Hire a Senior Custom API Development TeamAPI Development
We build production-grade APIs for your product. 8-12 week delivery, fixed price, full compliance.
IRPR is a senior custom API development team that builds REST, GraphQL, and gRPC APIs for startups and enterprises. We use Node.js, Go, Python, PostgreSQL, Redis, and AWS Lambda to create scalable, secure backends.
Our fixed-price projects ship in 8-12 weeks with pricing from $80K to $250K. We handle API design, security compliance (HIPAA, PCI-DSS, SOC 2), and production deployment. Every API gets load testing and monitoring.
We work with CTOs who need a fast, compliant API for a new product. We help engineering leads integrate third-party systems without breaking existing workflows. We build for founders who need an MVP with a clean API layer.
Types of software we ship.
REST API development
Build RESTful APIs with OpenAPI specs, rate limiting, and auth. Integrates with Stripe, Twilio, or SendGrid.
GraphQL API development
GraphQL APIs with Apollo, Prisma, and DataLoader. Reduces over-fetching and speeds up mobile clients.
Microservices API
Decoupled microservices with Docker, Kubernetes, and message queues like RabbitMQ or Kafka.
Third-party API integration
Connect your product to Salesforce, HubSpot, Shopify, or QuickBooks. Custom sync logic with error handling.
Payment gateway API
Build PCI-DSS compliant payment APIs using Stripe, Braintree, or Adyen. Handles subscriptions and refunds.
Healthcare API (HIPAA)
HIPAA-compliant APIs for EHR/EMR, FHIR, and patient data. BAAs, encryption, and audit logs included.
AI/ML API
Wrap ML models in REST or gRPC APIs using TensorFlow, PyTorch, or OpenAI. Auto-scaling on AWS SageMaker.
Real-time API
WebSocket and Server-Sent Events APIs with Socket.IO, Redis Pub/Sub, and AWS API Gateway. Latency under 50ms.
We build for every business type.
financial services
healthcare and life sciences
ecommerce and retail
SaaS and enterprise
logistics and travel
What a Senior Custom API Development Team Delivers
A senior team ships more than code. You get security, documentation, and deployment automation.
We write OpenAPI 3.0 specs before writing a single endpoint. Every API includes JWT or OAuth 2.0 auth, rate limiting, and structured error responses. We use Terraform for infrastructure and GitHub Actions for CI/CD.
We deploy to AWS or GCP with auto-scaling, monitoring, and logging via CloudWatch and Sentry. Load tests guarantee 99.9% uptime at 10,000 concurrent requests. You own every line of code.
The Difference Between Generic Dev Shops and IRPR
Not all API teams are equal. Here is what sets IRPR apart from agencies that treat your project like a ticket queue.
Generic shops assign junior developers who learn on your dime. They skip docs and security reviews. They charge hourly and scope creep eats your budget.
IRPR assigns senior engineers with 10+ years each. We deliver a complete API package including OpenAPI specs, load tests, CI/CD, and monitoring. Fixed price means no surprises.
- Junior devs learning on your project
- No OpenAPI specs or docs
- Hourly billing with scope creep
- No load testing or security audit
- Code delivered without CI/CD
- No monitoring or uptime SLA
- Senior engineers with 10+ years experience
- OpenAPI 3.0 specs and auto-generated docs
- Fixed price from Roadmap phase
- Load tests at 10K concurrent requests
- CI/CD via GitHub Actions + Terraform
- Sentry and CloudWatch monitoring included
How We Build Your Custom API
Our process from idea to production takes 8-12 weeks. Here are the four phases.
We start with a 2-week Roadmap phase. You get a fixed quote, a detailed spec, and a delivery timeline. No code is written until you sign off.
Then we build, test, and deploy. Each sprint ends with a working API you can hit from Postman. We handle security audits and compliance documentation.
What Ships with Every Custom API
Every engagement includes these deliverables. Nothing hidden in a contract appendix.
You get production-ready code in your private GitHub repo. We configure CI/CD pipelines, error tracking, and uptime monitoring. We also deliver architecture diagrams and a set of Postman collections.
Security is baked in. Every API gets penetration testing, encryption at rest and in transit, and a compliance workbook for HIPAA or PCI audits.
- Source code in your GitHub repo
- OpenAPI 3.0 specification
- JWT or OAuth 2.0 authentication
- CI/CD pipeline on GitHub Actions
- Load tests at 10K concurrent requests
- Sentry error tracking
- CloudWatch or Datadog monitoring
- Penetration test report
- Postman collection for all endpoints
- Compliance workbook (HIPAA/PCI/SOC 2)
What we ship in this practice.
Payment gateway API for a fintech startup
Built a PCI-DSS compliant API with Stripe Connect. Processed $2M in monthly transactions with zero downtime. Tech stack: Node.js, PostgreSQL, Stripe, AWS Lambda.
HIPAA-compliant EHR API for a telemedicine platform
Designed a FHIR-based API for patient records, appointment scheduling, and e-prescriptions. Reduced patient data retrieval time by 60%. Tech stack: Go, PostgreSQL, FHIR, AWS.
Real-time inventory API for a retail chain
Built a WebSocket API syncing 50,000 SKUs across 200 stores. Inventory updates in under 1 second. Tech stack: Node.js, Redis, WebSocket, AWS API Gateway.
GraphQL API for a SaaS analytics platform
Developed a GraphQL API with Apollo and Prisma. Cut frontend API calls by 80% and sped up dashboard loading by 3x. Tech stack: Node.js, Apollo, PostgreSQL, Redis.
Third-party integration API for an e-commerce brand
Connected Shopify, Salesforce, and QuickBooks with a unified API. Sync order, customer, and inventory data daily without conflicts. Tech stack: Node.js, Shopify API, Salesforce REST API, AWS.
Microservices API for a logistics company
Built a set of microservices for route optimization and shipment tracking. Handled 100,000 daily API calls with 99.9% uptime. Tech stack: Go, Docker, Kubernetes, Kafka.
Why teams hire us.
Senior engineers only
Every engineer on your project has 10+ years of experience. No juniors, no contractors. We assign the team before you pay anything.
Fixed price, not hourly
You get a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. The price is the price.
8-12 week delivery
Most custom APIs ship in 8-12 weeks. We use a proven blueprint: spec, build, test, deploy. 98% of IRPR projects finish on time.
Full code ownership
You own every line of code, every spec, and every doc. No licensing, no royalties, no hidden fees. The code is yours from day one.
Compliance built in
We deliver HIPAA, PCI-DSS, and SOC 2 compliant APIs. We provide BAAs for healthcare, penetration tests, and audit-ready documentation.
Post-launch support included
We include 30 days of post-launch support. We fix bugs, answer questions, and help your team take over. After that, we offer retainer options.
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.