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C# Test Automation Engineer (f/m/x)
  • Warsaw
C# Test Automation Engineer (f/m/x)
Warszawa, Warsaw, Masovian Voivodeship, Polska
Sii Sp. z o.o.
7. 2. 2026
Informacje o stanowisku

technologies-expected :


  • C#
  • Selenium
  • API
  • JSON

technologies-optional :


  • SpecFlow

about-project :


  • We are looking for a Test Automation Engineer to join a long-term banking project for a leading external client. You will become part of an agile team responsible for ensuring high performance and stability of business-critical systems.

responsibilities :


  • Designing and implementing automated performance test scripts
  • Executing non-functional tests and analyzing test results
  • Identifying, reporting, verifying, and debugging defects
  • Reviewing requirements and technical designs from a testing perspective
  • Maintaining, improving, and extending test automation frameworks
  • Managing and preparing test data with an understanding of data dependencies
  • Recommending actions based on test outcomes and quality metrics
  • Collaborating with the agile Scrum team to ensure delivery quality
  • Supporting continuous integration processes for automated tests
  • Participating in risk mitigation, impediment resolution, and test-related communication

requirements-expected :


  • At least 8 years of extensive experience in test automation within IT projects
  • Advanced knowledge of test automation standards, tools, and best practices
  • Proficiency in C# programming
  • Previous work with test automation frameworks (Selenium, SpecFlow)
  • Knowledge of API testing and REST services
  • Understanding of data formats and standards (JSON, XML)
  • Basic knowledge of HTML
  • Knowledge of SQL and database querying
  • Ability to work independently on highly complex testing problems
  • Experience in mentoring, coaching, and leading other team members
  • Proactive approach to issue identification and solution initiation
  • Fluency in both: Polish and English

offered :


  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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