Leading Backend API Development ServicesAPI Development
We build production-grade APIs in 8-12 weeks. Fixed price, no surprises.
IRPR delivers leading backend API development services using Node.js, Python, Go, and TypeScript. Our engineers build REST, GraphQL, gRPC, and WebSocket APIs that scale to millions of requests per day without rewrites.
Every API project ships in 8-12 weeks with a fixed price from $80K to $250K. We handle compliance like HIPAA, PCI-DSS, and SOC 2 out of the box. You get the source code, CI/CD pipeline, and deployment scripts in your own cloud account.
Founders working on a SaaS MVP hire us when they need a backend that will survive their Series A. CTOs at ecommerce brands hire us to rebuild slow legacy APIs. Engineering teams at healthcare companies hire us to build HIPAA-compliant patient data APIs.
Types of software we ship.
RESTful API
Standard resource-based architecture with full HATEOAS support. Integrated with Kong Gateway and Swagger docs.
GraphQL API
Single endpoint, typed schema, real-time subscriptions. Built with Apollo Server, Prisma, and Redis caching.
Microservices Backend
Decoupled services communicating via message queues (RabbitMQ, Kafka). Each service independently deployable.
Serverless API
Lambda functions or Cloud Functions with API Gateway. Auto-scales, pay per request, zero server management.
Real-time API
WebSocket and SSE endpoints for live updates. Used for chat, live dashboards, and collaborative tools.
Payment API Integration
Connect Stripe, Braintree, or Adyen with idempotency keys, webhooks, and 3D Secure handling.
Third-Party API Integration Layer
Abstract multiple external APIs (Salesforce, HubSpot, QuickBooks) behind a single unified interface.
API Gateway & Management
Rate limiting, authentication (JWT, OAuth2), monitoring, and caching layer using Kong or AWS API Gateway.
We build for every business type.
Ecommerce
Fintech
Healthcare
SaaS
Logistics & Travel
measurable results from our backend API projects
Every API we ship is built to a fixed scope and a fixed price, with metrics you can verify.
Our clients see average API response times under 50ms at p99 for well-designed endpoints. For a fintech client processing 10 million transactions a month, we reduced latency from 600ms to 40ms by switching from a monolithic Python server to a Go microservices stack with Redis caching.
We track uptime, error rates, and request throughput on every project. In 2024, the average uptime across all IRPR-managed APIs was 99.96%. That includes deployments, maintenance windows, and third-party dependencies.
why generic dev shops fail vs. how IRPR delivers
Most backend API projects go over budget and miss deadlines because of unclear scoping and tech debt. We do the opposite.
A generic dev shop often starts coding without a proper API contract. They use a single framework for everything, skip monitoring, and hand you a codebase that costs more to maintain than to build. We have seen projects from other agencies that took 9 months and still had no health checks, no rate limiting, and no documentation.
IRPR writes an OpenAPI specification in week 1 and gets your sign-off before writing a single line of business logic. We enforce code reviews, automated tests, and deploy with zero-downtime strategies. The result: an API that is correct, fast, and maintainable from day one.
- No API contract before coding
- Single framework (e.g., Django) for everything
- No monitoring or alerting on API errors
- Bugs discovered in production by end users
- No automated security scans
- Delivered 3 months late and 40% over budget
- OpenAPI spec signed off before any code
- Framework chosen by use case (Go, Node, Python)
- Sentry + Datadog monitoring from day 1
- End-to-end tests catch 95% of regressions before production
- OWASP top 10 checks in CI pipeline
- Delivered on time and on budget, fixed price
our backend API development process in 4 phases
From idea to production in 8-12 weeks. Each phase has clear deliverables and a fixed price.
Phase 1 (Roadmap) takes 1 week. We review your requirements, write the OpenAPI specification, and give you a fixed quote for the entire build. Phase 2 (Build) runs 5-8 weeks depending on complexity. Our senior engineers write the API, set up CI/CD, and deploy to a staging environment.
Phase 3 (Review) is 1 week of your team testing the API against real use cases. We fix any issues found. Phase 4 (Release) is the final deploy to production with documentation, monitoring, and a security audit report. You own everything.
what you get with every backend API project
Every deliverable is concrete and ready to use. No surprises, no locked doors.
You receive a production-ready API that is documented, monitored, and secured. The code is in your Git repository from day one. We never hold back code or configurations as leverage. Everything we build is yours.
- Full source code in your private GitHub repository
- OpenAPI 3.0 documentation (Swagger UI)
- CI/CD pipeline using GitHub Actions or GitLab CI
- Automated API integration tests (Jest, Supertest)
- Sentry error tracking with alerting
- Datadog or CloudWatch monitoring dashboards
- Dockerized services with Kubernetes or ECS deployment
- Rate limiting, authentication, and CORS configuration
- Security scan reports (OWASP ZAP or Snyk)
- Postman collection for manual testing
What we ship in this practice.
SaaS platform for real estate agents
Built a Node.js + PostgreSQL API for a property listing platform. Handles 50,000+ MLS listings with full-text search and geospatial queries. Reduced page load time from 4 seconds to 300ms by adding Redis caching and Elasticsearch.
HIPAA-compliant patient intake API
Developed a Go + gRPC microservice for a healthcare startup. Processes 10,000 patient intakes per day with PHI encryption, audit logging, and full HIPAA audit trail. Achieved under 1 second submission-to-confirmation time.
Payment processing API for fintech
Created a Stripe-integrated API that handles recurring billing, refunds, and multi-currency payments. Idempotency keys and webhook verification prevent double charges. Processed $12M in transactions in the first month.
Inventory synchronization API for ecommerce
Built a Python + Kafka microservice that syncs inventory across Shopify, Amazon, and a custom WMS. Reduced out-of-stock incidents by 70% by updating inventory every 30 seconds.
Real-time fleet tracking API for logistics
Deployed a WebSocket + Redis pub/sub API for a trucking company. Streams GPS data from 2,000 trucks every 10 seconds. Enables live route updates and ETA calculations used by dispatchers.
Subscription management API for SaaS
Developed a TypeScript + Prisma API with idempotent billing, subscription tiers, and usage metering. Integrated with Stripe and hosted on AWS ECS. Handles 1 million subscription events per month with 99.95% uptime.
Why teams hire us.
Fixed price, not hourly
Every backend API project gets a fixed quote during the Roadmap phase (week 1). You know the exact cost before we write a line of code. No hourly billing, no surprise invoices, no scope creep fees.
Senior engineers only
Every IRPR engineer has 10+ years of experience. We do not outsource to junior developers or contractors. Your API is designed and built by people who have shipped production systems at scale.
API contract before coding
We write the OpenAPI specification and get your approval before writing business logic. This eliminates misunderstandings and ensures the API does what you actually need.
Full ownership from day 1
All source code, configurations, and documentation are in your Git repository from the start. You control CI/CD, secrets, and cloud accounts. We never hold your infrastructure hostage.
Post-release support included
Every project includes 30 days of production support after release. We respond to critical issues within 4 hours and release patches within 24 hours. Extended support is available at a fixed monthly rate.
Compliance built in, not bolted on
HIPAA, PCI-DSS, and SOC 2 are part of our standard build process. We use encryption at rest and in transit, audit logging, and role-based access control. No extra charge for compliance features.
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.