Node.js Support Engineer

Quick Facts

• Role: Node.js Support Engineer (Middle)
• Work time: Client issue troubleshooting during 14:00–22:00 CET/CEST
• Contract: B2B, full-time, long-term; paid days off
• Work mode: 100% remote (or hybrid/onsite as preferred)
• Scrum: Scrum teams
• Rate: PLN 10,000–16,000 + VAT (B2B)

Description

Provide top-quality support by fixing and debugging scalable web applications built with Node.js, using TypeScript and SQL/NoSQL technologies, mainly on AWS. You will communicate with the client to understand issue reports, review error tracking and infrastructure, and deliver readable, maintainable code. You’ll also participate in product improvements, basic database structure changes, and documentation.

Responsibilities

• Gather and troubleshoot client issue reports during afternoon/evening hours (14:00–22:00 CET/CEST)
• Review error tracking tools, infrastructure, and 3rd-party connections; debug as needed
• Prioritize bugs and ongoing client requests; deliver effective fixes
• Write clean, maintainable JavaScript/Node.js code
• Contribute to product improvements and fix issues with direct involvement in basic DB structure design/modification
• Document delivered code and solutions
• Work with the team to translate user stories/tasks into estimates and solutions
• Stay current with trends and share knowledge; improve and reuse the knowledge base

Benefits

• PLN 3,000 annual training budget
• Multisport and Luxmed
• Cafeteria Platform
• Tech talks and learning sessions
• Paid days off

Requirements

• 2+ years of commercial experience with Node.js
• Experience debugging Node.js applications on AWS (Cognito, CloudWatch, SQS, SES, Lambda)
• Strong understanding of JavaScript (ES2018), OOP, clean code, and best practices
• Experience with at least one Node.js backend framework (Express.js preferred)
• Relational SQL database experience using ORM or query builder (Sequelize, Knex)
• English level C1 for client communication and documentation
• Polish level C1 for team communication
• Strong problem-solving skills and detail orientation