C# Test Automation Engineer (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

Project concerns a long-term banking engagement. Required work with .NET for test automation and full-stack testing: GUI, mobile, API/web services, databases. Main responsibilities include designing and implementing performance test scripts, executing non-functional tests and analysing results, maintaining and extending automation frameworks, supporting CI and the Scrum team to ensure quality. Required minimum 4 years in test automation, knowledge of TDD/BDD/POM, Git, ISTQB-level knowledge and fluent Polish and English.

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C# Test Automation Engineer (f/m/x)

Company: Sii Sp. z o.o.

from: 16 October 2026
to: 15 November 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:mid • senior
working mode:hybrid • full office
Gdańsk, Oliwa
Gdańsk, Oliwaaleja Grunwaldzka 472eView on map

Requirements

Expected technologies

C#
.NET
Microsoft Power Apps

Optional technologies

Python
Java
Robot Framework

Our requirements

  • Minimum 4 years of experience in test automation, specifically with .NET stacks
  • Full-stack test automation experience (front-end - GUI, mobile), middleware (API/web services), and back-end (databases)
  • Experience executing test automation across different environments and different test levels
  • Methodology and industry best-practice test automation knowledge: TDD, BDD, Page Object Model, etc.
  • ISTQB foundation-level knowledge (certified or planning for certification within 3 months of joining)
  • Git version control experience
  • Fluent in written and spoken Polish and English - work in an international environment

Your 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
Company

About the 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 the high performance and stability of business-critical systems.

This is how we work

C# Test Automation Engineer (f/m/x)
I apply to:
Sii Sp. z o.o.
Gdańsk, Oliwa
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