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MasterBorn Software

Senior Backend Developer, Node.js

MasterBorn Software

Senior Backend Developer crafting diverse backend solutions for US clients using Node.js, React, and TypeScript.

Posted 6/5/2026full-timeRemote • 🇵🇱 PolandSenior💰 PLN 18,000 - PLN 24,000 per monthWebsite

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Hard Skills
JavaScriptTypeScriptNode.jsExpress.jsNestJSREST APIsGraphQLSQLNoSQLAI-powered applications
Soft Skills
communicationleadershipproblem-solvingdocumentationrisk identificationclient interactionpeer code review
Tools & Technologies
AWSDockerGitHub Actions
Industry Keywords
OOPdesign patternsarchitecture patternsscalable applicationshigh-performance applications

Tech Stack

Tools & technologies
AWSDockerGraphQLJavaScriptNode.jsNoSQLSQLTypeScript

About the role

Key responsibilities & impact
  • Writing readable, scalable and easy-to-maintain JS/TS code with OOP flavor
  • Writing clear documentation for delivered code and technical decisions
  • Being responsible for designing and modifying DB structures
  • Clearly communicating feasible technical solutions
  • Supporting architecture decisions and the long-term technical direction of the project
  • Proactively identifying technical and product risks
  • Maintaining continuous contact with the client
  • Providing the client with possible options and solutions
  • Being a natural leader in Backend
  • Providing thoughtful peer code review

Requirements

What you’ll need
  • 4+ years of commercial experience in Node.js
  • knowledge of backend frameworks (e.g Express.js, NestJS)
  • experience in TypeScript
  • knowledge about design and architecture patterns
  • basic usage AWS services
  • basic dev-ops skills (Docker, GitHub Actions)
  • deep knowledge of at least one Node.js backend framework (e.g. Express.js, NestJS, Fastify, etc.)
  • Proficient in designing, developing and maintaining high-performance, scalable and secure REST APIs
  • familiar with GraphQL
  • usage experience with Docker
  • experience with SQL/NoSQL databases
  • experienced in designing and building AI-powered applications or features using existing AI/LLM tools
  • able to connect technical decisions with product and business goals
  • English level B2/C1
  • Polish level C1

Benefits

Comp & perks
  • B2B, paid days off
  • 100% remote (or hybrid/onsite - as you prefer)
  • flexible hours
  • long-term contract
  • Scrum Teams
  • Budgets for self-development
  • integrations
  • healthcare & sport activities
  • Mentoring Program
  • Individual Career Path
  • Paid Time Off
  • Paid Health Break & more