Senior Test Engineer: .NET & JS, CI/CD, Cloud Migration

emagine; Kraków; Hybrid; PLN 193,000 - 214,000; Full time

Job summary

emagine in Kraków is seeking an experienced Test Engineer with strong .NET and JavaScript skills to drive automation within a modernization program. The role focuses on building testing frameworks, integrating tests into CI/CD, and ensuring quality during migration to cloud-native architectures.

The candidate will lead automated testing strategies across layers, collaborate with developers and QA teams, and help shape data validation and UAT coordination in a hybrid work setup.

Qualifications

• 5+ years of commercial experience in test automation.
• Strong coding skills in C# / .NET.
• Expertise in JavaScript / TypeScript for test automation.
• Proficient with Playwright or Selenium.
• Experience with xUnit / NUnit and Vitest / Jest.
• Familiarity with Azure DevOps CI/CD integration.
• Practical SQL experience (MSSQL / Azure SQL).
• Proficient in REST API testing.
• Self-driven and able to set standards for automation.
• Good Git practices and English communication skills (B2+).

Responsibilities

• Own and evolve the automated testing processes across the portfolio.
• Design and implement test strategies across various testing layers.
• Build and maintain E2E automation and backend integration tests.
• Integrate automated tests into CI/CD processes.
• Champion best practices in testing and quality assurance.
• Validate data flows and manage test data.
• Drive root-cause analysis and manage flaky tests.
• Collaborate with developers on acceptance criteria and code review.
• Support UAT coordination and document test results.

Skills

Test automation

English communication

JavaScript / TypeScript

Git practices

Tools

Playwright

Selenium

Azure DevOps

MSSQL / Azure SQL

REST API testing

Job description

emagine in Kraków is seeking an experienced Test Engineer with strong .NET and JavaScript skills to drive automation within a modernization program. The role focuses on building testing frameworks, integrating tests into CI/CD, and ensuring quality during migration to cloud-native architectures.

The candidate will lead automated testing strategies across layers, collaborate with developers and QA teams, and help shape data validation and UAT coordination in a hybrid work setup.