Node.js Backend Development Case StudiesCase Studies
Real projects, real results. See how we built scalable Node.js backends in 8-12 weeks with fixed pricing.
IRPR builds Node.js backends using Express, TypeScript, PostgreSQL, Redis, and Docker. Our case studies document every project from idea to release, showing real performance metrics and architecture decisions.
Each case study covers an 8-12 week MVP build with fixed pricing between $80K and $250K. We ship production-ready code with CI/CD, monitoring (Sentry, Datadog), and full documentation.
Our clients include CTOs scaling their SaaS platform, startup founders launching an MVP in 3 months, and enterprise teams migrating legacy backends to Node.js. Read how they solved latency, security, and deployment challenges.
Types of software we ship.
Real-time chat backend
WebSocket-based chat server with Socket.IO, Redis pub/sub, and message queuing for 100k+ concurrent users.
API gateway
Single entry point for microservices using Express Gateway or Kong, with rate limiting, auth, and logging.
Microservices backend
Decoupled services with RabbitMQ, gRPC, and Kubernetes orchestration. Each service scales independently.
E-commerce backend
Order management, inventory sync, payment processing (Stripe), and webhooks – all on Node.js with PostgreSQL.
SaaS backend
Multi-tenant architecture with Role-based access control, subscription billing (Stripe), and usage analytics.
Data processing pipeline
Batch and stream processing with Kafka, BullMQ, and AWS Lambda. Handles 10GB+ daily data load.
Authentication service
OAuth2, JWT, and SAML integration for enterprise SSO. Uses Passport.js and Redis for session storage.
Webhook system
Reliable webhook delivery with retries, idempotency keys, and event sourcing. Handles 1M+ events/month.
We build for every business type.
Healthcare
Fintech
E-commerce and Retail
SaaS
Real Estate and Property
Stats from Node.js Backend Case Studies
Every case study reports real numbers that matter to CTOs and founders.
Across 200+ Node.js projects, we measured API response times under 200ms at 10k RPM, database query latency below 50ms after indexing, and deployment rollouts faster than 5 minutes with zero downtime.
Our clients see 40% reduction in infrastructure costs after migrating to Node.js microservices, and 99.9% uptime on production systems after implementing proper monitoring and auto-scaling.
How We Build Node.js Backends Differently
Generic dev shops build what you ask. IRPR builds what you need to scale.
Most agencies work hourly and change scope mid-project. They use boilerplate code and skip testing. Their Node.js backends often break under load and have security gaps from skipped audits.
IRPR works on fixed price with a clear Roadmap. Our senior engineers write tests first (Jest, Supertest), use TypeScript for type safety, and set up Datadog monitoring from day one. We ship code to your repo, not ours.
- Hourly billing with scope creep
- Junior developers on your account
- No architecture review
- Ships without tests
- No monitoring or alerting
- Hands off code at launch
- Fixed price from Roadmap phase
- Senior engineers only (7+ years exp)
- Architecture decision record (ADR)
- 100% test coverage on critical paths
- Sentry + Datadog pre-configured
- Full code ownership – you own the repo
Our 4-Phase Build Process for Node.js Backends
From idea to production in 12 weeks or less.
We follow a repeatable framework: Idea, Roadmap, Product, Release. Each phase ends with a milestone where you approve the next step. No surprises.
The Roadmap phase (week 2) produces a detailed spec with API contracts, database schema, and timeline. Fixed price is locked then. You can pause or cancel at any milestone.
What Ships with Every Node.js Backend
Every project includes these production-ready deliverables by default.
You get more than just code. We hand over everything needed to run, debug, and extend the system without us. No lock-in, no hidden dependencies.
All assets are transferred to your private GitHub repo. You own the IP from day one. We also provide onboarding docs and a 30-day post-launch support window.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Docker Compose and production Dockerfiles
- Sentry error tracking and performance monitoring
- Datadog dashboards for API latency and error rates
- Postgres database with migration scripts (node-pg-migrate)
- Unit and integration tests with Jest (80%+ coverage)
- API documentation generated with Swagger/OpenAPI
- Load test scripts using k6
- Deployment runbook and architecture diagram
What we ship in this practice.
Real-time chat backend for telehealth platform
Replaced a slow polling system with WebSocket-based messaging (Socket.IO, Redis). Handles 50k concurrent connections. Reduced message latency from 2 seconds to 150ms. Tech stack: Node.js, Express, Redis, PostgreSQL.
API gateway for fintech startup
Built a unified gateway (Express Gateway) that aggregates 12 microservices. Added rate limiting and JWT auth. Handles 20k requests/second with 99.99% uptime. Tech stack: Node.js, Express Gateway, MongoDB, RabbitMQ.
E-commerce backend for multi-vendor marketplace
Developed inventory sync, order management, and Stripe payment splitting. Processed 5,000 orders/day in first month. Cut manual reconciliation time by 80%. Tech stack: Node.js, TypeScript, PostgreSQL, Stripe, BullMQ.
SaaS backend with subscription billing
Multi-tenant Node.js backend with Stripe subscriptions and RBAC. Onboarded 300+ companies in 60 days. Billing accuracy 100% with automated invoice generation. Tech stack: Node.js, Express, PostgreSQL, Redis, Stripe.
Data pipeline for real estate platform
Ingested MLS data from 200+ sources using Kafka and Node.js workers. Processed 10M+ records daily. Reduced data freshness from 24 hours to 5 minutes. Tech stack: Node.js, Kafka, AWS Lambda, PostGIS, Elasticsearch.
Authentication service for edtech platform
Centralized SSO with OAuth2, SAML, and social logins using Passport.js. Handles 1M+ logins/month with 99.98% auth-success rate. Tech stack: Node.js, Express, Redis, MongoDB, Okta integration.
Why teams hire us.
Fixed price from week 2
After the Roadmap phase (week 2), we lock the price. No hourly billing. No scope creep. You know the cost before we write a line of production code.
Senior engineers only
Every developer has 7+ years of Node.js experience. We do not staff juniors or offshore teams. You work with one consistent senior team throughout the project.
8-12 week MVP delivery
We deliver a production-ready Node.js backend in 8 to 12 weeks. Our framework (Idea-Roadmap-Product-Release) keeps sprints tight and milestones clear.
Full code ownership
You own the IP from day one. Code is built in your GitHub repo. We never use proprietary frameworks or lock you into our tooling.
Built for compliance
We handle HIPAA, PCI-DSS, SOC 2, FERPA, and ISO 9001 requirements. Our Node.js backends include audit logs, encryption at rest, and role-based access by default.
Async-first communication
We work across 50+ countries using async updates (Slack, Linear, Notion). No mandatory standups. You get a weekly video walkthrough of progress.
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.