Top Backend API Development ConsultantsAPI Development
We build APIs that scale to 10K requests per second on day one. 200+ products shipped in 12 weeks or less.
IRPR is a studio of senior backend engineers who build production-grade APIs using Node.js, Go, Python, and AWS Lambda. We design REST and GraphQL endpoints that handle authentication, rate limiting, caching, and database queries out of the box.
A complete backend API ships in 12-14 weeks with fixed pricing from $80K to $250K. Every project includes load testing, documentation via Swagger, and compliance scaffolding for HIPAA, PCI-DSS, or SOC 2.
Founders hire us when they need a scalable API to support a mobile app or SaaS. CTOs bring us in to replace poorly built legacy backends. Product teams use us to build integration layers for Stripe, Salesforce, and HubSpot.
Types of software we ship.
REST API Development
Build RESTful endpoints with Express.js or Fastify. Includes JWT auth, rate limiting, and database integration via Prisma.
GraphQL API Consulting
Design GraphQL schemas using Apollo Server. Resolvers, subscriptions, and federation for microservice architectures.
Microservice Backend Architecture
Split monolithic APIs into microservices with Docker, Kubernetes, and message queues like RabbitMQ or AWS SQS.
Third-Party API Integration
Connect your app to Stripe, Salesforce, HubSpot, Twilio, and 50+ other APIs. OAuth2 flows and webhooks included.
Serverless Backend Development
Deploy APIs on AWS Lambda or Vercel Functions. Auto-scales to millions of requests without provisioning servers.
Real-Time API Development
Add WebSocket or SSE endpoints for live chat, notifications, and real-time dashboards using Socket.IO or Pusher.
API Security Audits
Review your backend for OWASP Top 10 vulnerabilities. Implement rate limiting, input validation, and encryption at rest.
API Documentation & SDKs
Generate Swagger/OpenAPI documentation automatically. Build client SDKs in JavaScript, Python, and Swift.
We build for every business type.
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Why Companies Hire Backend API Consultants
Building a backend API that handles production traffic requires senior-level decisions on architecture, security, and scaling.
IRPR's consultants have shipped over 200 APIs for startups and enterprises across 50 countries. We choose the right framework for each use case: Node.js for high I/O, Go for low latency, Python for data intensive workloads. Every API gets its own CI/CD pipeline on GitHub Actions and automated tests with Jest or Mocha.
Compliance is built in from week one. For healthcare clients, we add HIPAA logging and BAA signing. For fintech, we enforce PCI-DSS tokenization and audit trails. For SaaS, we configure SOC 2 compliant logging and access controls. No afterthoughts, no rework.
How IRPR Differs from Other API Consultants
Most API development firms bill hourly and deliver late. IRPR gives you a fixed price and a hard deadline.
Generic dev shops often start coding without a clear architecture, leading to security holes and slow endpoints. They hand off code with no tests and no deployment scripts. When your API needs to scale from 100 to 100,000 users, that first build breaks.
IRPR starts every project with a Roadmap phase: a 2-week deep dive that produces a documented API design, database schema, and deployment plan. You get a fixed price quote before any code is written. No surprises, no scope creep.
- Hourly billing with no cap on cost
- No documented API design upfront
- Minimal or no automated tests
- No CI/CD pipeline included
- No load testing before launch
- No compliance scaffolding
- Fixed price quoted in week 2
- 2-week Roadmap with full API spec
- Automated test suite with 90%+ coverage
- CI/CD on GitHub Actions included
- Load testing up to 10K req/s included
- HIPAA, PCI, SOC 2 compliance built in
Our Process for Building Backend APIs
We follow a 4-phase process that produces a production-ready API in 12-14 weeks.
Phase 1 is the 2-week Roadmap. We map out your data model, endpoint list, auth flows, and deployment architecture. You get a Swagger spec and a fixed price quote before we write a line of code.
Phase 2 is development. We build the API in 6-8 weeks using Node.js, Express, Prisma, and PostgreSQL. Every endpoint gets unit tests and integration tests. Phase 3 is a 2-week hardening pass: load testing, security review, and production configuration. Phase 4 is deployment with monitoring via Sentry and Datadog.
What Ships with Every Backend API
You are not just getting code. You get a complete, deployable system.
Every project includes automated CI/CD pipelines, documented endpoints, and a monitoring dashboard. There are no hidden deliverables. Everything is in scope and priced upfront.
- Source code in your GitHub or GitLab repo
- CI/CD pipeline with GitHub Actions or GitLab CI
- Swagger/OpenAPI documentation for every endpoint
- Automated test suite (unit + integration) with 90%+ coverage
- Database schema (PostgreSQL or MongoDB) with migrations
- Authentication and authorization (JWT, OAuth2, or API Keys)
- Logging and error tracking via Sentry
- Load testing results up to 10K req/s
- Deployment scripts for AWS, GCP, or Azure
- Post-launch support for 30 days
What we ship in this practice.
E-commerce Product API
Built a REST API for a fashion marketplace handling 50K daily searches. Used Node.js, PostgreSQL, and Algolia for search. Reduced page load time from 3s to 200ms.
Healthcare Patient Portal API
Designed a HIPAA-compliant GraphQL API for a telehealth platform. Unified patient records from 3 legacy databases. Cut appointment booking time by 60%.
Fintech Payment Gateway API
Developed a PCI-DSS compliant payment API with Stripe Connect. Handled $2M in monthly transaction volume. Full tokenization and audit logging included.
SaaS Billing Integration API
Built an integration layer between a subscription platform and Salesforce. Synced invoices, contacts, and payment history in real time. Saved the client 20 hours/week of manual data entry.
Real Estate MLS Data API
Created a backend that ingests MLS listings from 12 regional databases. Normalized data into a single API. Powered a search app used by 500+ agents.
Logistics Real-Time Tracking API
Built a WebSocket-based API for a delivery fleet tracking platform. Connected 2000+ drivers via GPS data. Reduced customer support queries by 40% because customers could track packages live.
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 is $80K to $250K.
Senior engineers only
Every consultant has 8+ years of backend experience. No junior developers. No offshore outsourcing. You talk directly to the person writing your code.
12-week MVP, guaranteed
We have shipped over 200 products on time. Our process is repeatable. If we miss the deadline on your end, we discount the final invoice by 10%.
Compliance built in, not added on
HIPAA, PCI-DSS, and SOC 2 requirements are handled in the architecture phase. We do not bolt on security after the fact. It is part of the spec from week 1.
Full code ownership
You own 100% of the source code. There are no royalties, no licensing fees, no vendor lock-in. You can take the code to any in-house team after delivery.
Production monitoring included
Every API ships with Sentry error tracking and Datadog performance dashboards. We monitor your first 30 days in production and fix any issues within 4 hours.
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.