Experienced Backend API Development FirmAPI Development
We build fast, secure APIs that connect your data to the world. Get a scalable backend in 8-12 weeks, no hourly billing.
IRPR is an experienced backend API development firm. We build production-grade APIs using Node.js, Python (FastAPI), Go, and PostgreSQL. Every API ships with automated tests, rate limiting, and a CI/CD pipeline on GitHub Actions.
We deliver a working backend in 8-12 weeks at a fixed price of $80K to $250K. You get a scalable API with documentation, a staging environment, and 24/7 monitoring via Datadog. Our clients pass HIPAA, PCI-DSS, and SOC 2 audits because we bake compliance into the architecture from day one.
Fintech startups hire us to build payment processing APIs. Healthcare companies use us for HIPAA-compliant FHIR endpoints. SaaS businesses rely on us for multi-tenant API gateways. Enterprise teams choose us when they need a senior-only team that ships fast.
Types of software we ship.
REST API development
Design stateless RESTful APIs with versioning, caching (Redis), and pagination. Integrates with PostgreSQL, MongoDB, or MySQL.
GraphQL API development
Build a single GraphQL endpoint that aggregates data from multiple sources. Uses Apollo Server with federated schemas.
Microservices backend
Decompose monolithic apps into containerized microservices with Docker and Kubernetes. Each service has its own database and event bus (Kafka).
Third-party API integration
Connect your system to Stripe, Salesforce, HubSpot, Twilio, or any REST/SOAP API. We handle OAuth, webhooks, and data mapping.
Real-time API (WebSocket)
Build bidirectional real-time feeds for chat, notifications, or live dashboards using WebSockets and Socket.io. Handles 100K concurrent connections.
API gateway / BFF
Create a Backend-for-Frontend (BFF) layer that aggregates internal services and exposes thin endpoints for mobile or web clients.
Data API / ETL pipeline
Build ETL pipelines that pull data from multiple sources (S3, Salesforce, SQL) and expose it via a REST API with automatic scheduling (Airflow).
Internal tool API
Develop admin dashboards and internal tool backends with role-based access control (RBAC) and audit logging. Runs on AWS or GCP.
We build for every business type.
Fintech & Payments
Healthcare & Life Sciences
SaaS & Enterprise
Ecommerce & Retail
Logistics & Transportation
Why an experienced backend API development firm matters
Building a production API is not just about endpoints. It is about security, scalability, and long-term maintainability.
A junior team or a low-cost offshore shop will ship endpoints fast but miss rate limiting, proper error handling, and database indexing. That causes downtime, security gaps, and a rewrite cost that dwarfs the original build. IRPR has shipped over 200 products and knows every pitfall.
We define API contracts before writing code using OpenAPI (Swagger) specs. Every endpoint has automated tests, a circuit breaker (via Node.js), and centralized logging via Datadog. Our APIs handle 10,000+ requests per second with 99.9% uptime. You get a backend you can trust from day one.
How IRPR is different from generic dev shops
Most dev shops start coding immediately. IRPR starts with a contract, a plan, and a fixed price.
We have seen what happens when a generic shop builds an API without contracts: endless scope creep, security patches, and an architecture you cannot scale. IRPR does the opposite.
We start with a 2-week Roadmap phase where we write OpenAPI specs, define data models, and set up the CI/CD pipeline. You approve the plan and the price before a single line of production code runs. Everything after that is predictable.
- Hourly billing, no price cap
- No API contract written upfront
- Rarely tests for edge cases
- No security audit before launch
- Delivers code, no ownership docs
- No monitoring or alerting built in
- Fixed price quoted in week 2
- OpenAPI spec defined before coding
- 100% test coverage on critical paths
- Built-in rate limiting, auth, encryption
- Full source code ownership
- Datadog monitoring + PagerDuty alerts
Our process for backend API development
We build your API in four phases, each with a clear deliverable and go/no-go checkpoint.
Every IRPR project follows a proven structure that eliminates surprises. You know exactly what ships and when.
By the end of phase 4, you have a production-grade backend deployed on AWS or GCP with a CI/CD pipeline, monitoring, and full documentation.
What ships with your API backend
You get more than working endpoints. You get a complete, deployable system that your team can operate immediately.
Our deliverables are designed for real-world operations. No missing pieces, no vendor lock-in.
Every project includes the assets listed below. Your team can take over on day one.
- Source code in your Git repo (GitHub/GitLab)
- CI/CD pipeline with GitHub Actions or GitLab CI
- OpenAPI 3.0 documentation (Swagger UI)
- Docker images for each service
- Deployment scripts for AWS ECS or GKE
- Datadog monitoring dashboard + error tracking
- Sentry crash reporting for Node.js or Python
- Rate limiting and WAF rules (Cloudflare or AWS Shield)
- Encryption key management (AWS KMS or Vault)
- API integration test suite with Postman collection
What we ship in this practice.
Fintech payment gateway API
Built a REST API for a payment processor that handles 50,000 transactions daily. Integrated Stripe Connect, Plaid, and a custom fraud detection module. Reduced chargeback rate by 60% in 3 months.
Healthcare FHIR API for telemedicine
Built a HIPAA-compliant FHIR API that syncs patient records between an EHR and a telemedicine platform. Used FastAPI, PostgreSQL, and AWS HealthLake. Cut record access time from 2 minutes to 3 seconds.
SaaS multi-tenant API gateway
Designed a GraphQL gateway for a B2B SaaS company serving 500+ clients. Each tenant gets isolated data and custom rate limits. Built with Apollo Federation and Redis. Scaled from 10 to 100,000 daily requests without downtime.
Ecommerce order management API
Replaced a legacy SOAP API with a RESTful order management system for a retailer with 200 stores. Integrated with Shopify, NetSuite, and 3PL carriers. Reduced order processing time by 80%.
Real-time tracking API for logistics
Built a WebSocket-based tracking API for a shipping company. Processes location data from 5,000 GPS devices every 30 seconds. Uses Kafka for message streaming and PostgreSQL for storage. Achieved 99.95% uptime in first year.
EdTech data aggregation API
Created a REST API that aggregates student performance data from 3 different LMS platforms. Supports FERPA compliance with role-based access. Reduced reporting time from 5 hours to 15 minutes per week.
Why teams hire us.
Fixed price, not hourly
We quote a fixed price after the 2-week Roadmap phase. No hourly billing, no surprise invoices. You know the cost of your backend API before we write a line of production code.
Senior-only engineering team
Every IRPR developer is a senior engineer with 8+ years of experience. No junior hires, no padding. Your project gets an architect, a lead developer, and a QA engineer - all senior.
API-first design with contracts
We write OpenAPI 3.0 contracts before coding. This prevents miscommunication and lets you review the API design before any backend work starts. The contract becomes your live documentation.
Compliance built in
We build HIPAA, PCI-DSS, SOC 2, and FERPA compliance into the architecture, not bolted on after. Our APIs are auditable by default with full access logs and encryption at rest and in transit.
Full ownership from day one
You own the source code, CI/CD pipeline, Docker images, and documentation. No proprietary frameworks, no locked-in deployment. Your team can take over maintenance immediately after handover.
Fast kickoff, predictable timeline
We start within 2 weeks of signing. Our 8-12 week timeline is tracked in a shared Jira board. You see progress daily. We have delivered over 200 projects on time with a 98% on-time record.
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.