type.
SaaS companies
Fintech firms
Healthcare organizations
Ecommerce brands
Enterprise teams
Why choose a premium FastAPI development partner
IRPR delivers production-grade FastAPI backends with measurable outcomes.
FastAPI is Python's fastest web framework, handling 10x more requests per second than Flask. But building a production-ready API takes more than a weekend tutorial. You need async workers, connection pooling, rate limiting, and monitoring. IRPR handles all of that out of the box.
We have shipped 200+ products across 50+ countries. Every backend uses Python 3.12, SQLAlchemy 2.0, and async PostgreSQL. We include Sentry error tracking, Prometheus metrics, and a full CI/CD pipeline on GitHub Actions. Your team gets a running backend with OpenAPI docs in 8-12 weeks.
The difference between IRPR and a generic FastAPI shop
Most dev shops write FastAPI code that works locally. IRPR ships backends that survive 10 years in production.
A generic shop sends you a GitHub repo with basic CRUD endpoints and a single Dockerfile. They use Flask-style sync code in FastAPI, ignore async patterns, and skip database migrations. Three months later you get 500 errors under load and no one knows how to fix it.
IRPR writes production-grade FastAPI. Every project gets async SQLAlchemy sessions, Pydantic v2 validation with custom error handling, Alembic migrations, Celery for background tasks, and a full monitoring stack with Sentry, Prometheus, and Grafana. Your team gets code they can deploy and extend.
- Sync code in FastAPI, loses async benefits
- No SQLAlchemy async sessions
- Basic Dockerfile, no CI/CD pipeline
- No monitoring or error tracking
- No Alembic migrations included
- Delivers a repo, not a running backend
- Async SQLAlchemy 2.0 with connection pooling
- Pydantic v2 validation with custom errors
- GitHub Actions CI/CD with auto-deploy
- Sentry + Prometheus + Grafana monitoring
- Alembic migrations for schema changes
- Running backend on AWS/GCP with 99.9% uptime
How IRPR builds your premium FastAPI backend
We follow a 4-phase process that delivers a production-ready FastAPI API in 8-12 weeks.
Each phase has a fixed scope, timeline, and price. You see working code every week. No surprises.
IRPR assigns 2-3 senior engineers to your project. They have an average of 10 years of Python experience. You get daily updates and a demo every sprint.
What you get with IRPR as your premium FastAPI development partner
Every project ships with these deliverables out of the box.
No hidden costs. No open-source licensing traps. You own every line of code from day one.
- Source code in your GitHub repo
- CI/CD pipeline on GitHub Actions
- Docker Compose for local development
- Sentry error tracking
- Prometheus + Grafana metrics
- Alembic database migrations
- OpenAPI documentation at /docs
- Stripe payment integration (if needed)
- 1-year bug fix warranty
- Post-launch architecture review call
What we ship in this practice.
Multi-tenant SaaS backend
We built a FastAPI backend for a B2B SaaS platform. It handles 50,000 daily API requests across 200 tenants. Uses SQLAlchemy with async sessions and Stripe for billing. Tech stack: FastAPI, PostgreSQL, Redis, Celery, Stripe.
Real-time data pipeline API
We built a FastAPI application that ingests 10,000 events per second from IoT devices. It processes and stores data using Kafka and async PostgreSQL. Tech stack: FastAPI, Kafka, PostgreSQL, Docker.
HIPAA-compliant patient portal
We developed a FastAPI backend for a telemedicine platform. It has role-based access, audit logging, and encrypted data storage. Passed HIPAA audit in week 10. Tech stack: FastAPI, PostgreSQL, Twilio, AWS KMS.
Ecommerce product recommendation API
We built a FastAPI service that serves personalized product recommendations. It handles 10,000 requests per second with 50ms response times. Tech stack: FastAPI, Redis, PostgreSQL, ONNX runtime.
Payment processing microservice
We created a FastAPI microservice for a fintech startup. It handles payment authorizations, refunds, and chargebacks with PCI-DSS compliance. Tech stack: FastAPI, PostgreSQL, Stripe, MongoDB.
Learning management system API
We built a FastAPI backend for an EdTech platform. It serves 1 million API requests daily and integrates with Canvas via LTI 1.3. Tech stack: FastAPI, PostgreSQL, Redis, Celery.
Why teams hire us.
Fixed price, not hourly
Every FastAPI project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the cost before we write a line of code.
Senior engineers only
Our team averages 10+ years of Python experience. Every engineer has shipped at least 5 FastAPI projects to production. No junior developers, no offshore outsourcing.
Production-grade from week 1
We don't write prototype code. From the first commit, we use async SQLAlchemy, Pydantic v2, Alembic migrations, and a full CI/CD pipeline. Your backend is ready for production in 8-12 weeks.
Compliance built in
We have shipped FastAPI backends for healthcare (HIPAA), finance (PCI-DSS), and SaaS (SOC 2). Compliance is baked into the architecture, not bolted on after launch.
You own the code
IRPR never claims intellectual property. You get full source code in your GitHub repo. No licensing fees, no hidden terms. You can take the code and run it anywhere.
Post-launch support for 1 year
Every project includes a 1-year bug fix warranty. We monitor your backend with Sentry and Prometheus and patch issues within 24 hours. No extra cost.
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.