Senior Test Automation Engineer –.NET and JavaScript Expertise

About the Position

Senior Test Automation Engineer – .NET and JavaScript Expertise

Senior • Hybrid

27,300 - 32,760 PLN

Krakow, Poland

Empower quality at scale - lead the evolution of automated testing in a transformative cloud-native environment!

Krakow-based opportunity with hybrid work model, allowing up to 2 remote days per week.

As a Senior Test Automation Engineer, you will be working for our client, a major player in banking technology modernization. You will contribute to the Hilda 2.0 program - a critical initiative migrating legacy applications to a modular, Azure-based architecture supporting Israeli regulatory reporting. Your role is instrumental in driving automation excellence, ensuring high quality and reliability as the platform evolves.

Responsibilities

• Own and refine the automated testing framework across the portfolio - including design standards, tooling, and best practices.
• Develop and implement comprehensive test strategies covering unit, API, integration, and end-to-end testing layers.
• Build and maintain automation scripts with Playwright for React frontends, and backend tests using xUnit (.NET) and Vitest/Jest.
• Seamlessly integrate automated tests into Azure DevOps CI/CD pipelines, optimizing for speed, reliability, and thoroughness.
• Promote good testing practices - testability, coverage, assertions - and manage test data for robust scenarios.
• Validate data flows across Azure SQL, DWH, and other layers through data-driven testing, ensuring end-to-end integrity.
• Lead troubleshooting efforts, manage flaky tests, and improve overall test suite reliability; share quality metrics with stakeholders.
• Collaborate with developers on acceptance criteria, review test code, and provide mentorship on testability.
• Support UAT activities - environment preparation, execution, and documentation of results.

Requirements

• 5+ years of experience in test automation, with a strong track record in framework development.
• Proficiency in C# /.NET, with the ability to read, write, and debug production-quality code.
• Strong JavaScript / TypeScript skills for automation purposes.
• Hands-on expertise with Playwright (or Selenium ready to transition).
• Practical knowledge of xUnit / NUnit, Vitest / Jest for unit and integration testing.
• Experience integrating automation into Azure DevOps or GitHub Actions CI/CD pipelines.
• Solid SQL skills, particularly with MSSQL or Azure SQL, including test data setup and validation.
• Familiarity with REST API testing, including contract validation and authentication flows.
• Highly autonomous, proactive, and able to set automation standards and roadmaps.
• Good Git practices, code review discipline, and maintainable test code development.
• Excellent communication skills in English (B2+ level).

Nice to Have

• Azure services familiarity (App Service, Key Vault, Functions).
• Experience with Power BI, DAX, or SSRS report testing.
• Knowledge of contract testing (Pact), OpenAPI validation, and infrastructure as code (Terraform).
• Monitoring and observability tools like Application Insights, OpenTelemetry, Serilog.
• ISTQB or Azure/test automation certifications.

Language Required for the role

• Communicative English proficiency (B2+ level).

Eligibility to work in Europe

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

We Offer

• Competitive salary range of 27,300 - 32,760 PLN per month.
• Hybrid work model with flexibility.
• Opportunity to work on a critical initiative in the banking technology sector.
• Collaborative and innovative work environment.

About the Company

ITDS Business Consultants is a company that operates within the IT consulting industry, focusing on delivering innovative and professional IT projects for international companies, particularly in the financial sector across Europe. The company is committed to providing an environment that fosters professional growth, ambition, and drive. ITDS is involved in strategic projects that are crucial to the market, offering opportunities for skill enhancement and expertise development. The company values stable and long-term cooperation, providing a supportive environment for career development. ITDS also emphasizes a collaborative and international work environment, with access to various benefits such as medical packages, sports programs, and flexible working conditions. The company is dedicated to aligning its solutions with business needs and maintaining high standards in its development practices.

Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.