Experienced REST API Development DevelopersREST API
We build APIs that ship in 12 weeks. Senior engineers, fixed price, full ownership.
IRPR builds REST APIs using Node.js, Express, FastAPI, and Django REST Framework. Every endpoint is designed with OpenAPI 3.0 specs before a single line of code is written.
We ship MVPs in 12 weeks with a fixed price range of $80K to $250K. Compliance built-in for HIPAA, PCI-DSS, and SOC 2. You own the code from day one.
CTOs scaling a B2B SaaS platform hire us for robust API backends. Startups need a custom payment or data API that integrates with Stripe and Salesforce. Healthcare companies require HIPAA-compliant FHIR APIs. Ecommerce brands want a catalog and order API that handles 10K+ requests per second.
Types of software we ship.
Payment Gateway API
Handles transactions with Stripe, Braintree, or custom processors. Includes PCI-DSS compliance.
Social Media API
User authentication, feeds, friend requests, and messaging using OAuth 2.0 and WebSockets.
Ecommerce API
Manages products, cart, checkout, and inventory. Integrates with Shopify or custom backends.
Healthcare API
FHIR compliant endpoints for patient records, appointments, and lab data. HIPAA certified.
Real-Time Chat API
Low-latency messaging with Socket.IO or WebSockets. Supports typing indicators and read receipts.
Data Analytics API
Aggregates metrics from multiple sources and returns JSON responses. Uses Redis caching for speed.
Geolocation API
Geocoding, reverse geocoding, and route optimization. Powered by Mapbox or Google Maps.
CRM API
Syncs contacts, deals, and activities between your app and Salesforce, HubSpot, or Zoho.
We build for every business type.
Finance
Healthcare
Ecommerce
SaaS
Real Estate
What Experienced REST API Development Delivers
When you hire experienced REST API developers, you get more than endpoints.
IRPR ships APIs that handle thousands of requests per second with 99.9% uptime. Every project includes automated load tests using k6 and monitoring with Datadog.
We design APIs first with OpenAPI 3.0. Clients review the spec before any code is written. This cuts rework by 40% and keeps timelines predictable.
The Difference Between IRPR and a Generic Dev Shop
Most agencies bill hourly and deliver undocumented APIs. IRPR does the opposite.
We start with a Roadmap phase that produces a fixed quote in week 2. No hourly surprises. Every API is documented with Swagger UI and Postman collections.
Generic shops often leave you with a black box. IRPR gives you the source code, CI/CD pipeline, and 12 months of support.
- Hourly billing that bleeds budget
- No API design upfront
- Undocumented endpoints
- Slow iteration cycles
- Unclear ownership of code
- No post-launch support
- Fixed price from week 2
- OpenAPI 3.0 spec before coding
- Auto-generated Swagger docs
- CI/CD with automated tests
- Full source code ownership
- 12 months of support included
Our Process for Building a REST API
Four phases, 12 weeks, predictable results.
Every IRPR project follows a proven sequence. We define scope, build the spec, launch MVP, and then support production. Clients review each phase before moving forward.
What Ships With Every REST API
No hidden deliverables. Every project includes these items.
IRPR treats the API as a product. You get everything needed to run, maintain, and scale it.
- Source code in your GitHub repository
- CI/CD pipeline with GitHub Actions
- Postman / Bruno collection for testing
- Swagger / OpenAPI documentation
- Error tracking with Sentry
- Monitoring with Datadog dashboards
- Docker containerization
- Load testing reports (k6)
- Performance benchmarks
- Deployment scripts for AWS or GCP
What we ship in this practice.
Real-Time Inventory API for Retail
Built with Node.js, Redis, and PostgreSQL. Reduced stockout errors by 40% and cut inventory sync latency from 5 minutes to 200ms.
Payment Processing API for Fintech
Handles 10,000 transactions per minute using Go, Stripe, and Kafka. Achieved PCI-DSS Level 1 compliance in 8 weeks.
Patient Data API for Telemedicine
FHIR compliant endpoints on Django REST Framework. Integrated with Epic and Cerner. Slashed patient onboarding time by 60%.
Property Search API for Real Estate
Built with FastAPI, Elasticsearch, and Mapbox. Returns search results in under 100ms for 2 million listings. Used by 15 brokerages.
User Verification API for SaaS
OAuth 2.0-based API with identity verification via DocuSign. Scaled to 50,000 requests per day. Reduced fraud by 70%.
Chat API for Social Platform
WebSocket-based messaging with Socket.IO and MongoDB. Supports 100K concurrent connections with 30ms latency.
Why teams hire us.
Fixed Price, Not Hourly
Every API project has a fixed price determined during the Roadmap phase in week 2. No hourly billing, no surprise invoices, no scope creep charges.
Senior Engineers Only (US + EU)
IRPR employs engineers with 10+ years of experience in backend development. All are based in US and EU time zones for real-time collaboration.
12-Week MVP Guarantee
We deliver a production-ready REST API in 12 weeks or less. Our process is designed to cut development time by 40% compared to traditional agencies.
Full Code Ownership
You own all source code, infrastructure configs, and documentation. No licensing fees, no vendor lock-in. The code is yours from day one.
Security & Compliance Built-In
We implement HIPAA, PCI-DSS, and SOC 2 controls as part of development. Penetration testing and vulnerability scans are included in every project.
12-Month Post-Launch Support
After deployment, IRPR provides 12 months of monitoring, bug fixes, and minor enhancements. We don't disappear after handing over the code.
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.