Hire a Senior FastAPI Development TeamDevelopment Team
We build production-grade APIs with FastAPI. Fixed price, senior engineers only, delivered in 8-12 weeks.
IRPR is a senior FastAPI development team. We build RESTful APIs, async workers, and microservices using FastAPI, SQLAlchemy, Pydantic, and Alembic. Every engineer has 8+ years of Python experience and ships production code from day one.
We deliver a working FastAPI backend in 8-12 weeks. Pricing is fixed from $80K to $250K depending on scope. All projects include async endpoints, automated tests with pytest, OpenAPI docs, and CI/CD pipelines. We support HIPAA, PCI-DSS, SOC 2, and FERPA compliance.
Companies hire us when they need a senior FastAPI development team for a B2B SaaS platform that must scale to 10K requests per second, a fintech app requiring PCI-compliant payment processing, a healthcare data exchange under HIPAA, or an AI chatbot backend with streaming responses.
Types of software we ship.
RESTful API backend
FastAPI endpoints with JWT auth, rate limiting, and PostgreSQL. Ships with OpenAPI docs and pytest coverage.
Async microservices
Event-driven services using FastAPI, Celery, Redis, and RabbitMQ. Handles background jobs and real-time data pipelines.
GraphQL API
FastAPI with Strawberry or Ariadne. Resolves nested queries, subscriptions, and integrates with existing REST endpoints.
Real-time websocket server
FastAPI WebSocket endpoints for chat, live dashboards, and streaming data. Supports 10K concurrent connections per node.
AI/ML model serving API
FastAPI endpoints for LLM inference, image classification, or recommendation engines. Uses ONNX, TensorFlow, or PyTorch.
Data pipeline API
FastAPI + Apache Kafka or Airflow for ETL jobs. Ingests 1M+ records per minute with validation and deduplication.
Admin dashboard backend
FastAPI with SQLAdmin or custom dashboards. Includes role-based access, audit logs, and CSV/PDF exports.
Third-party integration API
FastAPI middleware for Stripe, Salesforce, HubSpot, or Slack. Handles OAuth, webhooks, and rate-limited sync jobs.
We build for every business type.
SaaS platforms
Fintech applications
Healthcare systems
Ecommerce and retail
Data-intensive platforms
Why a Senior FastAPI Development Team Matters
FastAPI is fast, but wrong architecture kills performance. Senior engineers know how to design async routes, manage database connections, and set up caching from the start.
A junior team writes endpoints that block the event loop. A senior FastAPI development team uses async SQLAlchemy sessions, connection pooling with PgBouncer, and Redis caching. They structure the project with dependency injection and repository patterns so you can swap databases or add features without rewriting everything.
IRPR has shipped 200+ products with FastAPI. We use Pydantic v2 for validation, Alembic for migrations, and pytest with async fixtures. Every API comes with auto-generated OpenAPI docs, health check endpoints, and structured logging with Sentry.
Generic Dev Shop vs. A Senior FastAPI Development Team
Not all agencies are equal. Here is what you get with a generic shop versus IRPR.
A generic dev shop might assign a junior developer who learned FastAPI from a tutorial. They skip async patterns, write blocking code, and hand you a monolithic API with no tests. You pay hourly and the timeline slips.
IRPR assigns senior engineers only. Every developer has 8+ years of Python experience and has shipped at least 10 FastAPI projects. We write async endpoints, use Pydantic for validation, and deliver 90%+ test coverage. Fixed price means you know the cost before we start.
- Assigns junior or mid-level developers
- Writes synchronous endpoints that block under load
- No automated tests or CI/CD pipeline
- Charges hourly with no fixed cap
- Delivers undocumented APIs
- No compliance experience (HIPAA, PCI, SOC 2)
- Every engineer has 8+ years of Python experience
- Async endpoints with connection pooling and Redis caching
- pytest with 90%+ coverage, GitHub Actions CI/CD
- Fixed price from $80K to $250K, no surprises
- Auto-generated OpenAPI docs and Sentry error tracking
- HIPAA, PCI-DSS, SOC 2, and FERPA compliant
How IRPR Builds Your FastAPI Backend
We follow a four-phase process to ship a production-grade FastAPI API in 8-12 weeks.
