Expert Backend API Development ServicesAPI Development
We build production-grade APIs that handle millions of requests per day. Get a fixed-price quote in week 2 and ship in 8-12 weeks.
IRPR builds expert backend API development services for companies that need reliable, scalable APIs. We use Node.js, Python, Go, and Java with frameworks like Express, FastAPI, and Spring Boot. Every API is designed with OpenAPI 3.0 specs and tested with Postman and Jest.
We ship your first API endpoint in 2 weeks and a full production API in 8-12 weeks. Pricing starts at $80K and goes to $250K for complex microservices. All projects include API documentation, rate limiting, authentication (JWT/OAuth2), and compliance with HIPAA, PCI-DSS, or SOC 2.
CTOs hire us when their in-house team is too slow. Product owners hire us to build APIs for their SaaS MVP. Engineering managers hire us to refactor a monolithic backend into microservices. We work async-first with daily standups and bi-weekly demos.
Types of software we ship.
REST API Development
Build stateless RESTful APIs with JSON responses. Uses Express.js, Django REST, or Spring Boot. Includes Swagger docs and Postman collections.
GraphQL API Design
Single endpoint with flexible queries. Uses Apollo Server, GraphQL Yoga, or Hasura. Reduces over-fetching and under-fetching by 40%.
Microservices API Gateway
Central gateway for multiple microservices. Uses Kong, NGINX, or AWS API Gateway. Handles auth, rate limiting, and request routing.
Webhook Integration Service
Receive and send real-time events via webhooks. Uses Stripe, GitHub, or Slack APIs. Includes retry logic and event logging.
gRPC API Development
High-performance APIs using Protocol Buffers. Uses gRPC with Go or C++. 10x faster than REST for internal services.
API Security Audit & Hardening
Audit existing APIs for OWASP Top 10 vulnerabilities. Implements rate limiting, input validation, and encryption. Delivers a security report.
Third-Party API Integration
Connect your app to Salesforce, HubSpot, Stripe, or Twilio. Handles OAuth2 flows, webhooks, and data sync. Average integration takes 2 weeks.
Real-Time API with WebSockets
Build real-time APIs for chat, live updates, or notifications. Uses Socket.io, WebSocket API, or AWS AppSync. Supports 100K concurrent connections.
We build for every business type.
SaaS platforms
ecommerce
healthcare
fintech
logistics
Why Expert Backend API Development Services Matter
A poorly designed API costs you time, money, and customers.
IRPR has shipped over 200 APIs for clients in 50 countries. We see the same problems: endpoints that return too much data, no rate limiting, and missing authentication. These issues cause slow apps, security breaches, and angry users.
Our expert backend API development services fix that. We design APIs with OpenAPI 3.0, enforce rate limits at the gateway, and use JWT or OAuth2 for every endpoint. The result is an API that scales from 100 to 1 million requests without breaking.
How IRPR Delivers Expert Backend API Development
Most agencies bill hourly and deliver late. We do the opposite.
Generic dev shops start coding without a spec. They change requirements mid-project and bill you for every extra hour. You end up with an API that has no documentation, no tests, and no security review.
IRPR starts with a Roadmap phase. In week 2, you get a fixed price, a timeline, and a detailed API spec. We build in 2-week sprints with automated tests and CI/CD. You see working endpoints every sprint.
- Hourly billing with no cap
- No API spec before coding
- No automated tests
- No CI/CD pipeline
- No security audit
- No documentation
- Fixed price from week 2
- OpenAPI 3.0 spec before coding
- Jest and Postman test suites
- GitHub Actions CI/CD
- OWASP security review
- Swagger docs shipped with code
Our Process for Expert Backend API Development
Four phases from idea to production API.
Every project follows the same proven process. It removes guesswork and keeps your budget predictable.
You get a working API in 8-12 weeks, not 6 months. Each phase has a clear deliverable so you know exactly what you are paying for.
What Ships With Every Expert Backend API
Every project includes these deliverables by default.
No hidden costs. No surprise fees. Everything listed here is included in your fixed price.
You own all code and can deploy it anywhere. We do not lock you into our infrastructure.
- Source code in your GitHub or GitLab repo
- OpenAPI 3.0 spec (Swagger UI)
- Postman collection with example requests
- CI/CD pipeline on GitHub Actions or GitLab CI
- Automated test suite (unit + integration)
- Rate limiting and authentication (JWT/OAuth2)
- Error logging with Sentry
- API monitoring with Datadog or New Relic
- Deployment scripts for AWS, GCP, or Azure
- Security audit report (OWASP Top 10)
What we ship in this practice.
Multi-Tenant SaaS API
Built a REST API for a B2B SaaS platform that handles 500K requests/day. Used Node.js, Express, PostgreSQL, and Redis. Reduced response time from 800ms to 120ms. Industry: SaaS.
Payment Processing API
Developed a PCI-DSS compliant API for a fintech startup. Integrated with Stripe and Plaid. Handles 10K transactions per hour with 99.99% uptime. Industry: Fintech.
Healthcare FHIR API
Built a HIPAA-compliant FHIR API for a telemedicine platform. Used Python FastAPI and PostgreSQL. Reduced patient data retrieval from 5 seconds to 200ms. Industry: Healthcare.
Ecommerce Product API
Created a GraphQL API for an ecommerce store with 50K SKUs. Used Apollo Server, MongoDB, and Elasticsearch. Cut page load time by 60%. Industry: Ecommerce.
Real-Time Tracking API
Built a WebSocket API for a logistics company to track 10K shipments in real time. Used Socket.io and Redis. Reduced manual tracking calls by 90%. Industry: Logistics.
Learning Management API
Developed a FERPA-compliant API for an edtech platform. Used Ruby on Rails and PostgreSQL. Supports 100K concurrent users during peak exam periods. Industry: EdTech.
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 engineer on your project has 8+ years of experience. No junior developers learning on your dime. Our team includes ex-FAANG engineers who have built APIs at scale.
API spec before code
We write the full OpenAPI 3.0 spec before writing any code. You review and approve every endpoint, request, and response. No guesswork, no rework.
Compliance built in
We build HIPAA, PCI-DSS, SOC 2, and FERPA compliance into the API from day one. No retrofitting. No audit failures. We have shipped compliant APIs for 50+ clients.
You own everything
Full source code, documentation, and deployment scripts are yours. No licensing fees, no platform lock-in. You can take the code to any cloud or in-house team.
98% on-time delivery
We have delivered 200+ projects on time. Our 2-week sprint cycle with bi-weekly demos means you see progress constantly. No 6-month black holes.
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.