Backend API Development DevelopersAPI Development
We build production-grade APIs that handle millions of requests. Fixed price, 8-12 week delivery, full code ownership.
IRPR builds backend APIs for web and mobile apps. We use Node.js, Python, Go, and Rust to create REST, GraphQL, and gRPC endpoints. Every API includes automated testing, rate limiting, and monitoring with Datadog.
A typical backend API ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, and SOC 2. You get full source code, CI/CD pipelines, and Postman collections.
CTOs hire us when their in-house team is overloaded. Startup founders hire us to build their first production API. Product managers hire us to add a new integration layer. Enterprise architects hire us to migrate from monoliths to microservices.
Types of software we ship.
REST API development
Stateless endpoints with JSON responses. Built with Express.js or FastAPI. Includes Swagger docs and JWT auth.
GraphQL API development
Single endpoint with flexible queries. Built with Apollo Server or Hasura. Reduces over-fetching by 40% on mobile.
Microservices API development
Decoupled services communicating via gRPC or message queues. Uses Docker, Kubernetes, and NATS for event streaming.
Third-party API integration
Connect your app to Stripe, Salesforce, HubSpot, or Twilio. Handles OAuth, webhooks, and rate limit retries.
Real-time API development
WebSocket and Server-Sent Events for live data. Built with Socket.io or AWS AppSync. Used for chat, dashboards, and alerts.
Payment API development
PCI-DSS compliant endpoints for Stripe, Braintree, or Adyen. Handles subscriptions, refunds, and fraud detection.
Data API development
Read-only or write APIs for large datasets. Uses PostgreSQL, Elasticsearch, or Redis caching. Supports pagination and filtering.
Admin API development
Internal APIs for dashboards and back-office tools. Includes role-based access control and audit logs. Built with Django REST or Rails.
We build for every business type.
SaaS platforms
Ecommerce and retail
Healthcare and fintech
Media and content
Logistics and IoT
Why backend API development matters
A well-built API is the backbone of every modern application.
Your frontend, mobile app, and third-party integrations all depend on a single backend API. If that API is slow, insecure, or hard to maintain, everything breaks. IRPR builds APIs that handle 10,000 requests per second with 99.9% uptime.
We use automated load testing with k6 and monitoring with Datadog. Every endpoint has a defined SLA. We ship Postman collections and OpenAPI specs so your team can start integrating immediately.
Generic dev shop vs IRPR
Not all backend API developers deliver the same quality.
Many agencies promise fast delivery but skip testing, documentation, and security. They hand over code that works today but breaks tomorrow. IRPR follows a different approach.
We write automated tests for every endpoint. We enforce code reviews and static analysis with SonarQube. Every API ships with a deployment guide and a runbook.
- No automated tests
- No API documentation
- No rate limiting
- No monitoring
- No CI/CD pipeline
- No security audit
- 100% test coverage on critical paths
- OpenAPI 3.0 spec included
- Rate limiting with Redis
- Datadog monitoring and alerts
- GitHub Actions CI/CD
- OWASP top 10 security review
How we build your backend API
Our process from idea to production in 4 phases.
Phase 1: Roadmap. We map every endpoint, data model, and integration. You get a fixed price and a 2-week timeline for this phase.
Phase 2: Build. We write code in 2-week sprints. You see working endpoints every sprint. We deploy to staging for your QA team.
What ships with your backend API
Every project includes these deliverables by default.
You own everything. Source code, documentation, and infrastructure config are all yours. No lock-in, no hidden fees.
We also include a runbook that explains how to deploy, scale, and debug the API. Your team can take over immediately.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- OpenAPI 3.0 specification
- Postman collection with examples
- Automated test suite (unit + integration)
- Docker Compose for local development
- Deployment guide and runbook
- Sentry error tracking
- Datadog monitoring dashboard
- Security audit report
What we ship in this practice.
Payment processing API for a fintech startup
Built a PCI-DSS compliant API that processes 50,000 transactions per month. Integrated with Stripe Connect for marketplace payouts. Reduced manual reconciliation by 12 hours per week. Tech stack: Node.js, PostgreSQL, Stripe, Redis.
Patient data API for a telemedicine platform
Developed a HIPAA-compliant API for patient records, appointment scheduling, and video call initiation. Handles 200,000 API calls per day. Tech stack: Python, FastAPI, PostgreSQL, Twilio.
Inventory sync API for an ecommerce brand
Created a real-time inventory API that syncs stock levels across Shopify, Amazon, and a warehouse system. Reduced overselling by 95%. Tech stack: Go, Redis, RabbitMQ, Shopify API.
Analytics API for a SaaS dashboard
Built a GraphQL API that aggregates data from 10 sources into a single endpoint. Query response time under 200ms. Tech stack: Node.js, Apollo Server, Elasticsearch, AWS Lambda.
Fleet tracking API for a logistics company
Developed a real-time API that ingests GPS data from 5,000 vehicles. Provides ETA calculations and route optimization. Reduced fuel costs by 8%. Tech stack: Python, FastAPI, Kafka, MongoDB.
Content delivery API for a media platform
Built a REST API that serves 10 million video metadata requests per month. Integrated with CloudFront CDN for low latency. Tech stack: Node.js, Express, PostgreSQL, Redis.
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 line of code.
Senior engineers only
Every developer on your project has 8+ years of experience. No juniors, no offshore teams. Your API is built by engineers who have shipped production systems at scale.
Full code ownership
You own every line of code, every config file, and every document. No proprietary frameworks, no license fees. You can take the code to any team after launch.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs from day one. We handle encryption, audit logs, and access controls. No retrofitting compliance after launch.
8-12 week delivery
Most APIs ship in 8-12 weeks. We use proven patterns and reusable modules to accelerate development. You get a production-ready API faster than hiring a full-time team.
Post-launch support included
Every project includes 30 days of free support after launch. We fix bugs, answer questions, and help your team take over. After that, we offer maintenance at a fixed monthly rate.
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.