Senior FastAPI Development PartnerDevelopment Partner
Hire a team of senior FastAPI engineers to build high-performance APIs, microservices, and data pipelines. We ship production-ready code in 8-12 weeks with fixed pricing.
IRPR builds production-grade FastAPI backends for companies that need high-performance, asynchronous APIs. We use FastAPI with Pydantic for data validation, SQLAlchemy for ORM, and deploy on AWS ECS or Kubernetes.
We ship fully functional MVPs in 8-12 weeks, with pricing from $80K to $250K depending on scope. All projects comply with HIPAA, PCI-DSS, or SOC 2 standards where required.
Our clients include CTOs of SaaS startups building their first product, engineering directors at healthcare companies replacing legacy Django APIs, and product managers at fintech firms needing low-latency data ingestion pipelines.
Types of software we ship.
REST API development
Build high-throughput REST APIs with FastAPI, async SQLAlchemy, and automatic OpenAPI docs. Integrates with Stripe, Twilio, or any third-party API.
Microservices architecture
Deploy independent FastAPI services communicating via gRPC or Kafka. Each service can be scaled and deployed separately on Kubernetes.
Real-time data pipeline
Process streaming data with FastAPI, Kafka, and WebSockets. Handle millions of events per day with async workers.
GraphQL API development
Expose GraphQL endpoints using Strawberry or Ariadne on top of FastAPI. Combine REST and GraphQL in one project.
WebSocket backend
Build real-time features like chat, notifications, and live dashboards using FastAPI's built-in WebSocket support and Redis pub/sub.
Background task processor
Offload heavy computations to Celery workers triggered by FastAPI endpoints. Monitor progress with Flower and store results in Redis.
ML model serving API
Serve machine learning models via FastAPI with ONNX or TensorFlow Serving. Add async inference and caching for sub-10ms latency.
Mobile app backend
Create a mobile-friendly API with FastAPI, using JWT authentication, push notifications via Firebase, and sync with Realm or SQLite.
We build for every business type.
SaaS startups
Healthcare
Fintech
Ecommerce
Data-intensive
FastAPI development partner with proven delivery stats
Our track record means you can trust IRPR to ship your FastAPI project on time and on budget.
IRPR has delivered 200+ software products across 50+ countries. Every FastAPI project we build is backed by a fixed price and a clear timeline. Our engineers average 7+ years of Python experience.
We maintain a 98% on-time delivery rate and a 99.9% uptime SLA for all production systems. Our clients stay with us because we ship code that works from day one.
the difference
Not all development partners deliver the same results. Here is how IRPR stacks up against a generic dev shop.
When you hire a generic shop, you often get junior developers learning FastAPI on your project. Timelines slip, budgets balloon, and compliance is an afterthought.
IRPR assigns only senior engineers with proven FastAPI experience. We lock pricing in week 2 and build compliance into the architecture from day one. You own the full codebase.
- Unclear timelines and budget overruns
- Junior developers learning FastAPI on your project
- No automated testing or CI/CD
- Code ownership unclear
- No compliance expertise
- No post-launch support
- Fixed price quoted in week 2
- Senior engineers only – average 7+ years
- CI/CD with GitHub Actions, Sentry, and Datadog
- Full code ownership from day one
- HIPAA, PCI-DSS, SOC 2 compliance built-in
- 1-year warranty on all code
Our proven 4-phase process for FastAPI projects
IRPR follows a structured approach that eliminates guesswork and ensures on-time delivery.
Every FastAPI project goes through Discovery, Architecture, Development, and Launch. We use agile sprints with bi-weekly demos.
By the end of the process you have a production-ready API with automated tests, monitoring, and deployment scripts.
What ships with every FastAPI project
You get more than just code. Every IRPR engagement includes a full operations package.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Dockerized FastAPI application
- Automated API tests with Pytest
- Swagger/OpenAPI documentation
- Deployment scripts for AWS or GCP
- Sentry error tracking and Datadog monitoring
- One year of bug fixes included
- Complete technical documentation
- Post-launch performance report
What we ship in this practice.
Healthcare patient portal API
Built a FastAPI backend for a telehealth startup to handle patient scheduling, EHR sync, and video call initiation. Reduced API latency by 60% and achieved HIPAA compliance in 10 weeks. Tech: FastAPI, PostgreSQL, Twilio, AWS.
SaaS subscription management platform
Developed a microservices architecture with FastAPI for billing, user management, and usage tracking. Processed 10,000 concurrent users with 99.9% uptime. Tech: FastAPI, Stripe, Kafka, Kubernetes.
Real-time financial data pipeline
Created a streaming API for a fintech company to ingest market data, detect anomalies, and trigger alerts. Handled 1 million events per second with sub-second processing. Tech: FastAPI, Kafka, Redis, ClickHouse.
ML model serving for ecommerce
Deployed a FastAPI service that served product recommendation models with ONNX runtime. Achieved 5ms inference time and integrated with existing REST endpoints. Tech: FastAPI, ONNX, Redis, Docker.
Internal tool API for logistics
Replaced a slow Django REST API with a FastAPI microservice for order tracking and route optimization. Cut response times from 200ms to 30ms and reduced server costs by 40%. Tech: FastAPI, Celery, PostGIS, Datadog.
Mobile app backend for travel platform
Built a FastAPI backend handling user authentication, booking, and push notifications. Supported 50,000 daily active users with zero downtime during peak season. Tech: FastAPI, MongoDB, Firebase, Stripe.
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.
Senior engineers only
Our team averages 7+ years of Python and backend experience. Every engineer has shipped FastAPI projects to production.
Compliance built-in from day one
We integrate HIPAA, PCI-DSS, and SOC 2 requirements into the architecture from the start. No costly retrofits or audit failures.
Full code ownership
You own every line of code from the first commit. No licenses, no ongoing fees, no vendor lock-in.
1-year warranty on all code
We fix any bugs, performance issues, or security vulnerabilities for free for one year after launch. No extra charges.
On-time delivery guarantee
98% of our projects ship on schedule. We use agile sprints, daily standups, and transparent milestones to keep you informed.
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.