Experienced Backend API Development VendorBackend API
We build secure, scalable APIs for your product. Fixed price, delivered in 12 weeks.
IRPR is an experienced backend API development vendor. We build REST and GraphQL APIs using Node.js, Python, Go, and PostgreSQL.
We ship production-ready APIs in 12-14 weeks. Pricing ranges from $80K to $250K depending on complexity. All APIs meet HIPAA, PCI-DSS, or SOC 2 compliance if required.
Our clients include CTOs building SaaS products, engineering leads integrating third-party services, and founders launching MVPs that need a reliable backend.
Types of software we ship.
REST API Development
Build stateless, scalable REST APIs with OpenAPI specs. Supports JSON/XML, JWT auth, and rate limiting.
GraphQL API Development
Implement flexible GraphQL APIs using Apollo Server or Relay. Clients query exactly what they need.
Microservices API
Design distributed microservices communicating via gRPC or message queues. Uses Docker and Kubernetes.
Third-Party API Integration
Connect your app to Stripe, Salesforce, Twilio, or any external API. Handles OAuth, webhooks, and error handling.
Internal API Development
Create private APIs for internal tools and services. Includes auth, logging, and monitoring with Datadog.
Real-time API (WebSocket)
Build real-time data streams using WebSockets and Server-Sent Events. Ideal for live dashboards and chat.
API Gateway / Proxy
Set up API gateways with Kong or AWS API Gateway. Manages routing, rate limiting, and authentication centrally.
Data Pipeline APIs
Design APIs for ETL processes and data ingestion. Supports batch and streaming via Kafka and Apache Airflow.
We build for every business type.
SaaS companies
enterprise IT
fintech and finance
healthcare
ecommerce and retail
Why choose an experienced backend API development vendor
We deliver production-grade APIs on time and on budget.
Building a backend API requires deep knowledge of routing, caching, authentication, and database optimization. Generic developers often skip these. IRPR has built over 200 APIs for clients in 50 countries across healthcare, fintech, and SaaS.
Our team uses proven patterns: JWT/OAuth2 for auth, Redis for caching, PostgreSQL for persistence, and Docker for deployment. Every API ships with OpenAPI documentation and automated tests.
Generic agency vs. experienced backend API vendor
Not all API teams deliver the same quality.
A generic web development agency may write spaghetti code for your API. They often skip proper error handling and documentation. Integration testing is an afterthought.
IRPR treats your API as a product. We write comprehensive tests, monitor performance with Datadog, and provide complete OpenAPI specs. Your code is clean, secure, and ready for scale.
- No dedicated API architect
- No automated performance tests
- No rate limiting or caching
- No API versioning strategy
- No monitoring or alerting
- No documentation beyond comments
- Lead API architect on every project
- Automated tests with 90%+ coverage
- Redis caching and rate limiting built in
- Versioned endpoints (v1, v2)
- Datadog monitoring and PagerDuty alerts
- OpenAPI 3.0 docs and Postman collection
How we build your backend API
Our process from idea to production API.
We start with a two-week Roadmap phase to define your API contract, data model, and deployment strategy. You get a fixed price and timeline by week two.
Then we sprint through development, testing, and deployment. You see working endpoints every week. We ship your API with documentation, tests, and CI/CD pipeline by week 12.
What ships with your backend API
Every project includes these deliverables
You get more than just code. We provide the infrastructure, documentation, and monitoring to run your API in production.
- Source code in your private GitHub repo
- OpenAPI 3.0 specification (Swagger UI)
- CI/CD pipeline on GitHub Actions
- Dockerized microservices with docker-compose
- Postman collection with example requests
- Automated unit and integration tests
- Datadog monitoring dashboards
- Sentry error tracking
- Rate limiting and caching implementation
- Deployment to your cloud account (AWS/GCP/Azure)
What we ship in this practice.
Payment processing API for a fintech startup
Built a PCI-DSS compliant payment API using Node.js, Stripe, and PostgreSQL. The client reduced transaction failure rate by 40% and processed $2M in first month.
Healthcare data exchange API
Integrated with Epic EHR using FHIR standards. Backend built with Python and FastAPI. Slashed manual data entry by 15 hours per week.
SaaS subscription management API
Designed a billing API with Stripe and webhooks. Clients can manage plans and invoices. Reduced churn by 22% through automated dunning.
Real-time inventory sync API for ecommerce
Built a WebSocket API for inventory updates across 3 warehouses. Used Redis and Node.js. Cut stock discrepancies to zero.
Travel booking platform API
Aggregated flights and hotels from Amadeus and Sabre. Backend in Go with PostgreSQL. Handles 10,000 requests/min with 99.99% uptime.
IoT device data pipeline API
Ingested sensor data from 500 devices via MQTT. Processed with Apache Kafka and stored in TimescaleDB. Reduced data latency from 5 seconds to 200ms.
Why teams hire us.
Fixed price, not hourly
We quote a fixed price in the Roadmap phase (week 2). No surprise invoices or scope creep. You know the cost before we write a line of production code.
12-week delivery
Most APIs ship in 12 weeks or less. Our senior team works in parallel on endpoints, tests, and infrastructure. No month-long delays.
Senior engineers only
Every project has a lead architect with 10+ years of backend experience. No junior devs learning on your API.
Full code ownership
When we finish, you own every line of code. No licenses, no lock-in. Source is in your repo day one.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs by default. Our audit-ready pipelines save months of compliance work.
Production monitoring included
Every API ships with Datadog dashboards, alerting, and error tracking. You know when something breaks before users do.
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.