Senior QA Engineer


Dear Candidate,

If you are looking to advance your career in a dynamic, fast-paced and growing company, Rumble Fish Blockchain Development is the place for you. A team of talented engineers is looking for a Senior QA Engineer to join our growing team.

If you think you know plenty of stuff, join us and see for yourself that there is plenty more to be learnt.

This an opportunity to work within a team of technology pioneers that share a common interest in building complex software and distributed systems.


8,000 – 15,000 net on B2B

We are working on life-changing projects:

  • energy
  • fintech
  • IoT

Main responsibilities:

  • Creating and implementing tests concepts and strategy for web, API, mobile
  • Creating test scenarios, conducting and execution of manual tests
  • Error root cause analysis
  • Working with project teams through the design and test stages to ensure strict adherence to business requirements
  • Research and formulating projections, identifying trends, and proposing corrective recommendations
  • Working with nodejs, cypress and jest.

It's up to you to decide whether you want to specialize in a single field or you want to grow and be able to develop project from end-to-end.


  • 4+ years professional experience in Quality Assurance, including manual testing, creating test plans, writing test cases and test scenarios
  • Understanding of technological aspects of product development
  • Experience in working in SCRUM team or similar agile setup
  • Experience with automation testing tools
  • Knowledge of UI tools
  • Knowledge of UI tools
  • Strong English both in speaking and writing
  • Initiative to introduce improvements and new ideas

Here’s What We’ll Bring to the Table:

  • Friendly environment, supportive people ready to share their knowledge
  • Non-Corporate culture where your voice is actually heard
  • In-house courses and in-house hackathons / hack-nights
  • Training budgets
  • Awesome projects to work on
  • Fascinating team building events
  • Private healthcare
  • Multisport Plus
  • Coffee / fruits / snacks
  • Lovely office in the heart of Cracow

Join us and have just fun while building the future!

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