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MasterBorn
Development 4d ago

Senior QA Engineer (React, React Native, Node.js, TypeScript)

MasterBorn
šŸŒGlobal
Full-time
PLN 6,000 - 8,000 + VAT (B2B); PLN 5,500 - 6,700 brutto (UZL)
Mid-Level

Job Description

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QA Engineer1h 50mFree Trial ✨
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React57mFree Trial ✨
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Node.js40mFree Trial ✨
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Agile

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We are not looking for another ordinary bug finder, we are looking for a new valuable member of our team who is way more than just a tester.

Our tech stack is built around React, React Native, Node.js, and TypeScript. We are focusing mostly on manual testing with the priority set on API, acceptance, and end-to-end testing.

We are working with well-established companies and sometimes startups in their early stages (MVPs), which makes the job full of diversity and exciting challenges while crafting cutting-edge solutions. Our clients and referrals are from the high-end American IT market.

You must be quality-oriented and willing to act! At this point, you don’t have to be the absolute best, but gathering knowledge should be your day-to-day focus.

Your future tasks:

  • Participating in the design and implementation of modern business applications for external clients
  • Manual testing, building test scenarios, test cases, user scenarios, and bug reporting
  • Working closely with Developers, Scrum Master, Proxy Product Owner, and Product Designers to assure high quality
  • Focusing on quality-oriented rather than defect-oriented testing
  • Executing test cases with high precision and detail, diligently checking each step and documenting differences

About you - Tech skills & Experience:

  • 6-12 months of experience as QA working with teams that develop software in an agile environment
  • Experience in exploratory tests
  • SQL basics, familiarity with relational databases
  • Know the basics of Jira or other agile project management tools
  • Basic knowledge about API
  • Basic knowledge about dev-tools in browsers
  • Curiosity about AI and interest in AI-driven solutions that enhance work efficiency
  • Practical knowledge of using AI in projects

About you - Soft Skills:

  • Good command of English (min. B2), excellent command of Polish (min. C1) is required
  • Knowledge hungry - with eagerness to learn and taking on challenges
  • Detail-oriented and quality-centered approach to software development
  • Familiarity with Scrum and Agile methodologies
  • Problem-solving way of thinking
  • Solid communication skills and not being afraid to challenge the status quo
  • Open-minded to new ideas and perspectives
  • Being aware of your strengths and areas for improvements
  • Actively seeking solutions and trying to figure things out on your own, but not being afraid to ask for help when needed

Nice to have:

  • ISEB/ISTQB certificate
  • Ability to spot UI/UX imperfections or flaws
  • Experience in cooperation with the client

Recruitment Process:

  • CV Review
  • Phone call with our Recruiter (15 min)
  • Soft-skills interview with our Recruiter (45 min)
  • Technical interview with our Specialists (1.15 hours)
  • Decision and feedback

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MasterBorn (operating at masterborn.com) is a custom software development firm engineered for businesses seeking tailored, high-performance digital solutions. While many companies rely on generic off-the-shelf tools, MasterBorn specializes in building AI-powered products from the ground up, ensuring alignment with unique business needs. Under the hood, their approach combines expert product ownership with deep technical execution, leveraging a multidisciplinary team of founders, engineers, and designers to deliver scalable software efficiently. This allows enterprises to accelerate innovation, reduce time-to-market, and achieve operational excellence without compromising on quality or flexibility. Recognized as an Inc. 5000 company, MasterBorn has carved a niche by serving over 80 global clients with bootstrapped growth, achieving an $8.2M annual recurring revenue (ARR) without external funding.

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