Middle Support Engineer (Node.js)

Masterborn 2; Wrocław; Remote; PLN 1,339,000 - 2,143,000; Full time

Benefits offered by this job

Remote+ Hybrid options

Learning budget

Health insurance

Sport benefit

Job summary

Masterborn 2 is looking for a Support Engineer to enhance our world-class service for a US-based client Payments.ai. You will fix and debug modern web apps using Node.js, TypeScript, SQL/NoSQL, and AWS, with 14-22 CET/CEST alignment.

The role offers 100% remote (or hybrid/onsite) working options, B2B contract, and long-term collaboration in an expert team focused on quality and rapid delivery.

Qualifications

• 2+ years of commercial experience in Node.js with SQL/NoSQL databases.
• Strong knowledge of JS frameworks, especially Express.js, and TypeScript.
• Experience debugging AWS-based applications (CloudWatch, Cognito, SQS, Lambda).
• Knowledge of design patterns, SOLID/KISS principles and RESTful APIs.
• Familiarity with Docker and GitHub Actions for CI/CD pipelines.
• Proficient in writing clean, testable code and basic DB design.
• Excellent communication in English (C1) and Polish (C1).
• Experience with ORM or query builders like Sequelize/Knex.
• Understanding MVP mindset and quality-focused delivery.
• Past support-level or open-source experience and serverless exposure.
• Ability to work in Agile/Scrum and debug React issues.

Responsibilities

• Communicate with the client to report issues and troubleshoot during 14-22 CET/CEST.
• Review error tracking, infrastructure, and 3rd-party connections; debug as needed.
• Prioritize bugs and ongoing client requests; provide timely resolutions.
• Write readable and maintainable JS code with multiple flavors.
• Involve in product design and DB structure changes where needed.
• Document delivered code and solutions for future reference.
• Translate business stories into technical tasks and estimates.
• Keep up with trends and share learnings with the team.
• Improve and reuse the company knowledge base.

Skills

Node.js

Express.js

TypeScript

AWS

Docker

GitHub Actions

SQL/NoSQL

OOP / SOLID

English (C1)

Polish (C1)

Debugging

Serverless

React basics

Tools

Jira

Azure DevOps

GitHub

FigJam

MS SQL

PostgreSQL

Snowflake

Python

Powershell

AWS S3

Job description

We are currently improving our world-class service with a Support Engineer role. Your challenge will be to provide the highest quality level of service and focus on fixing and debugging modern, scalable web application using Node.js frameworks with TypeScript and (No)SQL technologies, mainly on AWS Cloud. You will work for one of our US-based clients: Payments.ai within 14-22 CEST/CET time zone. We're a team of top performers. 100% of our clients and referrals are from the high-end American IT market.

Salary: PLN 10.000 - 16.000 + VAT (B2B)

Requirements

• available within 14-22 CET/CEST time, 2+ years of commercial experience in Node.js, essential experience in SQL and NoSQL DBs, vast knowledge of JS framework (Express.js preferred), SOLID and KISS, knowledge about design and architecture patterns, know-how and why Docker and GitHub Actions works, primary usage of AWS S3 services, detail oriented and problem solver, English C1,
• 2+ years of commercial experience in Node.js
• Experience with AWS allowing debugging of the application (i.e. Cognito, CloudWatch, SQS, SES, Lambda),
• Good understanding of JS (at least ES 2018), OOP, clean code and best practices,
• Good experience with at least one Node.js backend framework (i.e., Express.js - preferred, Koa.js, others) - knows most of its basic APIs/features, was working on at least 1/2 projects involving such technologies.
• Have worked with relational SQL databases (integration-wise and as a basic design skill) with ORM or query builder tools (i.e., Sequalize, Knex)
• Potentially worked with NoSQL databases and/or in-memory databases and utilized them as a data store (i.e., Mongo, Redis)
• English level C1 - direct communication with clients/documentation/tasks/other reading/speaking/writing
• Polish level C1 to communicate efficiently within the team
• Understand the significance of MVP and prioritize the pursuit of excellence and high-quality outcomes, even amid tight project timelines.
• Strong problem-solving abilities and detail orientation to diagnose issues, suggest solutions and make decisions based on project requirements
• Past support-level experience, open-source contributions, Serverless experience, experience in TypeScript and various BE frameworks
• Familiarity with process automation tools such as n8n, Zapier, or Make
• Basic experience with Docker - knows how to prepare a basic environment and connect things up to work locally
• Worked in Agile/Scrum daily consisting of people with similar skills and monitoring code quality daily
• Ability to debug and fix basic React issues
• Experience as any other support role

Offer

• B2B, paid days off, 100% remote (or hybrid/onsite - as you prefer), full-time position, long-term contract, Scrum Teams

Perks and Benefits

• learning budget, health insurance and sport benefit, regular feedback, support, and real learning opportunities, access to internal Design Talks and Tech Talks, and more

Tools & Tech Stack

• MS Office Suite, Azure Devops, Jira, FigJam, Windows/iOS, MS SQL, PostgreSQL (Greenplum), Snowflake, Python, Powershell, Slack, GSuite, GitHub, Jira, Coda, FigJam, Apple MacBook Pro

Responsibilities

• Communicate with the client to gather the issue report and troubleshoot during the afternoon/evening hours (14-22 CET/CEST)
• Reviewing error tracking tools, infrastructure, and 3rd party connections and debugging them as needed
• Prioritizing requests/bugs and solving ongoing client requests
• Pro-active communication and problem-solving skills to provide top-quality service
• Writing readable and easy-to-maintain JS code with different flavors
• Have technical involvement in the product - finding ways to improve it and fixing it
• Direct involvement with the design and modification of basic DB structures
• Writing documentation for delivered code and solutions
• Communicate with the team to efficiently translate business complexities (user stories/tasks) into solutions (results/estimations)
• Staying on top of trends/news, sharing them, teaching others, and aiming for the best quality solutions
• Improving and reusing the company’s knowledge base

Hiring Process

• CV Review
• Phone call with our Recruiter (15min)
• Soft-skills interview with our Recruiter (1h)
• Technical interview with our Specialist (1,5h)
• Decision and feedback

Meaningful projects, top-notch experts, and value-driven workplace

Sound good?