Node.js BackendJavaScript all the way down
When your team lives in JavaScript, Node.js on the backend makes sense. We build performant APIs and real-time services with Express, Fastify, Hono, and tRPC — sharing types with your frontend.
Node.js is the most widely adopted server-side JavaScript runtime, enabling full-stack TypeScript development with a single language across frontend and backend. Its non-blocking event loop excels at I/O-heavy workloads — APIs, real-time services, and streaming applications. At A Major, we build Node.js backends with Express, Fastify, Hono, and tRPC, always with end-to-end type safety. The Node.js ecosystem is massive: npm hosts 2M+ packages. Combined with TypeScript, modern ORMs like Prisma and Drizzle, and deployment options from serverless to containers, Node.js is the pragmatic choice for teams that want to move fast without maintaining separate frontend and backend language expertise.
Quick start
npx create-fastify-app my-api
cd my-api
npm install
npm run devRead the full documentation at nodejs.org/en/docs
tRPC end-to-end types
Full TypeScript type safety from server to client — no code generation, no schema duplication.
Hono for edge APIs
Ultra-lightweight Hono APIs that run on Cloudflare Workers, Deno Deploy, and Bun with sub-millisecond cold starts.
Prisma ORM
Type-safe database queries with Prisma — schema-as-source-of-truth with auto-generated migrations.
WebSocket & SSE
Real-time event streams for live feeds, collaborative features, and server-pushed notifications.
BullMQ job queues
Redis-backed job processing with BullMQ — delayed jobs, priorities, rate limiting, and retry strategies.
Bun runtime
Faster startup, faster tests, and a built-in toolkit — npm-compatible with measurably better performance.
Why it's hard
Callback and async complexity
Deeply nested async operations, unhandled promise rejections, and memory leaks from event listeners are common pitfalls in Node.js applications.
Single-threaded CPU limitations
Node.js runs JavaScript on a single thread. CPU-intensive operations block the event loop — offload to worker threads, child processes, or native addons.
Dependency security risks
Deep npm dependency trees introduce supply chain risks. Regular auditing, lockfile integrity, and minimal dependency policies are essential.
Runtime fragmentation
Choosing between Node.js, Bun, and Deno — and between CommonJS and ESM — adds decision overhead. Standardizing early prevents ecosystem compatibility issues.
Best practices
Use TypeScript strictly
Enable strict mode in tsconfig.json. Type safety across the stack prevents entire categories of runtime errors.
Prefer Fastify or Hono over Express for new projects
Fastify offers 2× Express throughput with schema validation. Hono runs everywhere including edge runtimes.
Use structured logging with pino
pino is the fastest Node.js logger. Structured JSON logs integrate with log aggregation tools without parsing.
Implement graceful shutdown
Handle SIGTERM to close database connections, finish in-flight requests, and drain queues before process exit.
Frequently asked questions
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Technical Consultancy
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