Expert Node.js API Development PartnerAPI Development
Build APIs that scale to millions of requests per day. We deliver a production-ready Node.js API in 12 weeks at a fixed price.
IRPR builds high-performance Node.js APIs using Express.js, Fastify, or Next.js API routes. We implement REST, GraphQL (Apollo), and WebSocket endpoints with PostgreSQL, Redis, and message queues like RabbitMQ or Bull. Our team writes TypeScript-first code with automated tests covering 90%+ lines.
Every project ships in 8 to 12 weeks at a fixed price between $80,000 and $250,000. We handle API architecture, database design, authentication (JWT, OAuth 2.0), rate limiting, and CI/CD deployment to AWS, GCP, or Azure. HIPAA, PCI-DSS, and SOC 2 compliance available.
CTOs hire us when their in-house team is at capacity. Startup founders hire us to build the first API for their SaaS product. Engineering directors hire us to refactor a slow monolithic API into a microservices architecture.
Types of software we ship.
RESTful API
Stateless endpoints returning JSON over HTTP. Built with Express.js, validated with Zod, documented with OpenAPI 3.0.
GraphQL API
Single endpoint with schema-defined queries and mutations. Uses Apollo Server, DataLoader for batching, and subscriptions for real-time data.
WebSocket API
Persistent, bidirectional connections for chat, live updates, and streaming data. Built on ws or Socket.IO with Redis pub/sub.
Microservices Gateway API
Central gateway that routes requests to internal services. Implements rate limiting, auth, and logging using Express Gateway or KrakenD.
Serverless API
Event-driven endpoints on AWS Lambda or Cloud Functions. Uses API Gateway, DynamoDB, and step functions for orchestration.
B2B Integration API
RESTful APIs designed for third-party integrations. Includes webhook dispatch, HMAC signatures, and quota management per API key.
Internal ETL API
Pipeline APIs that transform and move data between systems. Built with Bull queues, scheduled jobs, and database triggers.
Admin Dashboard API
Backend for internal tools and dashboards. Provides aggregate endpoints, CSV exports, and role-based access control (CASL).
We build for every business type.
SaaS companies scaling their platform
Fintech firms handling sensitive transactions
Healthcare organizations needing HIPAA compliance
Ecommerce brands building custom checkout experiences
Enterprise teams modernizing legacy systems
What you get when you hire an expert Node.js API development partner
We do not just write code. We deliver a production-ready API with documentation, tests, and deployment scripts.
Every API we build ships with automated test coverage exceeding 90%. We use Jest for unit tests, Supertest for integration tests, and Cypress for end-to-end testing against the API. Running the test suite is a gate in every pull request on GitHub.
Documentation is generated automatically from your OpenAPI spec using Swagger UI or Redoc. Clients get an interactive API explorer they can use to test endpoints before they even write their frontend code. That saves an average of 4 weeks in frontend development time.
The difference between a generic developer and an expert Node.js API development partner
Not every team that writes JavaScript can build an API that handles millions of requests securely.
Many freelance developers or small agencies build APIs that work on day one but break under load. They skip rate limiting, use no caching layer, and write untyped JavaScript. After 3 months you need a rewrite, and you have already paid more than a fixed-price project would have cost.
IRPR starts every API project with a 2-week Roadmap phase where we define the data model, API endpoints, authentication strategy, and deployment architecture. You get a fixed quote for the full scope. No surprises, no rewrites, no hidden costs.
- Hourly billing with unknown total cost
- No automated tests until bugs appear
- Code written in plain JavaScript
- No CI/CD pipeline
- No documentation until you ask for it
- Single developer works alone, limited bus factor
- Fixed price based on 2-week Roadmap scope
- 90%+ test coverage from day one
- TypeScript with strict typing and linting
- CI/CD on GitHub Actions with auto-deploy
- OpenAPI docs generated and hosted automatically
- Team of senior engineers, no single point of failure
How we build your Node.js API in 8-12 weeks
Our process from idea to production follows four phases. Each phase ends with a deliverable you can review and approve.