Phase 1 is the Roadmap. In week 2, we deliver a detailed project plan with architecture diagrams, endpoint list, database schema, and a fixed price. You approve the plan before any code is written.
Phase 2 is the Build. We work in two-week sprints. Each sprint ends with a demo and deployable code. You see progress every 14 days. Phase 3 is the Release, where we set up monitoring, load test the API, and deploy to production. Phase 4 is a 30-day warranty with bug fixes and performance tuning.
What Ships With Every FastAPI Project
Every FastAPI backend comes with a standard set of deliverables. No hidden extras.
You get source code in your private GitHub repo, a CI/CD pipeline on GitHub Actions, and a production deployment on AWS ECS or Google Cloud Run. We include auto-generated OpenAPI docs, health check endpoints, and Sentry error tracking. All code is yours. No licensing fees.
We also ship a Postman collection, a database migration script, and a README with setup instructions. If you need compliance, we add audit logging, encryption at rest, and role-based access control.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Production deployment on AWS ECS or Google Cloud Run
- Auto-generated OpenAPI docs (Swagger UI)
- pytest suite with 90%+ coverage
- Sentry error tracking and performance monitoring
- Postman collection with example requests
- Alembic database migration scripts
- README with setup, env vars, and deployment guide
- 30-day warranty with bug fixes
What we ship in this practice.
B2B SaaS Analytics API
Built a FastAPI backend for a SaaS analytics platform. Handles 10K requests per second with async endpoints, Redis caching, and PostgreSQL. Reduced page load time by 60%. Tech stack: FastAPI, PostgreSQL, Redis, Pydantic v2.
HIPAA-Compliant Telemedicine API
Developed a FastAPI backend for a telemedicine startup. Supports real-time video scheduling, patient records, and e-prescriptions. Passed HIPAA audit on first try. Tech stack: FastAPI, PostgreSQL, Alembic, AWS KMS.
PCI-Compliant Payment Gateway
Built a FastAPI payment processing API that handles 50K transactions per day. Integrates with Stripe and Braintree. Achieved PCI-DSS Level 1 compliance. Tech stack: FastAPI, Stripe, PostgreSQL, Celery.
Real-Time Chat Backend
Created a FastAPI WebSocket server for a customer support platform. Supports 5K concurrent connections per node with sub-100ms latency. Tech stack: FastAPI, WebSockets, Redis Pub/Sub, Nginx.
AI Recommendation Engine API
Built a FastAPI endpoint for a personalized recommendation engine. Uses ONNX models for inference. Reduced cold-start recommendations by 40%. Tech stack: FastAPI, ONNX, Redis, PostgreSQL.
IoT Data Ingestion API
Developed a FastAPI backend for a smart building IoT platform. Ingests 1M sensor readings per minute with validation and anomaly detection. Tech stack: FastAPI, Apache Kafka, InfluxDB, Grafana.
Why teams hire us.
Senior engineers only, no junior developers
Every engineer on your project has 8+ years of Python experience and has shipped at least 10 FastAPI projects. We do not staff juniors or offshore teams.
Fixed price from the Roadmap phase
In week 2, we deliver a fixed price quote based on the Roadmap. No hourly billing, no surprise invoices, no scope creep charges. You know the cost before we write code.
Production-grade code from sprint 1
We write async endpoints, Pydantic validators, and pytest tests from day one. No prototypes, no rewrites. Code goes to production at the end of the project.
Compliance built in, not bolted on
We have built FastAPI backends for HIPAA, PCI-DSS, SOC 2, and FERPA. Audit logging, encryption, and RBAC are part of the architecture, not an afterthought.
200+ products shipped across 50 countries
IRPR has delivered 200+ software products to clients in 50+ countries. We know what works in production and what breaks under load.
30-day warranty and ongoing support
After release, we provide 30 days of bug fixes and performance tuning. We can also set up a monthly retainer for ongoing maintenance and feature work.
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.