Senior Test Automation Engineer with C#
Salary: 800 - 1100 PLN/day on B2B
Work model: elastic hybrid from Gdynia / Gdańsk / Warszawa (3 days per week from the office)
Why choose this offer?
You can expect a flexible work organization
The international work environment will give you the opportunity to interact with the English language on a daily basis
Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)
The Jit community will bring you a nice time during regular integration meetings
Project
We are looking for a Senior Test Automation Engineer who will take ownership of designing, scaling, and maintaining automated test suites within a C# / .NET 8 environment.
This role requires strong hands-on experience in both UI and API test automation, as well as the ability to design robust, maintainable test architecture and support advanced failure diagnostics.
Responsibilities you'll have
Design, develop, and maintain automated test suites in C# / .NET 8
Implement UI automation using Playwright with Page Object Model
Develop API automation using HttpClient / RestSharp
Perform JSON validation and schema checks
Build scalable and maintainable test architecture
Conduct failure diagnostics and debugging
Maintain and improve CI/CD test pipelines
Expected competences and knowledge
5+ years of experience in test automation within .NET environments
Strong proficiency in C#
Hands-on experience with .NET 8 test automation
Solid experience in UI automation using Playwright
Strong experience in API automation (HttpClient / RestSharp)
Experience with JSON validation and schema testing
Experience with NUnit and test runners
CI/CD automation experience (Bitbucket, Bamboo)
Strong Git knowledge, including code review practices and maintaining test pipelines
Proven experience designing scalable and stable test architecture
Nice to have
Experience working with Pega
Technologies you'll work with
C#
Playwright
Git
JSON
NUnit
Bitbucket
Bamboo
RestSharp
Pega
Client – why choose this particular client from the Jit portfolio?
Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work-life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.
About Jit Team
The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme.
Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.

Jit Team
Jit Team – the human factor of IT. We build software development teams for our clients operating in various branches of business. We believe that the most important factor is the human factor. Our main value are Jit peop...
Senior Test Automation Engineer with C#
Senior Test Automation Engineer with C#