Node JS Developer

Webskitters, an award-winning CMMI Level 3 web design company, combines 15+ years of expertise

with a creative and technical approach to build unique digital presences. We help brands stand out in a crowded digital landscape, providing tailored solutions in web development, design, app development, and digital marketing to ensure business success and growth.

A Node.js Developer job description with specialized

Fintech and Trading experience

focuses heavily on

low-latency, high-throughput backend services

and

API security

to handle real-time market data and transactions.

The role transcends general backend development to include critical performance engineering and financial domain knowledge.

Here is a comprehensive job description template :

Role Summary

We are seeking a highly skilled

Node.js Developer

to design, implement, and maintain the mission-critical backend systems that power our high-performance trading platform. This role requires deep expertise in

low-latency architecture , real-time data processing, and robust API development within a regulated financial services environment.

Key Responsibilities

1. Low-Latency Backend Development (Trading Focus)

Design and develop

high-throughput, low-latency backend services

and APIs using Node.js and TypeScript to support real-time trading operations.

Implement and manage

WebSocket-based communication systems

to deliver real-time market data, price feeds, and execution results to the frontend with minimal delay.

Optimize server-side performance by managing

asynchronous operations , memory, and CPU usage, ensuring systems are stable under heavy trading volumes.

Utilize Node.js clustering capabilities to distribute load across multiple CPU cores effectively.

2. API, Data & Infrastructure

Design, implement, and maintain

RESTful and event-driven APIs

for core functionalities like order management, risk management, and account services.

Implement efficient

database systems

(e.g., PostgreSQL, MongoDB, Redis) and optimize complex queries to support real-time data retrieval for dashboards and reporting.

Integrate third-party financial APIs (e.g., payment gateways, market data feeds) and external microservices into the application.

Work with cloud services (AWS, Google Cloud) and

DevOps teams

to manage containerized deployments (Docker / Kubernetes) and CI / CD pipelines.

Required Skills and Qualifications

Experience :

3+ years of proven experience in backend development, with significant hands-on expertise in

Node.js / TypeScript .

Performance Engineering :

Direct experience in performance-critical applications, optimizing latency, and working with

WebSocket

or similar real-time communication protocols.

Fintech / Trading Domain :

Familiarity with concepts like

order management, risk management, real-time financial markets,

and derivatives is strongly preferred.

Technologies :

Strong command of JavaScript (ES6+), TypeScript, and Node.js frameworks (e.g.,

Express.js, NestJS ).

Database :

Proficiency with both relational (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis), including schema design and optimization.

DevOps : Familiarity with

Docker

and cloud platforms (AWS, Azure).

Preferred Qualifications

Experience with

microservices architecture

and distributed systems.

Familiarity with event streaming technologies like

Apache Kafka

or RabbitMQ.

Knowledge of

algorithmic trading

or high-frequency trading (HFT) principles.

Experience in a TDD (Test-Driven Development) environment using frameworks like Mocha or Jest.