Senior Backend API Development FirmAPI Development
We build production-grade APIs with senior engineers. Fixed price, 8-12 week delivery.
IRPR is a senior backend API development firm. We build APIs using Node.js, Python, Go, and Java with frameworks like Express, FastAPI, Gin, and Spring Boot. Every API is designed for scale, security, and maintainability.
We ship production-ready APIs in 8-12 weeks. Pricing is fixed from $80K to $250K depending on complexity. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. You get full code ownership and a CI/CD pipeline.
CTOs hire us when their in-house team lacks senior API expertise. Startup founders hire us to build their core product API. Enterprise architects hire us to modernize legacy integrations. Product managers hire us to ship a new API feature on a fixed timeline.
Types of software we ship.
REST API Development
Build RESTful APIs with OpenAPI specs, JWT auth, and rate limiting. Integrates with Stripe, Twilio, and AWS.
GraphQL API Development
Design GraphQL schemas with Apollo or Hasura. Supports real-time subscriptions and federated gateways.
Microservices API Architecture
Decompose monoliths into microservices with Docker, Kubernetes, and message queues like RabbitMQ or Kafka.
Third-Party API Integration
Connect your app to Salesforce, HubSpot, Shopify, or custom APIs. Handles OAuth, webhooks, and data sync.
Internal API Development
Build private APIs for internal tools, data pipelines, and service-to-service communication with gRPC or REST.
API Gateway & Management
Deploy API gateways using Kong, AWS API Gateway, or NGINX. Includes caching, throttling, and monitoring.
Real-Time API Development
Build WebSocket or SSE-based APIs for live dashboards, chat, and notifications. Uses Socket.io or Pusher.
Legacy API Modernization
Refactor old SOAP or XML APIs to modern REST or GraphQL. Improves performance and reduces maintenance cost.
We build for every business type.
Fintech
Healthcare
Ecommerce
SaaS
Logistics & Manufacturing
Why Hire a Senior Backend API Development Firm
Building a production API requires senior engineers who understand distributed systems, security, and performance.
IRPR has shipped over 200 products across 50 countries. Our senior engineers average 10+ years of experience. We use Node.js, Python, Go, and Java with PostgreSQL, Redis, and Kafka. Every API is load-tested and monitored with Datadog.
We follow a fixed-price model. After a 2-week Roadmap phase, you get a fixed quote. No hourly billing. No scope creep. You own the code from day one. We deploy on AWS, GCP, or Azure with CI/CD pipelines.
Generic Dev Shop vs Senior Backend API Development Firm
Not all development firms deliver the same quality. Here is how IRPR differs from a generic shop.
Generic dev shops assign junior developers to your project. They use hourly billing and often miss deadlines. Code quality suffers and you end up with technical debt.
IRPR assigns senior engineers only. We use fixed pricing and deliver in 8-12 weeks. Every API is documented, tested, and deployed with monitoring. You get full ownership.
- Junior developers with 1-2 years experience
- Hourly billing with no cap
- No API documentation
- No load testing
- No CI/CD pipeline
- You do not own the code
- Senior engineers with 10+ years experience
- Fixed price from $80K to $250K
- OpenAPI or GraphQL schema docs
- Load testing with k6 or Artillery
- CI/CD pipeline on GitHub Actions
- Full code ownership from day one
Our API Development Process
We follow a structured 4-phase process to deliver your API on time and on budget.
Every project starts with a 2-week Roadmap phase. We define the API contract, data model, and infrastructure. You get a fixed price and timeline.
Then we build, test, and deploy. We use automated testing, staging environments, and monitoring. You see progress every week.
What Ships with Your API
Every API project includes these deliverables by default.
You get more than just code. We ship a complete production-ready system with documentation, monitoring, and deployment pipelines.
All deliverables are in your repository from day one. No black boxes.
- Source code in your GitHub or GitLab repo
- OpenAPI 3.0 or GraphQL schema documentation
- CI/CD pipeline with GitHub Actions or GitLab CI
- Docker containers for local development
- Load testing scripts with k6 or Artillery
- Error tracking with Sentry
- Monitoring dashboard with Datadog or New Relic
- API authentication (JWT, OAuth2, or API keys)
- Database migrations and seed scripts
- Post-launch support for 30 days
What we ship in this practice.
Payment Processing API for Fintech Startup
Built a REST API for a fintech startup handling $2M in monthly transactions. Integrated with Stripe and Plaid. Reduced payment failure rate by 40%. Tech stack: Node.js, PostgreSQL, Redis, Docker.
HIPAA-Compliant Patient Data API
Developed a GraphQL API for a telehealth platform serving 50,000 patients. Compliant with HIPAA and HITRUST. Reduced data retrieval time by 60%. Tech stack: Python, FastAPI, PostgreSQL, AWS.
Ecommerce Product Catalog API
Created a REST API for an ecommerce brand with 10,000 SKUs. Integrated with Shopify and warehouse management. Cut inventory sync time from 4 hours to 15 minutes. Tech stack: Go, PostgreSQL, Kafka, GCP.
Real-Time Analytics API for SaaS Platform
Built a WebSocket API for a SaaS analytics platform serving 500 enterprise clients. Handles 10,000 events per second. Reduced dashboard load time by 80%. Tech stack: Node.js, Redis, TimescaleDB, AWS.
MLS Data Integration API for Real Estate
Developed a REST API to aggregate MLS listings from 50+ sources. Normalized data into a single schema. Reduced data ingestion time by 70%. Tech stack: Python, FastAPI, PostgreSQL, Celery.
IoT Sensor Data API for Manufacturing
Built a gRPC API for a manufacturing plant with 1,000 IoT sensors. Streams data to a central dashboard. Reduced equipment downtime by 25%. Tech stack: Go, gRPC, InfluxDB, MQTT, Azure.
Why teams hire us.
Senior engineers only
Every engineer at IRPR has 10+ years of experience. No juniors. No offshore teams. You work directly with the person writing your code.
Fixed price, not hourly
We give you a fixed price after the 2-week Roadmap phase. No hourly billing. No surprise invoices. You know the cost before we start building.
8-12 week delivery
We ship production-ready APIs in 8-12 weeks. Our process is optimized for speed without sacrificing quality. 98% of projects deliver on time.
Full code ownership
You own all source code, documentation, and infrastructure from day one. No licensing fees. No vendor lock-in. You can take the code anywhere.
Compliance built in
We build APIs that meet HIPAA, PCI-DSS, SOC 2, and FERPA requirements. We handle encryption, access controls, and audit logging.
Post-launch support
We provide 30 days of post-launch support. We monitor your API, fix bugs, and help with scaling. You get a runbook and monitoring dashboard.
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.