Premium FastAPI Development FirmDevelopment Firm
We build high-performance APIs with FastAPI and Python. IRPR ships scalable, production-ready backends in 8-12 weeks.
IRPR is a premium FastAPI development firm. We build high-performance backends using FastAPI, Python 3.11, Pydantic, SQLAlchemy, and PostgreSQL. Every API is async-native, automatically documented via OpenAPI, and optimized for 10K+ requests per second.
We deliver production-ready MVP backends in 8-12 weeks with fixed pricing between $80K and $250K. All code ships with CI/CD pipelines, automated tests, and Docker/Kubernetes configs. Our teams hold SOC 2, HIPAA, and PCI-DSS compliance certifications.
CTOs scaling their backend infrastructure hire us to replace slow monolithic APIs. SaaS founders use us to build market-ready platforms on schedule. Enterprise engineering teams outsource complex FastAPI microservices to us when they need senior-level execution without hiring delays.
Types of software we ship.
REST API Microservices
Async FastAPI services with dedicated endpoints, versioning, and rate limiting. Integrated with PostgreSQL, Redis, and RabbitMQ.
GraphQL Gateways
Unify multiple data sources behind a single GraphQL endpoint using Strawberry with FastAPI. Includes caching via Redis.
WebSocket Servers
Real-time bidirectional communication for chat, live dashboards, or gaming. Built with FastAPI WebSockets and Redis pub/sub.
Data Processing Pipelines
Ingest, transform, and serve streaming data using FastAPI, Kafka, and Celery. Run batch jobs with Airflow scheduling.
AI Model Serving Endpoints
Expose machine learning models via FastAPI with auto-scaling on Kubernetes. Supports TensorFlow, PyTorch, and ONNX.
ETL APIs
Extract data from APIs, databases, or files, transform it in Python, and load into warehouses. Uses FastAPI + dbt + Snowflake.
Background Task Workers
Offload heavy processing from requests using FastAPI BackgroundTasks and Celery workers. Includes task retries and monitoring with Flower.
Authentication Services
OAuth2, JWT, SAML, and social login implemented in FastAPI with SQLAlchemy. Supports multi-tenant access control.
We build for every business type.
SaaS platforms
Fintech apps
Healthcare APIs
Ecommerce backends
Real‑time data systems
Why choose a premium FastAPI development firm
IRPR delivers production-ready FastAPI backends with predictable timelines and fixed pricing.
We have shipped over 200 products using FastAPI across 50 countries. Our average delivery time from kickoff to deployment is 12 weeks. Every project includes automated pipelines, comprehensive tests, and full documentation.
We code in Python 3.11 and deploy on Docker and Kubernetes. Our APIs achieve 99.9% uptime with automatic scaling. We handle compliance requirements like SOC 2 and HIPAA at the architecture level.
How IRPR differs from generic development agencies
We are a FastAPI‑focused firm with senior engineers and fixed pricing. You get a production system, not a prototype.
Generic agencies assign junior developers and charge hourly. They often lack async experience and skip testing. We assign senior engineers only and deliver a complete, deployable system within 12 weeks.
Our Roadmap phase produces a fixed quote before any development starts. You know the exact cost and timeline upfront. We handle deployment, monitoring, and documentation as standard deliverables.
- No dedicated FastAPI experience
- Monolithic code with no async support
- No automated tests or CI/CD
- Hourly billing with scope creep
- Minimal API documentation
- No deployment or monitoring setup
- FastAPI specialists with 10+ years Python experience
- Async‑first, modular microservices architecture
- pytest coverage > 90%, GitHub Actions CI/CD
- Fixed price defined in the Roadmap phase
- Auto‑generated Swagger/OpenAPI docs
- Docker Compose, Kubernetes, Sentry out of the box
Our FastAPI development process: 4 phases
We break every project into clear phases so you know exactly what happens and when.
Each phase has deliverables and a review gate. You stay in control without micromanaging. The process works for startups needing speed and enterprises needing compliance.
We start with a Discovery week where we learn your domain, then move to Roadmap. After you approve the plan, we build and test. The final phase makes your API production-ready.
What ships with every FastAPI project
Every deliverable includes everything needed to run, maintain, and scale your API.
We do not hand over code and walk away. Every project includes infrastructure configs, monitoring, and documentation. You can deploy with one command or let us manage it.
Our checklist ensures zero gaps. From repo setup to deployment scripts, everything is tested and documented. You own all assets.
- Source code in your private GitHub / GitLab repo
- CI/CD pipeline using GitHub Actions with pytest coverage > 90%
- Docker Compose configuration for local development
- Production‑ready Kubernetes manifests (Helm or kustomize)
- Auto‑generated OpenAPI (Swagger) documentation
- Sentry error tracking and performance monitoring
- PostgreSQL schema migrations managed by Alembic
- Redis caching layer for high‑traffic endpoints
- Load testing scripts using Locust with results report
- Deployment runbook and architecture decision records
What we ship in this practice.
Real‑time order processing API
Built for an ecommerce client handling 50K orders/day. We reduced API latency by 60% using FastAPI async, Redis caching, and Kafka event streaming. Tech stack: FastAPI, Python 3.11, Redis, Kafka, PostgreSQL.
HIPAA‑compliant patient portal API
Developed a secure backend for a telemedicine startup. Achieved HIPAA compliance with encrypted data, audit logging, and role‑based access. Handles 10K patient records with sub‑100ms response times. Tech stack: FastAPI, Pydantic, PostgreSQL, AWS KMS.
Payment gateway aggregation microservice
Created a unified API that routes transactions across Stripe, Braintree, and PayPal. Processes 10K transactions per second with 99.99% uptime. Integrated fraud scoring via Monzo. Tech stack: FastAPI, Stripe SDK, Celery, Redis, Kubernetes.
AI model serving endpoint for NLP startup
Deployed a FastAPI service that runs BERT‑based models for real‑time sentiment analysis. Cut inference latency by 40% through model batching and ONNX runtime. Handles 1M predictions/day. Tech stack: FastAPI, ONNX, PyTorch, Docker, Kubernetes.
Social media analytics API for media company
Built a data pipeline that ingests 500K posts/day from Twitter and Reddit, processes with NLP, and serves aggregated metrics. Reduced manual reporting time by 20 hours/week. Tech stack: FastAPI, Elasticsearch, Celery, Redis, PostgreSQL.
IoT device management API for manufacturing
Developed a backend that manages 500K connected sensors, receives telemetry, and pushes firmware updates. Achieved 99.9% uptime with auto‑scaling on Kubernetes. Tech stack: FastAPI, MQTT broker, InfluxDB, Redis, Kubernetes.
Why teams hire us.
Fixed price, not hourly
Every 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 any development starts.
Senior engineers only
All developers assigned to your project have 10+ years of Python experience. No junior outsourcing, no offshore teams you cannot talk to. Every engineer writes production FastAPI code daily.
8-12 week delivery
From kickoff to deployment in 12 weeks or less. We use efficient sprints and reusable components. Most MVP backends ship in 8-10 weeks.
Production-ready from day one
Every project includes CI/CD, automated tests, monitoring, and deployment scripts. You can go live immediately after the release phase.
Compliance built-in
We architect for SOC 2, HIPAA, and PCI-DSS from the start. Our templates include encrypted data storage, audit trails, and access controls.
Full code ownership
You own all source code, API designs, and infrastructure configurations. IRPR retains no licensing rights. No lock‑in.
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.