Back End Node.JS Developer (Remote)

Responsibilities

You’ll work on the infrastructure behind algorithmic trading tools, data pipelines, backtesting engines, and the custom scripting environment that drives everything our users see on the screen
Design, optimize, and maintain Node.js microservices handling tens of thousands of messages per second
Connect new data sources and maintain existing ingestion pipelines
Improve observability across the data stack — logs, metrics, traces, and alerts
Write the business logic that powers charting, scanning, backtesting, and custom scripting
Implement automated tests and uphold our standard of clean, maintainable code
Manage infrastructure with Terraform — AWS RDS, Lambda, SQS, and related services
Work with PostgreSQL and MongoDB directly (no ORMs), scaling both high-read and high-write systems
Tune performance and memory efficiency in complex, event-driven systems
Collaborate with traders, data scientists, and product teams to translate trading ideas into working software
Continuously learn, experiment, and refine how market data and automation come together
You’ll be building the backbone of a platform used by thousands of serious traders and quants

Deep expertise in Node.js and experience debugging memory leaks, profiling performance, and fixing event-loop jams
Experience writing and maintaining Terraform configurations (AWS RDS + Lambda + SQS)
Solid command of PostgreSQL and MongoDB, handling large-scale datasets efficiently
Understanding of both object-oriented and functional programming concepts — and when to use each
Familiarity with Kubernetes — at least configuring clusters, bonus points for creating and managing them
Comfort working in a microservice architecture (30+ services, all ECMAScript)
A disciplined approach to testing, CI/CD, container orchestration, monitoring, and alerting
A genuine curiosity about markets and trading; hands-on trading or strategy design experience is a major plus

💼 The systems you touch handle real-time data firehoses, multi-terabyte backtests, and live automation
🌐 It’s a rare chance to combine engineering precision with market intelligence — and to learn from both worlds in equal measure