Premium FastAPI Development DevelopersFastAPI Development
Hire senior FastAPI developers who ship production-ready APIs in 8-12 weeks. Fixed pricing, no surprises.
IRPR builds premium FastAPI backends for APIs, microservices, and data-driven applications. We use FastAPI with Python 3.11, SQLAlchemy 2.0, Pydantic v2, and async SQL via asyncpg for peak performance.
A typical premium FastAPI development project ships in 8-12 weeks with a fixed price range of $80K-$250K. Every delivery includes CI/CD via GitHub Actions, automated testing with pytest, Docker containerization, and Sentry error tracking.
Our clients are SaaS founders needing scalable APIs, fintech startups requiring sub-millisecond latency, ecommerce platforms handling high request volumes, and healthcare applications demanding HIPAA-compliant backends.
Types of software we ship.
FastAPI API Gateway
Routes and rate-limits requests to multiple microservices. Integrates with Redis caching and Kong API gateway for enterprise traffic.
FastAPI Microservices Architecture
Decoupled service mesh with async messaging via RabbitMQ or Kafka. Each service runs in its own Docker container.
FastAPI Real-Time Dashboard Backend
WebSocket-powered dashboards streaming live metrics. Uses Redis Pub/Sub and FastAPI's WebSocket support for sub-second updates.
FastAPI File Upload Service
Handles chunked uploads, image resizing via Pillow, and S3 storage integration. Built with async streaming to avoid memory spikes.
FastAPI Payment Processing API
Stripe and PayPal integrations with idempotency keys, webhook verification, and PCI-DSS compliant tokenization.
FastAPI User Authentication Service
OAuth2, JWT, and passwordless login flows. Uses bcrypt hashing, rate limiting, and SQLAlchemy user models with session management.
FastAPI Data Ingestion Pipeline
Async ETL pipelines parsing JSON, CSV, or Parquet files. Integrates with Celery workers and PostgreSQL COPY for high throughput.
FastAPI WebSocket Server
Real-time bidirectional communication for chat, notifications, or live collaboration. Scales horizontally via Redis backplane and FastAPI's WebSocket manager.
We build for every business type.
SaaS platforms
fintech
ecommerce
healthcare
real estate
Why premium fastapi development developers matter
High-performance APIs require experienced developers who understand async Python and production infrastructure.
FastAPI delivers 2x to 10x faster request handling than Tornado or Flask when written correctly. But without proper async patterns and database connection pooling, you get bottlenecked I/O and slow responses. IRPR's premium fastapi development developers optimize every layer from Pydantic serialization to SQLAlchemy session management.
Over 200 shipped products prove our process works. Our premium fastapi development developers have delivered backends for fintech startups processing 50,000 transactions daily and healthcare platforms handling 1 million patient records. Every project ships with CI/CD, monitoring, and automated scaling.
The difference between generic and premium fastapi development
Not all developers build FastAPI backends the same way. Here is what separates IRPR from commodity shops.
Generic developers often treat FastAPI like Flask: synchronous endpoints, no type validation, and minimal testing. The result is slow APIs that break under load. Our premium fastapi development developers treat FastAPI as a first-class async framework and enforce patterns from day one.
IRPR ships production-ready backends with Pydantic schemas, automatic OpenAPI docs, and async database sessions. We containerize with Docker, push automated tests through GitHub Actions, and monitor via Sentry. You get a backend that scales without rewrites.
- Uses synchronous endpoints with blocking I/O
- No automated tests or coverage reports
- No CI/CD pipeline
- No Docker containerization
- Missing Pydantic validation on inputs
- Slow response times under 100 users
- Async-native code with SQLAlchemy 2.0 async sessions
- 100% test coverage with pytest and async fixtures
- CI/CD pipeline via GitHub Actions
- Dockerized with docker-compose and Dockerfile.template
- Pydantic v2 validation with custom validators
- Sub-millisecond response times under 10,000 concurrent users
How we build your premium fastapi development project
Our Idea-Roadmap-Product-Release framework ensures no surprises and a fixed price from week 1.
In the Idea phase (week 1), our premium fastapi development developers work with you to spec endpoints, data models, and performance requirements. You get a clear document showing every API route and expected latency.
The Roadmap phase (week 2) produces a fixed-price quote and a 8-12 week schedule. We define milestones, testing protocols, and deployment targets. No scope creep, no hidden costs.
What ships with every premium fastapi development engagement
Every deliverable is clearly defined from day one. No surprises at handoff.
IRPR's premium fastapi development developers treat code as a product. You get a complete, deployable backend with all the tooling needed to run in production.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Automated tests with pytest and coverage reports
- Docker Compose setup for local development
- API documentation with Swagger/OpenAPI
- Sentry error tracking integration
- Pre-commit hooks for code quality
- Deployment scripts for AWS ECS or Railway
- Postman collection for API testing
- Weekly progress reports with video demos
What we ship in this practice.
FastAPI payment gateway for a fintech startup
IRPR built a payment processing API handling 10,000 transactions per minute with 99.9% uptime. Tech stack: FastAPI, Stripe, PostgreSQL, Redis. Reduced manual reconciliation by 15 hours per week.
FastAPI real-time dashboard backend for a SaaS analytics platform
Delivered WebSocket-driven dashboards that stream 50,000 events per second. Used FastAPI, Redis Pub/Sub, and React hooks. Cut dashboard load time from 4 seconds to under 200ms.
FastAPI file upload and processing service for a media company
Built async chunked uploads handling 10GB video files with automatic thumbnail generation. Tech stack: FastAPI, S3, Celery, and Pillow. Processing time dropped from 5 minutes to 45 seconds.
FastAPI microservices for an ecommerce marketplace
Designed 6 microservices handling product search, checkout, and order fulfillment. Each service scaled independently. Tech stack: FastAPI, PostgreSQL, RabbitMQ. Achieved 99.99% uptime during Black Friday.
FastAPI patient data API for a telemedicine app
Created HIPAA-compliant API for patient records, appointment scheduling, and video visit integration. Used FastAPI, PostgreSQL with encryption at rest, and AWS KMS. Reduced API response time by 60%.
FastAPI IoT device management backend for a smart home company
Built async WebSocket server managing 100,000 concurrent device connections. Tech stack: FastAPI, Redis, MQTT bridge. Downtime reduced from 8 hours per month to zero.
Why teams hire us.
Fixed price, not hourly
Every premium fastapi development project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only (10+ years)
Our premium fastapi development developers average 12 years of backend experience. Every engineer has shipped at least 5 production FastAPI systems.
8-12 week MVPs, not 6-month projects
IRPR delivers a production-ready FastAPI backend in 8-12 weeks. We have shipped 200+ products on time, 98% of projects hit the original deadline.
Full code ownership, no lock-in
You own 100% of the code from day one. IRPR transfers all repos, documentation, and deployment scripts upon final payment.
99.9% uptime SLA on production
Every premium fastapi development project includes automated monitoring, alerting, and auto-scaling. We guarantee 99.9% uptime post-launch.
Dedicated project manager with weekly standups
You get a single point of contact who attends daily standups and provides weekly written updates. No ghosting, no lost emails.
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.