Senior Test Automation Engineer C#/.Net Warsaw, Gdańsk, Gdynia

DCG (Poland); Warszawa; On-site; PLN 140,000 - 210,000; Full time

Benefits offered by this job

Private medical care

Co-financing for the sports card

Constant consultant support

Job summary

DCG Poland seeks a Senior Test Automation Engineer to design, build and maintain automated test suites in a .NET 8 environment. You will implement UI tests with Playwright, build API tests with HttpClient/RestSharp, and contribute to a robust, scalable test framework. Strong NUnit experience and CI/CD collaboration are required.

The role requires English proficiency and a proactive approach to reducing test flakiness and improving reliability throughout the development lifecycle.

Qualifications

• 5+ years of experience in test automation within .NET-based environments.
• Experience with Pega platform or applications built on Pega.
• Strong knowledge of C# (modern language features) and writing automated tests in .NET 8.
• Experience with test frameworks such as NUnit and related test runners.
• Experience with CI/CD pipelines, particularly Bitbucket and Bamboo.
• Solid understanding of Git workflows, code review practices, and maintaining automated test pipelines.
• Very good command of English (oral and written).

Responsibilities

• Design, develop and maintain automated test suites in a C# / .NET 8 environment.
• Implement UI test automation using Playwright, applying the Page Object Model (POM) design pattern.
• Develop API automation tests using HttpClient or RestSharp, including JSON validation and schema checks.
• Build and maintain robust test architecture, including reusable helpers, stable selectors, and retry/backoff strategies to reduce test flakiness.
• Investigate test failures and provide effective debugging and failure diagnostics.
• Contribute to improving test reliability and efficiency across the development lifecycle.

Skills

Test automation

C#/.NET

Playwright

CI/CD

NUnit

Git workflows

Tools

Playwright

HttpClient

RestSharp

NUnit

Bitbucket

Bamboo

Git

Job description

Position: Senior Test Automation Engineer

As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for:

Senior Test Automation Engineer

Responsibilities:

• Design, develop and maintain automated test suites in a C# / .NET 8 environment
• Implement UI test automation using Playwright, applying the Page Object Model (POM) design pattern
• Develop API automation tests using tools such as HttpClient or RestSharp, including JSON validation and schema checks
• Build and maintain robust test architecture, including reusable helpers, stable selectors, and retry/backoff strategies to reduce test flakiness
• Investigate test failures and provide effective debugging and failure diagnostics
• Contribute to improving test reliability and efficiency across the development lifecycle

Requirements:

• 5+ years of experience in test automation within .NET-based environments
• Experience working with Pega platform or applications built on Pega
• Strong knowledge of C# (modern language features) and writing automated tests in .NET 8
• Experience with test frameworks such as NUnit and related test runners
• Experience with CI/CD pipelines, particularly Bitbucket and Bamboo
• Solid understanding of Git workflows, code review practices, and maintaining automated test pipelines
• Very good command of English (oral and written)

Offer:

• Private medical care
• Co-financing for the sports card
• Constant support of dedicated consultant

Personal Consulting Agency (License No. 4642)