Backend Node.js Engineer | TypeScript, Remote

MasterBorn; Polska; Hybrid; PLN 112,000 - 179,000; Full time

Benefits offered by this job

Annual training budget 3,000 PLN

Multisport

Luxmed

Cafeteria Platform

Tech talks

Learning sessions

Job summary

MasterBorn is seeking a skilled Backend Developer to join teams delivering with US clients. You will work with React, Node.js and TypeScript, building on a modern stack and collaborating with diverse industries. You’ll enjoy Poland time zone, flexible hours, and long-term projects in a fully remote, hybrid, or onsite setup.

Requirements include 2+ years in Node.js, strong TS, and experience with SQL/NoSQL. You’ll apply AI features, review code, and help shape API contracts while mentoring

Qualifications

• 2+ years of commercial experience with Node.js.
• Experience with Express.js, NestJS or Fastify in at least 1-2 projects.
• Strong TypeScript proficiency with static typing and TS compilers.
• Experience with SQL databases and ORM or query builders.
• Familiarity with NoSQL/in-memory data stores.
• Understanding of AI/LLMs and AI-powered backend features.
• Ability to apply AI in development while ensuring production quality.

Responsibilities

• Write readable, testable JS/TS code with OOP flavor.
• Own backend features from requirements to deployment.
• Write docs for delivered code and decisions.
• Code review teammates and share knowledge.
• Design/modify basic DB structures and API contracts.
• Propose pragmatic improvements and proactive ideas.
• Share insights to diagnose issues and communicate risks.
• Participate in project discussions and tech decisions.
• Listen to client needs and propose practical solutions.
• Support less experienced teammates with code review and pair programming; use AI tools responsibly.

Skills

Node.js

TypeScript

Express.js

NestJS

Fastify

APIs

AI integration

SQL databases

NoSQL databases

GIT/Jira/Slack

Tools

GitHub

Jira

Slack

GSuite

Coda

FigJam

Claude Code

Job description

MasterBorn is seeking a skilled Backend Developer to join teams delivering with US clients. You will work with React, Node.js and TypeScript, building on a modern stack and collaborating with diverse industries. You’ll enjoy Poland time zone, flexible hours, and long-term projects in a fully remote, hybrid, or onsite setup.

Requirements include 2+ years in Node.js, strong TS, and experience with SQL/NoSQL. You’ll apply AI features, review code, and help shape API contracts while mentoring