Senior API Development VendorAPI Development
You need APIs that handle real traffic and pass compliance audits. We ship production-ready APIs in 8-12 weeks at a fixed price.
IRPR is a senior API development vendor that builds production-ready APIs using Node.js, Python, Go, and .NET. We design RESTful and GraphQL APIs with PostgreSQL, Redis, and Kafka for high-throughput systems.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, and SOC 2, and include CI/CD, monitoring, and documentation in every delivery.
CTOs hire us when their internal team is overloaded or lacks senior API expertise. Startup founders use us to build their first API product for investors. Enterprise architects bring us in for integration projects that must pass security audits.
Types of software we ship.
REST API Development
Build stateless RESTful APIs with OpenAPI 3.0 specs, JWT auth, rate limiting, and Swagger docs. Deployed on AWS ECS or Kubernetes.
GraphQL API Development
Design GraphQL APIs with Apollo Server, DataLoader for batching, and subscriptions for real-time updates. Integrates with any frontend framework.
Microservices API Gateway
Build an API gateway using Kong or Envoy to route traffic, handle auth, and aggregate responses from multiple microservices.
Third-Party API Integration
Connect your system to Stripe, Salesforce, HubSpot, or QuickBooks via their APIs. Includes error handling, retry logic, and webhook sync.
Internal API for Legacy Systems
Wrap legacy databases and mainframe systems with a modern REST or GraphQL API layer. Reduces migration risk and speeds up frontend development.
Real-Time API with WebSockets
Build real-time APIs using WebSockets and Socket.io for live dashboards, chat apps, and collaborative tools. Handles 10K+ concurrent connections.
API for Mobile Backend (BaaS)
Create a backend-as-a-service API for mobile apps with Firebase or custom Node.js. Includes push notifications, offline sync, and user auth.
Data API with Streaming
Build a streaming data API using Apache Kafka or AWS Kinesis for real-time analytics, event sourcing, and log processing.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS Platforms
Logistics and Supply Chain
Why You Need a Senior API Development Vendor
Building a production API that handles 10,000 requests per minute and passes SOC 2 audit requires senior engineers who have done it before.
A junior team will design APIs that break under load, leak data through poor auth, and fail compliance. IRPR's senior engineers have built APIs for fintech platforms processing $50M monthly and healthcare systems serving 500K patients. We write code that scales and passes audits on day one.
We ship every API with automated tests covering 90%+ code paths, rate limiting, structured logging, and a monitoring dashboard in Datadog or New Relic. You get a production-ready system, not a prototype that needs a rewrite.
How IRPR Differs from a Generic API Development Shop
Most API agencies hand your project to junior developers and charge by the hour. IRPR assigns senior engineers only and fixes the price upfront.
We have seen projects where a generic shop took 6 months and $200K to build an API that still failed load testing. That does not happen with IRPR. Our Roadmap phase (week 2) produces a fixed quote and a detailed technical design before any code is written.
Your team communicates directly with the senior engineer building your API. No account managers. No handoffs. The same engineer who designs the schema writes the tests and deploys to production.
- Junior developers with 1-2 years experience
- Hourly billing with no cap
- No compliance expertise (HIPAA, PCI-DSS)
- No monitoring or alerting included
- API docs are an afterthought
- Code ownership is unclear
- Senior engineers with 10+ years experience
- Fixed price from the Roadmap phase
- Built-in HIPAA, PCI-DSS, SOC 2 compliance
- Datadog monitoring and Sentry error tracking included
- OpenAPI 3.0 docs shipped with every API
- Full code ownership transferred to you
Our API Development Process in 4 Phases
We follow a structured process from idea to production API in 8-12 weeks.
Each phase builds on the previous one. You see working code every 2 weeks and can adjust requirements at any point without changing the price.
The process is designed to eliminate surprises. By week 4 you have a functioning API that you can test with your own frontend.
What Ships with Every API Project
Every API delivery includes everything you need to run, monitor, and maintain the system yourself.
You get production-ready code, not a half-finished prototype. We include all infrastructure as code, so you can recreate the environment in any AWS account.
Documentation is generated automatically from the OpenAPI spec and hosted on SwaggerHub. Your frontend team can start integrating on day one.
- Full source code in your GitHub repository
- CI/CD pipeline on GitHub Actions
- Sentry error tracking configured
- Datadog monitoring dashboard
- OpenAPI 3.0 documentation on SwaggerHub
- Automated test suite with 90%+ coverage
- Postman collection for manual testing
- Deployment scripts for AWS ECS or Kubernetes
- Rate limiting and API key management
- Security audit report (OWASP top 10)
What we ship in this practice.
Payment Processing API for Fintech Startup
Built a PCI-DSS compliant API that processes 5,000 transactions per minute using Stripe Connect, Node.js, and PostgreSQL. Reduced payment failures by 40% and passed QSA audit in 2 weeks.
Patient Data API for Healthcare Network
Developed a HIPAA-compliant FHIR API that integrates with Epic and Cerner EHRs. Handles 200K patient records with sub-200ms response times. Used Python, FastAPI, and AWS HealthLake.
Inventory Sync API for Omnichannel Retailer
Created a real-time inventory API that syncs stock levels across 12 warehouses and 3 ecommerce platforms (Shopify, Magento, Amazon). Reduced overselling incidents by 95%. Built with Go and Redis.
Subscription Billing API for SaaS Platform
Engineered a billing API that manages 50K active subscriptions with Stripe Billing, proration, and usage-based pricing. Reduced churn by 15% through smart dunning. Stack: Node.js, PostgreSQL, Bull queue.
Real-Time Tracking API for Logistics Company
Built a WebSocket-based tracking API that handles 10K concurrent drivers and updates ETA every 5 seconds. Used Python, Redis Pub/Sub, and AWS AppSync. Cut customer support calls by 60%.
Content Delivery API for Media Platform
Developed a GraphQL API that serves 500K daily active users with personalized content feeds. Cached with Redis, deployed on AWS Lambda, and reduced page load time from 3s to 400ms.
Why teams hire us.
Senior engineers only, no juniors
Every IRPR engineer has 10+ years of experience and has shipped at least 5 production APIs. You never get a junior developer learning on your project.
Fixed price from week 2
After the Roadmap phase, you get a fixed price quote that does not change. No hourly billing, no surprise invoices, no scope creep charges.
Built-in compliance for HIPAA, PCI-DSS, SOC 2
We design APIs with compliance from day one. Data encryption, audit logs, access controls, and vulnerability scanning are standard in every project.
Full code ownership
You own all source code, documentation, and infrastructure scripts. There is no license fee, no lock-in, no recurring payment to IRPR.
Same engineer from design to deploy
The senior engineer who designs your API schema also writes the tests, sets up CI/CD, and deploys to production. No handoffs, no context loss.
Production monitoring included
Every API ships with Datadog dashboards, Sentry error tracking, and PagerDuty alerts. You can see request latency, error rates, and traffic patterns from day one.
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.
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