tech4ze

Node.js development

We engineer Node.js services that handle thousands of concurrent connections at once: streaming APIs, real-time collaboration, and event-driven platforms built to scale horizontally from day one.

In short

Node.js, at a glance

  • The non-blocking event loop handles huge concurrency on modest hardware, so your infra bill stays small.
  • Native streams and an event-driven core make live data, sockets and queues feel effortless.
  • JavaScript and TypeScript everywhere means shared models, shared validation and faster teams.
  • npm's 2M+ packages mean we rarely reinvent the wheel. We assemble proven parts.

Why Node.js

Node.js in production.

Node.js runs JavaScript on the server with a single-threaded, non-blocking event loop. That makes it exceptional at I/O-heavy workloads: APIs, gateways, streaming, chat and anything that has to talk to a lot of clients at once.

We pair it with TypeScript end-to-end, so the same types flow from your database to your frontend. The result is fewer integration bugs, faster onboarding for new engineers, and a codebase that's a pleasure to refactor as the product grows.

Blazing async I/O

The non-blocking event loop handles huge concurrency on modest hardware, so your infra bill stays small.

Built for real-time

Native streams and an event-driven core make live data, sockets and queues feel effortless.

One language, full stack

JavaScript and TypeScript everywhere means shared models, shared validation and faster teams.

The largest ecosystem

npm's 2M+ packages mean we rarely reinvent the wheel. We assemble proven parts.

Scales horizontally

Stateless services cluster cleanly behind a load balancer and containerise without drama.

Battle-tested at scale

It powers Netflix, PayPal and LinkedIn, and a huge, active community stands behind it.

Concurrency, not threads

Event-driven backends, real-time systems and APIs that stay fast under load.

How we engineer
with Node.js.

The shapes our Node.js work usually takes. Every engagement is scoped to your goals, so pick a track to see what's included.
Colourful source code on a dark editor screen.

How we work

Senior engineers, accountable to outcomes. Every change typed, reviewed and tested.

  • 01Custom web application development

    Full-stack products built on Node.js with a typed API layer and a modern frontend, architected for your domain rather than a boilerplate.

    • Domain-driven service design
    • TypeScript end-to-end
    • Test-covered business logic
  • 02API development & integration

    REST, GraphQL and gRPC APIs that expose your platform cleanly and connect to the third parties your business runs on.

    • OpenAPI / schema-first contracts
    • Auth, rate-limiting & versioning
    • Payment, CRM & ERP integrations
  • 03Real-time application development

    Chat, dashboards, multiplayer and live collaboration powered by WebSockets, SSE and pub/sub backbones.

    • WebSocket & Socket.IO
    • Presence & sync engines
    • Redis / Kafka event pipelines
  • 04Microservices architecture

    Decompose the monolith into independently deployable services with clear contracts and resilient messaging.

    • Service boundaries & contracts
    • Message queues & sagas
    • Containerised, observable services
  • 05E-commerce & SaaS platforms

    High-throughput commerce backends and multi-tenant SaaS engines with billing, entitlements and analytics.

    • Headless commerce APIs
    • Usage-based billing
    • Multi-tenant data isolation
  • 06Maintenance, support & migration

    Modernise legacy Node services, lift them to the current LTS, and keep them healthy with monitoring and SLAs.

    • LTS upgrades & hardening
    • Performance profiling
    • 24/7 monitoring & on-call

The stack we pair
with Node.js.

Node.js rarely ships alone. These are the proven companions we reach for, chosen to last for years, not just this quarter.

Frameworks

ExpressNestJSFastifytRPCHono

Data

PostgreSQLMongoDBRedisPrismaDrizzle

Messaging

KafkaRabbitMQBullMQNATS

Run & ship

DockerKubernetesAWS LambdaPM2GitHub Actions

How we build it

Architecture built to last.

A Node.js platform we'd ship, layer by layer — built to stay fast as traffic grows.

01Client & edge
Web / mobileCDNAPI gateway
02API layer
REST / GraphQLtRPCAuth & rate limiting
03Services
Domain servicesWebSocket / SSEBackground workers
04Data & messaging
PostgreSQLRedisKafka / queues
05Run & observe
Docker / KubernetesOpenTelemetryCI/CD

A look at what we've shipped.

Platforms, products and infrastructure we've taken from first commit to real scale.
A candlestick trading chart on a dark trading screen.

A real-time wealth platform built for scale

Re-architecting a legacy investment portal into a modular, real-time platform that holds up under heavy concurrent load.

View case study

A six-step cycle, repeated until it's right.

Transparent, predictable and collaborative. You always know what's shipping next and why.

Discovery

We map the business, users and constraints, then pressure-test the problem before a line of code.

Planning

Architecture, scope, and a sprint roadmap with clear milestones, budgets and success metrics.

Design

Research-led UX and high-fidelity interfaces, validated with prototypes before build.

Development

Senior-led engineering in two-week sprints with demoable increments and continuous review.

Testing & QA

Automated and manual testing, security review and performance hardening before release.

Launch & Care

Confident deployment, monitoring and SLA-backed support that keeps things humming.

Node.js questions, answered.

Still unsure if Node.js is right for your project? A senior engineer will tell you straight on a free call.

Non-blocking I/O for very high concurrency, a single language across the whole stack, the largest package ecosystem in software (npm), and a mature toolchain that's proven at the scale of Netflix and PayPal.

APIs and microservices, real-time apps (chat, dashboards, collaboration), streaming services, e-commerce and SaaS backends, command-line tools, and serverless functions. It excels wherever I/O, not raw CPU, is the bottleneck.

Every engagement can include SLA-backed monitoring, alerting and on-call, scheduled LTS upgrades, dependency and security patching, and a clear escalation path. You always know who to call and how fast they'll respond.

Yes. With TypeScript, well-defined service boundaries, observability and horizontal scaling, Node.js runs mission-critical systems for some of the largest companies in the world. We architect for that from the first sprint.

It depends on scope, integrations and SLAs. After a free consultation we give you a clear, fixed-scope estimate, and recommend the engagement model (fixed, dedicated team or staff augmentation) that fits your budget and timeline.

Let's build

Ready to build with Node.js?

Book a free 30-minute consultation. We'll pressure-test your idea and map a Node.js approach, whether or not we end up working together.

What to expect

What happens after you hit send.

  1. You book in 60 seconds

    Share a few details below. No lengthy forms, no sales gatekeeping.

  2. A 30-minute strategy call

    You talk to a senior engineer about your actual problem, not an account manager.

  3. A clear path forward

    You leave with concrete recommendations and a rough scope, whether or not we work together.

  • 100% free
  • Senior engineer
  • NDA on request
  • Reply in 1 business day

Prefer email?

hello@tech4ze.com
  • Nepal

    House 6/12, Adarshtole, Katahari - 2, Morang, Koshi

  • Australia

    13 Basnett Street, Kurralta Park, Adelaide, South Australia 5037

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