Senior Automation Test Engineer (C#/.NET)

Quick Facts

• Role: Senior Automation Test Engineer (C#/.NET)

• Work model: Hybrid (2/3 days per week in office) from Gdynia/Gdańsk/Warsaw/Łódź

• Salary: 1000–1200 PLN/day on B2B

Description

Join a role focused on owning and further developing automated test suites for a C#/.NET 8 application. You’ll combine automation work with selected manual testing, with emphasis on database validation, failure diagnostics, and maintaining reliable CI/CD testing pipelines. You will collaborate closely with developers, analysts, and QA to ensure business-critical quality.

Responsibilities

• Design, develop, and maintain automated test suites for a C#/.NET 8 application

• Execute and support selected manual testing activities when needed

• Build and maintain automated testing pipelines within CI/CD environments

• Perform database testing and validation using SQL

• Analyze test failures and conduct root cause investigations

• Participate in code reviews and promote testing best practices

• Collaborate with development teams to improve test coverage and automation standards

• Maintain test frameworks and ensure long-term scalability of automation solutions

Requirements

• Minimum 5 years of experience in test automation

• Minimum 2 years of experience within .NET environments

• Strong knowledge of SQL and database testing

• Experience with CI/CD automation, preferably using Bitbucket and Bamboo

• Practical experience with Git, code reviews, and test pipeline maintenance

• Experience with NUnit and test runners

• Ability to diagnose failures, troubleshoot issues, and debug applications

• Willingness to support manual testing activities when required

• Strong communication and collaboration skills

Benefits

• Flexible work organization

• International environment with daily English usage

• Scandinavian culture with work-life balance and financed training time

• Regular integrations through the Jit community