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TECH STACKNODE.JS

High-concurrency Node.js back-ends

Node.js excels at I/O-bound financial services — API gateways, WebSocket servers, and event-driven microservices. We build battle-tested Node.js back-ends with enterprise reliability.

Discuss your project All technologies

Tell us about your project

What we deliver

Core capabilities

Fastify Express
Fastify & Express API development
Fastify Express
For High-concurrency Node.js back-ends, fastify & Express API development becomes a scoped delivery track rather than a loose task. We define the target architecture, implementation path, and validation checkpoints so the capability can move safely from discovery to production.
Scope, assumptions, and acceptance criteria
Production-ready implementation plan
Quality gates and operational handover
tRPC end-to-end
tRPC end-to-end type safety
tRPC end-to-end
For High-concurrency Node.js back-ends, tRPC end-to-end type safety becomes a scoped delivery track rather than a loose task. We define the target architecture, implementation path, and validation checkpoints so the capability can move safely from discovery to production.
Scope, assumptions, and acceptance criteria
Production-ready implementation plan
Quality gates and operational handover
Prisma Drizzle
Prisma & Drizzle ORM
WebSocket /
WebSocket / SSE real-time servers
WebSocket /
For High-concurrency Node.js back-ends, webSocket / SSE real-time servers becomes a scoped delivery track rather than a loose task. We define the target architecture, implementation path, and validation checkpoints so the capability can move safely from discovery to production.
Scope, assumptions, and acceptance criteria
Production-ready implementation plan
Quality gates and operational handover
Worker threads
Worker threads for CPU-bound tasks
Worker threads
For High-concurrency Node.js back-ends, worker threads for CPU-bound tasks becomes a scoped delivery track rather than a loose task. We define the target architecture, implementation path, and validation checkpoints so the capability can move safely from discovery to production.
Scope, assumptions, and acceptance criteria
Production-ready implementation plan
Quality gates and operational handover
Bull /
Bull / BullMQ job queues

Real-world applications

Use cases

FX Price API

Node.js + Fastify price aggregation API serving thousands of WebSocket subscribers with sub-10ms feed latency.

Notification Service

Event-driven Node.js service dispatching trade confirmations, margin calls, and compliance alerts.

BFF Layer

Backend-For-Frontend Node.js layer orchestrating data from multiple internal microservices for trading dashboards.

Let's talk

Building a Node.js service?

Tell us about your project and we'll scope it together — no commitment required.

Get in touch

Layered technology architecture connected through an illuminated gateway

High-concurrency Node.js back-ends

Core capabilities

Fastify Express

tRPC end-to-end

Prisma Drizzle

WebSocket /

Worker threads

Bull /

Use cases

FX Price API

Notification Service

BFF Layer

Building a Node.js service?