We do not start coding on day one. The first phase is a structured discovery that produces a concrete roadmap and a fixed price. This avoids the scope creep that kills 90% of API projects.
After you approve the roadmap, we build the API in 2-week sprints. Every sprint ends with a demo of working endpoints deployed to a staging environment. You can see progress and give feedback continuously.
What ships with every Node.js API project
You own everything at the end. No black boxes, no proprietary code, no vendor lock-in.
We deliver the full source code in your private GitHub repository. All dependencies are open source or provided by you. We do not use any internal frameworks or libraries that you cannot maintain yourself.
Infrastructure is defined as code in Terraform or Pulumi. You can deploy to any cloud provider with one command. Your operations team can manage it without calling us.
- Full TypeScript source code in your private GitHub repo
- Automated test suite (Jest, Supertest) with 90%+ coverage
- OpenAPI 3.0 spec with hosted Swagger UI
- CI/CD pipeline on GitHub Actions deploying to AWS or GCP
- Database schema migrations (PostgreSQL or MongoDB)
- Docker Compose setup for local development
- Postman collection or Insomnia workspace for API testing
- Deployment runbook and environment configuration docs
- 30-day warranty covering bugs found in production
- Admin user session with basic monitoring (Sentry, LogRocket)
What we ship in this practice.
Fitness Tracker API for a Health Startup
Built a GraphQL API that ingests data from wearables via WebSocket and serves aggregated stats to a React Native app. Reduced query time from 1800ms to 45ms using Redis caching. Stack: Apollo Server, PostgreSQL, Redis, AWS Lambda for data ingestion.
Payment Reconciliation API for a Fintech
Developed a RESTful API that reconciles payments from Stripe, PayPal, and bank transfers into one ledger. Automated 32 hours of manual accounting work per week. Stack: Express.js, Stripe API, PostgreSQL, Bull queues for async processing.
Inventory Sync API for a D2C Brand
Created a real-time inventory sync API between Shopify, a warehouse management system, and a custom mobile app. Reduced overselling incidents by 100%. Stack: Express.js, Shopify GraphQL Admin API, PostgreSQL, Redis pub/sub.
Multi-Tenant SaaS API for a B2B Platform
Designed a multi-tenant API with per-company rate limiting and data isolation. Handles 500 requests per second at peak. Stack: Fastify, MongoDB with tenant indexes, OAuth 2.0, AWS ECS with auto-scaling.
Patient Data API for a Telemedicine Platform
Built a HIPAA-compliant API that integrates with Epic EHR via FHIR. Secure audit logging and encrypted data at rest. Stack: Express.js, FHIR R4, PostgreSQL with column-level encryption, AWS KMS.
Property Listing API for a Real Estate SaaS
Developed a GraphQL API that aggregates MLS data from 12 different regional services. Normalizes listings into a single schema and serves a React frontend. Stack: Apollo Server, PostgreSQL, Redis, custom MLS parsers.
Why teams hire us.
Senior engineers only, no juniors
Every developer on your project has 8+ years of experience in Node.js. We do not staff juniors or offshore trainees. The person you talk to in the discovery call writes code on the first sprint.
Fixed price with no hourly billing
After the 2-week Roadmap phase, you get a fixed quote for the entire project. You never see an invoice with hours. If the scope stays the same, the price stays the same, even if we discover complexity.
HIPAA and PCI-DSS compliance built in
We build healthcare APIs that comply with HIPAA and fintech APIs that comply with PCI-DSS. Audit logging, encryption, and access controls are not afterthoughts. They are part of every endpoint from day one.
Full code ownership and no lock-in
All source code is written in your private repo using standard open-source libraries. No proprietary frameworks. You can take the code to any team after the project ends. We provide a 30-day handover period.
50+ countries deployed on AWS, GCP, Azure
Our APIs run in production across 50 countries. We deploy to any cloud you prefer using Terraform. Each deployment includes CloudWatch or Stackdriver monitoring, alerting, and auto-scaling policies.
98% on-time delivery across 200+ projects
We have shipped over 200 software products, and 98% of them delivered on or before the scheduled date. Our fixed-price model and phased roadmap are the reason. No death marches, no missed deadlines.
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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