Backend API Development FirmAPI Development
We build production-grade APIs that handle millions of requests. Fixed price, 8-12 week delivery, full compliance.
IRPR is a backend API development firm that builds custom APIs using Node.js, Python, Go, and Rust. We design RESTful and GraphQL endpoints, microservices architectures, and event-driven systems that scale from zero to millions of users.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, and SOC 2 out of the box. Our APIs include automated testing, CI/CD pipelines, and monitoring from day one.
We work with CTOs who need a scalable backend for their SaaS product, product managers launching a mobile app that requires a reliable API layer, and founders building an MVP that must handle real traffic without breaking.
Types of software we ship.
REST API development
Stateless HTTP endpoints with JSON responses. Built with Express.js or FastAPI. Includes OpenAPI documentation and rate limiting.
GraphQL API development
Single endpoint with flexible queries. Built with Apollo Server or Hasura. Reduces over-fetching and under-fetching of data.
Microservices architecture
Decoupled services communicating via gRPC or message queues. Each service scales independently. Uses Docker and Kubernetes.
Webhook integration
Real-time event notifications to external systems. Supports retry logic, idempotency keys, and payload signing with HMAC.
Third-party API integration
Connect your app to Stripe, Salesforce, HubSpot, Twilio, or any external API. Handles authentication, rate limits, and error handling.
API gateway development
Single entry point for multiple backend services. Handles authentication, throttling, caching, and request routing. Built with Kong or AWS API Gateway.
Real-time API (WebSocket)
Persistent connections for live data streaming. Built with Socket.io or WebSocket API. Used for chat, notifications, and live dashboards.
Internal API development
Private APIs for communication between your own services. Uses gRPC for high performance. Includes service discovery and circuit breakers.
We build for every business type.
SaaS platforms
Healthcare applications
Fintech applications
Ecommerce platforms
Real estate platforms
Why hire a backend API development firm
Building a production-grade API requires more than writing endpoints. It needs security, scalability, and monitoring from day one.
IRPR has shipped 200+ backend systems across 50 countries. Our APIs handle everything from 100 requests per day to 10 million requests per hour. We use Node.js, Python, Go, and Rust depending on your performance needs.
Every API we build includes automated load testing, error tracking with Sentry, and uptime monitoring with Datadog. We write integration tests that cover every endpoint. Your API ships with a Postman collection and OpenAPI spec so your frontend team can start immediately.
Generic dev shop vs IRPR
Most dev shops build APIs that work today but break tomorrow. IRPR builds APIs that scale with your business.
Generic shops often skip load testing, ignore security compliance, and hand over code with no documentation. You end up with a slow, insecure API that costs more to fix than to rebuild.
IRPR delivers a production-ready API with automated tests, CI/CD pipelines, and full documentation. We include compliance for HIPAA, PCI-DSS, and SOC 2 at no extra cost. Your team gets source code ownership and a 30-day warranty.
- No load testing before launch
- No API documentation
- No CI/CD pipeline
- No error monitoring
- No security audit
- Hourly billing with scope creep
- Load tested to 10x expected traffic
- OpenAPI spec and Postman collection
- GitHub Actions CI/CD pipeline
- Sentry error tracking included
- HIPAA, PCI-DSS, SOC 2 compliance
- Fixed price, no surprises
How we build your backend API
Our process is designed to get you a working API fast, with no surprises.
We start with a 2-week Roadmap phase where we define every endpoint, data model, and integration. You get a fixed price and timeline before any code is written.
Then we build in 2-week sprints. You see working endpoints every sprint. We deploy to staging after sprint 2. Production launch happens by week 8-12.
What ships with your API
You don't just get code. You get a complete production system.
Every API project includes everything needed to run, monitor, and maintain your backend. No hidden costs, no missing pieces.
Your team can start using the API immediately after handover. The documentation and Postman collection let frontend developers integrate in hours, not weeks.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- OpenAPI 3.0 specification
- Postman collection with example requests
- Sentry error tracking configured
- Datadog monitoring dashboard
- Load test results report
- Security audit report
- Deployment runbook
- 30-day post-launch support
What we ship in this practice.
SaaS subscription management API
Built a REST API for a subscription billing platform handling 50,000 users. Integrated Stripe for payments and SendGrid for email notifications. Reduced failed payment retries by 40%. Tech stack: Node.js, PostgreSQL, Redis, Stripe API.
Healthcare patient data API
Developed a HIPAA-compliant API for a telemedicine app. Handled patient records, appointment scheduling, and video call metadata. Achieved 99.9% uptime with 200ms average response time. Tech stack: Python FastAPI, PostgreSQL, Twilio Video, AWS.
Fintech payment processing API
Created a PCI-DSS compliant API for a lending platform. Processed 10,000 loan applications per day with real-time credit checks. Reduced manual underwriting time by 60%. Tech stack: Go, MySQL, Redis, Plaid API.
Ecommerce product catalog API
Built a GraphQL API for an online retailer with 200,000 SKUs. Supported faceted search, inventory lookups, and real-time pricing. Cut page load time from 3 seconds to 400ms. Tech stack: Node.js, Elasticsearch, MongoDB, Redis.
Real estate MLS data API
Developed a REST API that aggregates MLS listings from 5 different sources. Normalized data into a single schema with geospatial search. Reduced listing sync time from 4 hours to 15 minutes. Tech stack: Python, PostgreSQL with PostGIS, RabbitMQ.
EdTech assessment scoring API
Built a FERPA-compliant API for an online testing platform. Handled 100,000 concurrent users during peak exam periods. Scored and returned results in under 2 seconds. Tech stack: Node.js, Redis, AWS Lambda, DynamoDB.
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 we write a single line of code.
Senior engineers only
IRPR does not hire juniors. Every engineer has 8+ years of experience building production APIs. You work directly with the person writing your code, not a project manager.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliance into every API from day one. No retrofitting. No extra cost. Your API passes audits without rework.
8-12 week delivery
Your first production API ships in 8-12 weeks. We use proven patterns and reusable components to move fast. 98% of our projects deliver on time.
Full code ownership
You own every line of code. No licensing fees, no platform lock-in, no recurring royalties. Your source code is in your repository from day one.
Post-launch support included
Every project includes 30 days of post-launch support. We fix bugs, answer questions, and help your team take over. No handoff drama.
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.