hire a senior node.js api development vendor to build production-ready apisnode.js api
Your team is busy shipping features. We build your senior Node.js API development project on a fixed timeline for a fixed price.
IRPR is a senior Node.js API development vendor that builds production-ready APIs using Node.js 20, Express.js, Fastify, and NestJS. We connect your mobile frontend, web app, or third-party service to a secure, high-performance backend with PostgreSQL, MongoDB, Redis, or Kafka.
Every API ships within 8 to 12 weeks at a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, and SOC 2 so your data layer is audit-ready from day one.
CTOs hire us when their in-house team is maxed out. Startup founders use us to build their core backend before raising a seed round. Product managers bring us in to migrate legacy REST APIs to modern microservices on AWS or GCP.
Types of software we ship.
REST API
Stateless endpoints with versioning, rate limiting, and OpenAPI docs. Built with Express.js and PostgreSQL.
GraphQL API
Single endpoint with Apollo Server, data loaders, and schema stitching. Ideal for mobile and complex frontends.
Microservices API
Decoupled services communicating over gRPC or RabbitMQ. Each service deployed independently on Docker and Kubernetes.
WebSocket API
Real-time bidirectional communication with Socket.io or ws. Used for chat, live dashboards, and collaborative editing.
Third-Party Integration API
Wrap Stripe, HubSpot, Salesforce, or QuickBooks with a unified Node.js layer. Handles webhooks and OAuth refresh.
B2B API Platform
Multi-tenant API with usage metering, API keys, and developer portal. Deployed with rate limiting per tenant.
Internal Backend API
Private APIs for your own mobile apps or web dashboards. Includes authentication, audit logging, and background job queue.
Event-Driven API
Stream processing with Kafka or Redis Streams. Publish events for downstream consumers like analytics or notification services.
We build for every business type.
SaaS platforms
Healthcare
Fintech & payments
Ecommerce & logistics
Media & content
Why you need a senior node.js api development vendor
A junior developer can write an endpoint. A senior vendor delivers a system that holds up under load, passes audits, and ships on time.
When your backend becomes the bottleneck for your mobile app or web platform, you need more than just another coder. You need a team that has built APIs for 200+ products across 50+ countries. IRPR has delivered Node.js backends for fintech platforms handling $50M in monthly transactions and healthcare systems that passed HIPAA audits on the first try.
Every company we work with gets senior Node.js engineers who have shipped production APIs with PostgreSQL, Redis, Kafka, and Kubernetes. We write automated tests with Jest and Supertest, set up CI/CD on GitHub Actions, and deploy to AWS ECS or GCP Cloud Run. The result is an API you can trust from day one.
What you avoid by hiring IRPR as your senior node.js api development vendor
The wrong dev shop costs you time, money, and compliance headaches. Here is the difference.
Many development shops assign junior developers to your project after the sales call. They use boilerplate code, skip automated tests, and hand off a monolith that breaks under load. You end up paying hourly for debugging and rewriting.
IRPR assigns only senior Node.js engineers with at least 6 years of production experience. We write integration tests, set up load testing with k6, and deliver a deployable Docker Compose or Kubernetes config. Our fixed-price model means no hourly surprises.
- Junior developers you never meet
- Hourly billing with scope creep
- No automated tests
- Monolithic Express app
- No CI/CD pipeline included
- No compliance documentation
- Senior Node.js engineers with 6+ years experience
- Fixed price agreed in week 2 Roadmap phase
- Jest + Supertest integration tests written alongside endpoints
- Microservices or modular monolith based on your traffic needs
- CI/CD on GitHub Actions with Sentry error tracking
- HIPAA / PCI / SOC 2 audit-ready code and docs
How we build your senior node.js api development project in 8-12 weeks
We follow a four-phase process that ensures you get exactly what you need, for a fixed price, within a fixed timeline.
Every project starts in the Roadmap phase. During week 1 to week 2, we run discovery sessions, map your data model, and define every endpoint with request/response schemas. We deliver a detailed document with wireframes, API specs, and a fixed quote.
The Product phase runs weeks 3 through 10. We build the API in two-week sprints. You get a staging environment after the first sprint and can test real endpoints. The Release phase in weeks 11 and 12 covers load testing, security review, and deployment to your production environment.
What ships with every senior node.js api development engagement
We deliver more than just code. Every project includes the complete setup needed to run and monitor your API in production.
When you hire IRPR as your senior Node.js API development vendor, you get a turnkey backend system. The source code lives in your GitHub repo from day one. We configure CI/CD pipelines, error monitoring, and logging so your team can take over immediately after launch.
We also provide architecture diagrams, API documentation via Swagger/OpenAPI, and a post-launch support runbook. No knowledge transfer calls needed. Everything is documented and automated.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions with automated tests
- Sentry error tracking and performance monitoring
- Swagger/OpenAPI documentation at /docs
- Docker Compose and Kubernetes deployment files
- Load test script using k6
- Postman collection with sample requests
- Architecture diagram (draw.io source included)
- Database migration scripts and seed data
- Post-launch support runbook
What we ship in this practice.
Payment gateway aggregation API
Built a single API that routes transactions through Stripe, PayPal, and Braintree based on user region. Reduced failed payment rate by 15%. Tech stack: Node.js 20, Express.js, PostgreSQL, Redis, Stripe API.
Real-time telemetry WebSocket API
Delivered a WebSocket service that ingests 10,000 sensor readings per second for an industrial IoT client. Data streams processed through Kafka and stored in TimescaleDB. Down from 15 requests to under 10ms p99 latency.
HIPAA-compliant patient portal API
Created a REST API for a healthcare startup connecting mobile app to EHR system. Passed HIPAA audit without a single finding. Uses Node.js 20, Fastify, PostgreSQL with row-level security, and AWS KMS for encryption.
Multi-tenant SaaS billing API
Built a subscription management API with usage-based metering for a B2B SaaS company. Integrated with Stripe and handled 5,000 tenants. Reduced billing reconciliation time from 10 hours per month to 0 hours.
Ecommerce inventory sync microservice
Developed a microservice that syncs inventory across Shopify, Amazon, and the client's own warehouse system in real time. Cut overselling incidents by 90%. Uses NestJS, RabbitMQ, and MongoDB.
Content recommendation engine API
Delivered a personalized content feed API for a media platform with 2 million monthly users. Uses Node.js, Redis for caching, and a lightweight machine learning model served via TensorFlow.js. Average response time under 50ms.
Why teams hire us.
Fixed price, no hourly surprises
We quote a fixed price after week 2 Roadmap phase. If requirements change, we re-quote before building. 98% of our projects finish within the agreed budget.
Senior engineers only
We do not use junior developers. Every engineer on your project has at least 6 years of Node.js experience. Average tenure on our team is 7 years.
Compliance built in from day one
We write HIPAA, PCI-DSS, and SOC 2 compliant code as standard practice. Your API passes audits without retrofit. We have shipped 30+ compliant APIs in the last 2 years.
Full ownership with no lock-in
You own all source code, documentation, and infrastructure from day one. No license fees, no platform dependency, no hidden costs.
On-time delivery backed by data
98% of our projects ship within the agreed timeline. We use two-week sprints with demos every sprint so there are no surprises in week 12.
We handle the full stack deployment
We deploy your API to AWS or GCP with load balancing, auto-scaling, and monitoring. You get a production-ready system, not just code files.
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.