Senior Test Automation Engineer — Hybrid (Playwright/.NET)

ALTEN Polska; Kraków; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Hybrid work from Kraków

Full-time contract (UoP/B2B)

Medicover medical care

Medicover Benefits / Medicover Sport

Career development path

Relocation opportunities within ALTEN

Employee referral program

Certification and training

Job summary

ALTEN Polska is seeking an experienced Automation Engineer in Kraków to lead end-to-end test automation across the application portfolio. You will design, implement, and maintain Playwright-based automation for React apps, backend tests in .NET, and frontend tests, while integrating everything into Azure DevOps CI/CD pipelines.

You will own the automation roadmap, collaborate with developers on acceptance criteria, and drive quality improvements.

Qualifications

• 5+ years of commercial experience in test automation with hands-on framework development.
• Strong C#/.NET skills—ability to write, debug, and review production-grade code.
• Expertise in Playwright (or Selenium with transition to Playwright).
• Experience with xUnit/NUnit and Vitest/Jest in unit/integration tests.
• CI/CD integration with Azure DevOps or GitHub Actions.
• SQL (MSSQL/Azure SQL) for test data setup and validation.
• REST API testing—contract validation, status codes, and auth (JWT/OAuth/Azure AD).
• Highly autonomous—own automation roadmap end-to-end.

Responsibilities

• Own and evolve automated testing processes for the application portfolio—frameworks, standards, tools, and best practices.
• Design and implement test strategies across unit, API, integration, and E2E layers.
• Develop and maintain E2E automation in Playwright for React apps, backend tests in xUnit/.NET, frontend tests in Vitest/Jest.
• Integrate automated tests into CI/CD pipelines (Azure DevOps)—PR checks, nightly runs, pre-release gates, and post-deploy validation with parallel/sharded execution.
• Promote testing best practices: testability, coverage, assertions, data management, and clean test code.
• Validate data flows across Azure SQL, ODS, and DWH; design data-driven scenarios and test data management.
• Drive root-cause analysis, flaky-test management, and publish quality metrics for stakeholders.
• Collaborate with developers on acceptance criteria and test coverage; review test code in PRs.
• Support UAT coordination—prepare environments and verify business scenarios.

Skills

C# / .NET

Playwright

xUnit / NUnit

Vitest / Jest

Azure DevOps

SQL (MSSQL / Azure SQL)

REST API testing

Fluent English (B2+)

Automation roadmap ownership

Tools

Playwright

Azure DevOps

Job description

ALTEN Polska is seeking an experienced Automation Engineer in Kraków to lead end-to-end test automation across the application portfolio. You will design, implement, and maintain Playwright-based automation for React apps, backend tests in .NET, and frontend tests, while integrating everything into Azure DevOps CI/CD pipelines.

You will own the automation roadmap, collaborate with developers on acceptance criteria, and drive quality improvements.