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Senior Software Engineer - Test Automation/Java

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Mastercard

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Location:
Poland , Warsaw

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

We are looking for a Senior Software Engineer – Test Automation (Java) with 5+ years of experience to join the Developer Experience team, responsible for the Mastercard Developers portal and related tools used by developers globally. This is a hands‑on individual contributor role focused on building and maintaining high‑quality automated tests and frameworks. You will work closely with software engineers to embed test automation directly into the development workflow and ensure reliable, production‑ready releases. This is an individual contributor role, with opportunities to grow in scope and responsibility over time.

Job Responsibility:

  • Own testing for assigned features as part of a feature team
  • Perform manual and exploratory testing, identify defects, and work directly with developers on fixes
  • Design and implement automated tests in Java (API, UI, integration)
  • Ensure new features are covered by reliable automation before release
  • Maintain and improve test stability and CI/CD integration

Requirements:

  • Strong experience in test automation or software engineering in test
  • Very good Java skills used in automation or tooling
  • Experience testing APIs, UI, and distributed systems
  • Ability to combine manual testing and automation effectively
  • Experience collaborating closely with developers in feature teams
  • Familiarity with CI/CD pipelines and modern delivery practices
  • 5+ years of experience

Nice to have:

  • Experience in cloud-native or microservices-based environments
  • Familiarity with developer platforms or tools for external/internal developer experience

Additional Information:

Job Posted:
April 27, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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