Senior Node.js API Development DevelopersAPI Development
We build production-grade Node.js APIs on a fixed budget. Senior engineers only, 8-12 weeks to MVP.
IRPR builds senior Node.js API development teams for companies that need reliable, scalable backend systems. We use Node.js, Express.js, Fastify, PostgreSQL, Redis, and Docker to ship APIs that handle millions of requests per day.
Every project ships in 8-12 weeks with a fixed price range of $80K-$250K. Our APIs are built to HIPAA, PCI-DSS, and SOC 2 compliance standards. You own the full source code and infrastructure.
We work with CTOs at Series A startups who need a scalable API for their product, engineering VPs at mid-market SaaS companies migrating from monoliths, and product owners at healthcare platforms requiring HIPAA-compliant backend services.
Types of software we ship.
REST API
Stateless RESTful endpoints with Express.js or Fastify, JWT auth, rate limiting, and OpenAPI docs.
GraphQL API
GraphQL gateway with Apollo Server, data loaders, and real-time subscriptions via WebSockets.
Microservices API
Decoupled microservices with RabbitMQ or Kafka, Docker Compose, and Kubernetes orchestration.
Real-time API
WebSocket and SSE-based APIs for live dashboards, chat, and notifications using Socket.IO.
Third-party Integration API
API wrappers for Stripe, Salesforce, HubSpot, Twilio, and 100+ other services with retry logic.
Data Processing API
Batch and stream processing APIs with Bull queues, Redis, and PostgreSQL for ETL pipelines.
Admin Dashboard API
Role-based admin APIs with audit logs, pagination, and CSV export using Node.js and React.
Mobile Backend API
Mobile-optimized APIs for iOS and Android with push notifications, offline sync, and Firebase integration.
We build for every business type.
SaaS platforms
Healthcare
Fintech
Ecommerce
Enterprise
Node.js API Development by the Numbers
We have shipped over 200 custom APIs for clients in 50+ countries.
Our senior Node.js API development developers have built APIs that process 10,000+ requests per second. We use PostgreSQL as the primary database and Redis for caching. Every API includes automated tests, CI/CD pipelines, and monitoring with Sentry and Datadog.
Clients see 40% faster time-to-market compared to building in-house. Our fixed-price model means no budget surprises. The average API project costs between $80K and $250K and ships in 8-12 weeks.
Why Generic Dev Shops Fail at Node.js APIs
Most development shops lack senior Node.js engineers and ship insecure, unscalable APIs.
Generic dev shops assign junior developers to your API project. They skip load testing, ignore security best practices, and deliver code that breaks under real traffic. You end up paying hourly for rewrites.
IRPR assigns senior Node.js API development developers only. Every engineer has 8+ years of experience. We write tests before code, set up monitoring from day one, and hand you a production-ready API on a fixed budget.
- Junior or mid-level developers
- No load testing or security audits
- Hourly billing with scope creep
- No CI/CD or monitoring setup
- No compliance (HIPAA, PCI, SOC 2)
- Code is not documented
- Senior engineers only (8+ years)
- Load testing and OWASP security checks
- Fixed price, no surprises
- CI/CD with GitHub Actions and Sentry
- HIPAA, PCI-DSS, SOC 2 compliant
- Full documentation and OpenAPI specs
How We Build Your Node.js API
Our process takes your idea to a production API in 8-12 weeks.
We follow a four-phase process: Idea, Roadmap, Product, Release. Each phase has clear deliverables and a fixed price. You see progress every week.
In the Roadmap phase (week 2), we define the API contract, database schema, and deployment architecture. The Product phase (weeks 3-10) is where we build and test. Release (weeks 11-12) includes deployment, monitoring, and handoff.
What Ships with Your Node.js API
Every API project includes these deliverables by default.
We do not hand over unfinished code. Every API comes with production-grade infrastructure, tests, and documentation. You can deploy, maintain, and extend the API without us.
Our checklist ensures nothing is missed. From source code to monitoring dashboards, everything is included in the fixed price.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Docker containers and docker-compose files
- PostgreSQL database schema with migrations
- Redis caching layer
- OpenAPI 3.0 documentation
- Sentry error tracking and Datadog monitoring
- Load test results with k6 or Artillery
- Deployment runbook and architecture diagram
- 30-day post-release support
What we ship in this practice.
HIPAA-Compliant Patient Portal API
Built a Node.js API for a telehealth startup that handles patient intake, appointment scheduling, and medical record exchange. The API processes 5,000 requests per day with 99.9% uptime. Tech stack: Node.js, Express, PostgreSQL, Redis, AWS Lambda.
Payment Gateway Integration API
Developed a PCI-DSS compliant API that integrates Stripe and Plaid for a fintech platform. The API handles 20,000 transactions per month with 200ms average response time. Tech stack: Node.js, Fastify, Stripe API, Plaid API, PostgreSQL.
Real-Time Inventory Sync API
Created a WebSocket-based API for an ecommerce brand that syncs inventory across 3 warehouses and 2 marketplaces in real time. Reduced stockouts by 30%. Tech stack: Node.js, Socket.IO, Redis, PostgreSQL, Shopify API.
Multi-Tenant SaaS Analytics API
Shipped a GraphQL API for a B2B analytics platform that serves 500 tenants with role-based access. The API handles 10 million queries per month. Tech stack: Node.js, Apollo Server, PostgreSQL, Redis, Docker.
MLS Data Integration API
Built a REST API that aggregates MLS listings from 10 regional databases into a single endpoint for a real estate startup. Reduced data load time from 4 hours to 15 minutes. Tech stack: Node.js, Express, PostgreSQL, RabbitMQ.
Student Records API for EdTech
Developed a FERPA-compliant API for an EdTech platform that manages student enrollment, grades, and attendance. The API serves 50,000 students across 200 schools. Tech stack: Node.js, Fastify, PostgreSQL, Redis, AWS S3.
Why teams hire us.
Senior engineers only
Every developer on your project has 8+ years of Node.js experience. We do not staff juniors. Our team averages 12 years of backend engineering.
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 you see is the price you pay.
8-12 week delivery
We ship production-ready APIs in 8-12 weeks. Our process is optimized for speed without cutting corners. You can start generating revenue in 3 months.
Full code ownership
You own every line of code. We put the source code in your GitHub repo on day one. You can take the API to any team after release.
Compliance built in
We build APIs to HIPAA, PCI-DSS, and SOC 2 standards. Our engineers know how to handle PHI, PII, and financial data. No compliance rewrites needed.
Proven track record
We have shipped 200+ products for clients in 50+ countries. 98% of our projects deliver on time. Our clients include funded startups and Fortune 500 companies.
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.