Professional Backend API Development FirmAPI Development
We build backend APIs that scale to millions of requests. Fixed price, 8-12 week delivery, full ownership of the code.
IRPR is a professional backend API development firm. We build custom APIs using Node.js, Python, Go, and Rust on AWS, GCP, or Azure. Every API is designed for high concurrency, low latency, and strict security.
We ship production-ready APIs in 8-12 weeks. Our fixed pricing starts at $80K and goes to $250K. We comply with HIPAA, PCI-DSS, and SOC 2 by default. You get full source code, CI/CD pipelines, and 99.9% uptime SLAs.
CTOs who need a scalable backend without hiring a team. Startup founders who want to validate an idea with a working API. Enterprise architects migrating from monoliths to microservices. All hire IRPR for our senior-only team and predictable delivery.
Types of software we ship.
REST API Development
Build stateless RESTful APIs with Express.js, FastAPI, or Django. Includes OpenAPI specs and automated testing.
GraphQL API Development
Build flexible GraphQL APIs with Apollo Server or Hasura. Supports real-time subscriptions and federated gateways.
Microservices Architecture
Decompose monoliths into microservices with Docker, Kubernetes, and gRPC. Each service is independently deployable.
Webhook Integration
Build webhook receivers and senders for Stripe, GitHub, Slack, and custom endpoints. Includes retry logic and idempotency.
API Gateway Development
Build API gateways with Kong, NGINX, or AWS API Gateway. Handles rate limiting, authentication, and routing.
Data Pipeline API
Build streaming and batch data pipelines with Kafka, Airflow, and Spark. APIs for real-time data ingestion and processing.
Third-Party API Integration
Integrate Salesforce, HubSpot, Stripe, Twilio, and 100+ other APIs. Includes error handling and rate limit management.
Serverless API Development
Build serverless APIs with AWS Lambda, API Gateway, and DynamoDB. Pay only for compute time, scale to zero.
We build for every business type.
SaaS companies
Ecommerce brands
Healthcare organizations
Fintech startups
Logistics and supply chain
Why Hire a Professional Backend API Development Firm
Building a production-grade API is not a weekend project. It requires deep knowledge of distributed systems, security, and scaling.
IRPR has shipped over 200 backend APIs across 50 countries. Our APIs handle millions of requests per day with 99.9% uptime. We use Node.js, Python, and Go to build APIs that are fast and maintainable.
Every API we build includes automated testing, monitoring with Datadog, and error tracking with Sentry. We deploy on AWS, GCP, or Azure using Terraform and Kubernetes. You get a fully managed CI/CD pipeline that deploys on every commit.
The Difference Between IRPR and Generic Development Shops
Most agencies promise custom APIs but deliver copy-paste code with no documentation and no tests. IRPR is different.
We start with a 2-week Roadmap phase where we define the API contract, data model, and deployment architecture. You get a fixed price quote before any code is written. No hourly billing, no surprises.
Our senior engineers write every line of code. We follow clean architecture patterns, write unit and integration tests, and generate OpenAPI documentation automatically. The result is an API that is easy to maintain and extend.
- Hourly billing with no cap
- Junior developers learning on your project
- No API documentation
- No automated tests
- No CI/CD pipeline
- No security review
- Fixed price from the Roadmap phase
- Senior engineers only (10+ years experience)
- OpenAPI spec generated automatically
- 90%+ test coverage
- GitHub Actions CI/CD pipeline included
- OWASP security review in every project
Our Backend API Development Process
We follow a proven 4-phase process that delivers a production-ready API in 8-12 weeks.
Phase 1 is the Roadmap. We define the API endpoints, data schema, authentication strategy, and deployment plan. You get a fixed price and a 2-week timeline for this phase.
Phase 2 is the Build. Our engineers write the code in 6-8 sprints. We deploy to a staging environment after every sprint. You can test the API as it is built.
What Ships With Every Backend API
Every API we build comes with a complete set of deliverables. Nothing is optional.
You get full ownership of the source code, infrastructure as code, and CI/CD pipelines. There are no licensing fees, no recurring charges, no vendor lock-in.
We also include monitoring dashboards, error tracking, and performance metrics. Your team can take over maintenance immediately or we can continue to support it.
- Source code in your private GitHub repo
- OpenAPI 3.0 specification
- Postman collection for testing
- CI/CD pipeline on GitHub Actions
- Docker containers for local development
- Terraform scripts for AWS/GCP/Azure
- Datadog monitoring dashboard
- Sentry error tracking
- Load test results with k6
- Security scan report from OWASP ZAP
What we ship in this practice.
Multi-Tenant SaaS API
Built a multi-tenant API for a B2B SaaS platform using Node.js, PostgreSQL, and AWS ECS. The API handles 10,000 requests per second with sub-50ms latency. Reduced tenant onboarding time from 2 weeks to 2 hours.
HIPAA-Compliant Patient Data API
Built a HIPAA-compliant API for a telehealth startup using Python FastAPI, PostgreSQL, and AWS. The API passed third-party HIPAA audit on first attempt. Handles 500,000 patient records with end-to-end encryption.
PCI-DSS Payment Processing API
Built a PCI-DSS Level 1 compliant payment API for a fintech company using Go, Stripe Connect, and AWS. The API processes $50M in monthly transactions with 99.99% uptime. Reduced chargeback rate by 40%.
Real-Time Inventory Sync API
Built a real-time inventory sync API for an ecommerce brand using Node.js, Redis, and Kafka. The API syncs inventory across 3 warehouses and 2 marketplaces in under 1 second. Reduced out-of-stock incidents by 60%.
MLS Data Aggregation API
Built an MLS data aggregation API for a real estate platform using Python, MongoDB, and AWS Lambda. The API fetches and normalizes data from 50+ MLS providers. Reduced data latency from 24 hours to 5 minutes.
Learning Management System API
Built a FERPA-compliant API for an edtech company using Django REST Framework, PostgreSQL, and Azure. The API serves 1 million students with 99.9% uptime. Reduced course creation time by 70%.
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. Our average project costs between $80K and $250K.
Senior engineers only
Our team averages 12 years of experience. No juniors, no contractors, no offshore teams. Every engineer has shipped at least 10 production APIs before joining IRPR.
8-12 week delivery
We ship production-ready APIs in 8-12 weeks. Our record is 6 weeks for a fintech API. We use 2-week sprints with demo at the end of every sprint.
Full code ownership
You own 100% of the source code, infrastructure, and documentation. No license fees, no recurring costs, no vendor lock-in. We transfer everything to your GitHub and cloud accounts.
Compliance built in
We build HIPAA, PCI-DSS, SOC 2, and FERPA compliance into every API from day one. Our security checklist includes encryption at rest and in transit, access controls, and audit logging.
99.9% uptime SLA
Every API comes with a 99.9% uptime SLA backed by monitoring and on-call support. We use multi-region deployments and auto-scaling to handle traffic spikes.
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.