Premium FastAPI Development ServicesFastAPI
Build production-ready APIs with FastAPI and Python 3.12. Get a fixed-price MVP delivered in 12 weeks.
IRPR builds premium FastAPI development services for clients who need high-performance, async-capable APIs. We use FastAPI with Pydantic, SQLAlchemy, and asyncpg to deliver APIs that handle thousands of requests per second.
Every project ships in 12 weeks with a fixed price between $80,000 and $250,000. Our FastAPI engineers build to compliance standards including HIPAA, PCI-DSS, and SOC 2, so you can go to market without security delays.
We work with CTOs who need a scalable API backbone, founders building a SaaS MVP with FastAPI, and fintech or healthcare teams that require certified data handling. Each buyer gets a dedicated project manager and senior developers.
Types of software we ship.
REST API Development
Structured endpoints with FastAPI, auto-generated OpenAPI docs, and input validation via Pydantic models. Includes Alembic for database migrations.
GraphQL API Development
Schema-first GraphQL APIs using Strawberry (Python) with FastAPI as the transport layer. Supports subscriptions and resolver caching.
Microservices Architecture
Decoupled services communicating via RabbitMQ or Kafka. Each service runs as a separate FastAPI instance inside Docker containers.
Real-time WebSocket APIs
Bi-directional WebSocket endpoints for live dashboards, chat, or telemetry. Built with FastAPI’s native WebSocket support and Redis pub/sub.
Async Background Task Systems
Task queues using Celery with Redis or RabbitMQ, triggered by FastAPI endpoints. Handles email delivery, data exports, and video processing.
API Gateway and Aggregation
A single FastAPI gateway that aggregates multiple downstream services, handles authentication, rate limiting, and request routing.
Data Ingestion Pipelines
High-throughput ingestion pipelines for IoT, logs, or ecommerce events. Uses FastAPI with AsyncPG and batch writes to TimescaleDB or ClickHouse.
Authentication and Authorization Services
OAuth2, JWT, or SSO solutions using FastAPI-dep injectable dependencies. Integrates with Auth0, Okta, or custom identity providers.
We build for every business type.
SaaS Platforms
Fintech
Healthcare / HealthTech
Ecommerce
Data / ML
Why Companies Choose IRPR for Premium FastAPI Development
Here is what our track record looks like.
IRPR has shipped over 200 products, and FastAPI is one of our most requested frameworks. Our senior engineers have built APIs for fintech, healthcare, and ecommerce clients that handle millions of requests per day. Each project starts with a clear Roadmap so you know exactly what ships and when.
We guarantee a 12-week timeline for your MVP. 98% of our projects finish on time and on budget. Every API we build is tested with pytest, monitored with Sentry, and deployed with CI/CD on GitHub Actions. You get full code ownership and a production-ready system.
The Difference: Generic Shop vs IRPR's Premium FastAPI Team
Not all FastAPI developers deliver the same result. Here is how we compare.
Generic dev shops often assign junior developers to save on cost. They bill by the hour, avoid fixed scopes, and rarely understand compliance. IRPR does the opposite.
We assign senior engineers only, charge a fixed price from the Roadmap, and guarantee delivery in 12 weeks. Our team includes experts in Python, FastAPI, and the compliance standards your industry requires.
- Hourly billing with no cap
- Junior developers learning on your time
- No fixed scope or deadline
- No compliance expertise (HIPAA/PCI)
- Code ownership unclear
- No dedicated project manager
- Fixed price locked in the Roadmap (week 2)
- Senior Python and FastAPI engineers only
- 12-week delivery guarantee
- HIPAA, PCI-DSS, SOC 2 ready
- Full code ownership from day one
- Dedicated PM and daily stand-ups
Our 4-Phase Process for Premium FastAPI Projects
Every project follows a repeatable process that removes guesswork.
We break every FastAPI project into four phases. Each phase has clear deliverables and a fixed timeline. You see progress every week and can adjust scope during the Roadmap phase.
After the Roadmap, we build in parallel sprints. Our QA team writes automated tests alongside development. The result is a production-ready API that passes compliance audits and scales with your users.
What Ships with Every Premium FastAPI Project
You get a complete, production-ready system. Not just code.
Every FastAPI project from IRPR includes everything you need to launch and maintain your API. We do not cut corners or leave you with a half-finished prototype.
Our deliverables are designed to hand over to your internal team or to run independently. You own all source code, infrastructure configs, and documentation from day one.
- Source code in your private GitHub repo
- Docker Compose setup for local development
- CI/CD pipeline with GitHub Actions
- OpenAPI (Swagger) documentation auto-generated
- Unit tests with pytest (80%+ coverage)
- Integration tests with httpx
- Error tracking with Sentry
- Database migrations with Alembic
- Production deployment config for AWS or GCP
- 30-day post-launch support and bug fixes
What we ship in this practice.
Real-time Data Pipeline for a Fintech Startup
Built a FastAPI pipeline that ingests 500K transactions per minute, performs fraud checks via a Redis-based rules engine, and routes to PostgreSQL. Reduced processing latency from 12 seconds to 800ms. Tech stack: FastAPI, Redis, asyncpg, Celery.
MVP for a SaaS Subscription Manager
Delivered a multi-tenant billing API with Stripe integration, plan management, and usage tracking. The client launched to 200 beta users in week 12. Tech stack: FastAPI, SQLAlchemy, Stripe, Docker.
HIPAA-Compliant Patient Portal API
Created a secure FastAPI backend for a digital health provider. Included FHIR-based EHR integrations, role-based access, and automatic audit logging. Passed HIPAA audit on first submission. Tech stack: FastAPI, PostgreSQL, OAuth2, AWS KMS.
Ecommerce Order Management Backend
Replaced a legacy PHP system with a FastAPI microservice handling 50K orders/day. Cut checkout time by 60% and increased payment success rate to 99.5%. Tech stack: FastAPI, RabbitMQ, MongoDB, Stripe.
ML Model Serving API for a Logistics Company
Built a FastAPI inference service for a route optimization model (ONNX). Handles 1K requests/second with sub-50ms latency. Enabled same-day delivery for 3 new cities. Tech stack: FastAPI, ONNX Runtime, Redis, Kubernetes.
Async Task Queue for Media Processing
Created a video transcoding pipeline using FastAPI + Celery. Handles 10K uploads/day, transcode to 4 formats, and stores in S3. Reduced processing time per video from 45 minutes to 8 minutes. Tech stack: FastAPI, Celery, FFmpeg, S3.
Why teams hire us.
Fixed price, not hourly
Every premium FastAPI project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
All our FastAPI developers have 7+ years of Python experience. You never get a junior or offshore engineer learning on your budget.
12-week delivery guarantee
We ship your MVP in 12 weeks or we work additional weeks at no cost. 98% of our projects finish on time.
Compliance ready
IRPR builds HIPAA, PCI-DSS, and SOC 2 compliant APIs. We handle encrypted data, audit logs, and secure authentication out of the box.
Full code ownership
You own every line of code, every migration, every config file. No licenses, no locked-in platforms, no hidden restrictions.
Dedicated project manager
You get a PM who runs daily stand-ups, updates your Jira board, and ensures the project stays on track. No disappearing act.
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.
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