Backend API Development ConsultantsDevelopment Consultants
We design and build APIs that move data fast. Fixed price, senior engineers, 12-week delivery.
IRPR builds backend APIs for startups and enterprises. We use Node.js, Go, Python, and Postgres to create REST, GraphQL, and gRPC endpoints. Every API ships with OpenAPI docs, automated tests, and a CI/CD pipeline.
A typical API project runs 8-12 weeks and costs $80K-$250K. We handle compliance (HIPAA, PCI-DSS, SOC 2) from day one. You get a fixed price quote in the Roadmap phase (week 2).
We work with CTOs who need a scalable backend, product managers launching a data-heavy MVP, and founders who want to integrate third-party services like Stripe, Salesforce, or Twilio.
Types of software we ship.
REST API Development
Stateless HTTP APIs for CRUD operations. Built with Express.js or FastAPI, documented with Swagger.
GraphQL API Development
Flexible query APIs for complex data relationships. Uses Apollo Server or Hasura, with GraphQL subscriptions.
Microservices API Design
Decoupled services communicating via gRPC or message queues. Deployed on Kubernetes with Docker.
Third-Party API Integration
Connect your app to Stripe, Salesforce, HubSpot, or custom APIs. Handles auth, rate limits, and webhooks.
Real-Time API (WebSocket)
Bidirectional real-time data streams for chat, live dashboards, and notifications. Built with Socket.IO or WebSocket.
API Gateway & Proxy
Centralized entry point for routing, auth, and rate limiting. Uses Kong or AWS API Gateway.
Event-Driven API (Webhook)
Push-based APIs that notify external systems on events. Built with AWS SNS, SendGrid, or custom webhook handlers.
Internal API (B2B/Backend)
APIs for internal systems, data pipelines, and admin panels. Uses gRPC for low-latency inter-service calls.
We build for every business type.
SaaS platforms
Fintech companies
Healthcare organizations
Ecommerce businesses
Logistics & supply chain
Why hire backend API development consultants
You need an API that scales without rewrites. We have built over 200 production APIs.
A poorly designed API costs you months of refactoring. We follow the API-first approach: define the contract (OpenAPI 3.0) before writing a single line of code. This keeps your frontend and mobile teams working in parallel, cutting integration time by 40%.
Our consultants have shipped APIs for healthcare (HIPAA), fintech (PCI-DSS), and SaaS (SOC 2). We write automated tests that cover every endpoint, so you can deploy with confidence. Every project includes a performance benchmark report.
How IRPR is different from other API consultants
Most agencies charge by the hour and hand you code with no ownership. We do the opposite.
Generic dev shops start coding without a clear spec. They bill hourly, so scope creep becomes your problem. You never know if the API will handle 100 or 10,000 requests per second until it breaks in production.
IRPR gives you a fixed price after a 2-week Roadmap phase. We write a detailed API specification, choose the right tech stack (Node.js, Go, or Python), and deliver a fully tested, documented API. You own the code and the CI/CD pipeline.
- Hourly billing with no cap
- No API contract upfront
- No load testing included
- You don't own the docs
- No CI/CD setup
- Unclear timeline
- Fixed price after Roadmap
- OpenAPI spec in week 2
- Load test to 10K+ RPS
- Full code and doc ownership
- CI/CD pipeline on GitHub Actions
- 8-12 week delivery
Our API development process
We follow a structured 4-phase process that eliminates guesswork.
Phase 1 is the Roadmap: we define every endpoint, data model, and integration point. You get a fixed price and a 2-week timeline for this phase. Phase 2 is Product: we build the API in 6-8 weeks, writing tests alongside code.
Phase 3 is Release: we deploy to your cloud (AWS, GCP, or Azure), set up monitoring (Datadog, Sentry), and run a 1-week performance test. Phase 4 is Handoff: you get source code, docs, and a 30-day support window.
What ships with every API project
Every deliverable is production-ready and documented. No surprises.
You get more than an API endpoint. We ship the entire infrastructure: authentication, error handling, logging, and monitoring. Every project includes a CI/CD pipeline so you can deploy changes in minutes.
We also provide a developer portal with interactive docs (Swagger UI). Your mobile and frontend teams can start integrating immediately. No waiting for documentation to be written after the fact.
- Source code in your GitHub/GitLab repo
- OpenAPI 3.0 specification
- CI/CD pipeline on GitHub Actions
- Docker container with Dockerfile
- Sentry error tracking
- Datadog APM and uptime monitoring
- Load test report (k6 or Artillery)
- Postman collection for manual testing
- API authentication (JWT, OAuth2, or API keys)
- 30-day post-launch support
What we ship in this practice.
Payment processing API for a fintech startup
Built a PCI-DSS compliant API that handles 500+ transactions per second. Used Go, PostgreSQL, and Stripe Connect. Reduced integration time for payment partners by 60%.
Patient data API for a telehealth platform
Developed a HIPAA-compliant FHIR API connecting to Epic and Cerner. Handled 10,000 patient records daily. Cut data retrieval time from 5 seconds to 200ms.
Order management API for an ecommerce brand
Created a REST API that syncs orders across Shopify, Amazon, and their warehouse system. Reduced order processing errors by 90%. Built with Node.js and RabbitMQ.
Real-time tracking API for a logistics company
Built a WebSocket API that streams GPS coordinates every 2 seconds. Used AWS IoT Core and DynamoDB. Enabled live tracking for 5,000 shipments simultaneously.
Content delivery API for a media platform
Designed a GraphQL API that aggregates video metadata from 3 sources. Reduced page load time by 40% through batching. Used Apollo Server and Redis caching.
Student enrollment API for an edtech platform
Developed a FERPA-compliant API that connects to 20+ school districts. Automated enrollment data sync, saving 8 hours of manual data entry per week. Built with Python and FastAPI.
Why teams hire us.
Fixed price, not hourly
Every API project gets a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices. You know the cost before we write a single endpoint.
Senior engineers only
We do not outsource or use junior developers. Every consultant has 8+ years of backend experience. You work directly with the engineer building your API.
API-first design
We write the OpenAPI spec before coding. This ensures your frontend and mobile teams can start integration immediately. It also prevents scope creep.
Built for compliance
We have shipped APIs for HIPAA, PCI-DSS, SOC 2, and FERPA environments. Compliance is baked into the architecture, not bolted on after launch.
Own your code and docs
You get full source code, API documentation, and CI/CD pipeline. No licensing fees, no vendor lock-in. You can take the code and run it yourself.
Proven track record
We have shipped over 200 products for clients in 50+ countries. 98% of our projects deliver on time. Our APIs handle millions of requests per day.
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.