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Real-time apps and APIs built at any scale.

Event-driven Node.js backends that hold up under real concurrent load. We build, deploy, and run real-time APIs and scalable microservices for teams who can't afford downtime.

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Node.js runs in production at

Node.js by the numbers

Why product teams pick Node for their most concurrent infrastructure.

yrs

Production ready / Node.js shipped in 2009 and has run critical backends at Netflix, LinkedIn, and PayPal for over a decade.

2M+

npm packages

npm packages / The largest package registry in any language. A library exists for almost anything you'd need.

~110K

GitHub stars

GitHub stars / The nodejs/node repository is actively maintained under the OpenJS Foundation.

yrs

reverseBits on Node / Shipping event-driven backends for US, UK, and EU teams since 2021.

Is Node.js right for your product?

Node.js wins when you need high concurrency, real-time data, or a shared language across frontend and backend. It's a weaker fit for CPU-bound number crunching or heavy ML pipelines.

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Real-time applications

Chat, live dashboards, collaborative editors, multiplayer. Node's event loop and WebSocket support hold thousands of open connections on a single process.

High-traffic API gateways

Non-blocking I/O lets Node sit in front of several services, fan out requests, and return a composed response without tying up threads.

Full-stack JavaScript teams

One language and one type system across React/Next.js on the front and Node on the back. Reuse validators, share contracts, cut context switching.

What a reverseBits Node.js project delivers

We ship backends that survive real production traffic.

Event-driven architecture

Services built around Node's async model. They handle spikes instead of queuing up, so your 99th percentile doesn't slide on busy days.

50KPeak concurrent WebSocket connections on one project.

Scalable microservices

Breaking monoliths into focused Express or NestJS services. Containerised with Docker, orchestrated on ECS or Kubernetes, sized for your actual traffic.

35%Engineering cost reduction vs polyglot stack

Real-time WebSockets

Socket.io paired with Redis pub/sub. You scale horizontally without losing connection state, whether the workload is chat, telemetry, or a live order book.

<80msP95 response time across our Node.js APIs

Database and cache layer

PostgreSQL with Prisma for relational data. MongoDB for document stores. Redis in front for read-heavy paths. Slow queries caught in staging, not at 2am.

100%TypeScript coverage on all new Node.js projects

CI/CD with zero-downtime deploys

GitHub Actions pipelines that run type checks, tests, and dependency audits before every deploy. Rolling releases into AWS with automatic rollback on health-check failure.

6wkAverage time to production-ready Node.js MVP

API security and observability

JWT rotation, per-route rate limits, OWASP Top 10 mitigation, and OpenTelemetry traces flowing to Datadog or New Relic. If something fails, you'll know where.

0Security incidents across all Node.js projects in 5 years

Node.js vs the alternatives

An honest look at how Node stacks up against other serious backend options.

I/O concurrency

Node.js

Very high (event loop)

Python

High (asyncio)

Java

Medium (thread pool)

Ruby on Rails

Low (blocking)

Language unity

Node.js

Same JS/TS front to back

Python

Backend only

Java

Backend only

Ruby on Rails

Backend only

Setup velocity

Node.js

Fast, unopinionated

Python

Fast, type-first

Java

Heavy config

Ruby on Rails

Fast, opinionated

CPU-bound workloads

Node.js

Worker threads needed

Python

Strong (NumPy, scikit)

Java

JVM is solid

Ruby on Rails

Moderate

Criteria	Node.jsOUR STACK	Python	Java	Ruby on Rails
I/O concurrency	Very high (event loop)	High (asyncio)	Medium (thread pool)	Low (blocking)
Language unity	Same JS/TS front to back	Backend only	Backend only	Backend only
Setup velocity	Fast, unopinionated	Fast, type-first	Heavy config	Fast, opinionated
CPU-bound workloads	Worker threads needed	Strong (NumPy, scikit)	JVM is solid	Moderate

Node.js projects we have shipped

Representative project patterns and outcomes.

Penningmeester

Personal finance manager tracking spending and forecasting budgets automatically.

View Project

Content Planner App

Content planning and scheduling tool for multi-channel editorial workflows.

View Project

Koyyo

Dynamic QR platform with configurable auto-refresh and real-time delivery.

View Project

Problems

Common Node.js problems and how we solve them.

The Problem

Callback hell and tangled control flow

Nested callbacks hiding errors, slowing down every new feature, making tests a chore.

Memory leaks and out-of-memory crashes

Retained closures, unbounded caches, unreleased stream buffers. Eventually the process kills itself and restarts.

A blocked event loop

CPU-heavy work sitting on the main thread: large JSON parsing, synchronous crypto, image manipulation. Every other request stalls behind it.

Our Solution

TypeScript with async/await

Callback-era code rewritten into typed, promise-based flows. Errors become catchable and the next engineer can read the file without a map.

V8 profiling and heap analysis

Attach the inspector, capture snapshots, find retainer paths, fix the leak. Then add guardrails so it doesn't come back.

Worker threads and job queues

Heavy work moves off the HTTP loop into worker threads or a BullMQ queue on Redis. The main loop stays responsive.

Node.js stack we ship on

Tools we use on Node.js engagements.

Node.js

TypeScript

Express

NestJS

Redis

PostgreSQL

Docker

AWS

Why reverseBits for Node.js?

We know JavaScript, but more importantly we know how the V8 engine behaves under load, where backpressure shows up in streams, and how event-driven code hides its bugs.

Years on Node stack

4.9

Clutch rating

24/7

Production support

Senior Node engineers

Engineers who've worked through Node's stream rewrites, the Promise landing, and worker_threads going stable. Not generalists borrowed from the frontend.

Load tests that mean something

Artillery and k6 scripts that simulate real traffic shapes. You'll know what your p95 looks like before your users do.

Zero-downtime releases

Rolling deploys with health checks and automatic rollback. Production doesn't skip a heartbeat when you ship.

Post-launch monitoring

OpenTelemetry traces, Datadog or New Relic dashboards, and alerts routed to your on-call, not ours.

Stop wrestling with blocking workers and overweight runtimes.

Node gives you concurrent throughput without the operational tax.

1Language across the stack

10k+Concurrent connections

50msp95 target

Node.js FAQ

Common questions about Node.js projects.

Ready to build your Node.js product?

Express when you want a minimum surface area and will bring your own structure. NestJS when you want decorators, dependency injection, and a convention-first layout that holds up across a team. A small API owned by one or two engineers usually does fine on Express. A ten-engineer team building twenty modules will get its value back out of NestJS fast.

Ready to build your Node.js product?

We'll map the architecture, give you a realistic timeline, and then engineer it.

Schedule strategy call Or leave us a message