Specialist Test Engineer

Cosmote Global Solutions Nv

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Luxembourg, Luxembourg, Luxembourg on site Until 8/22/2026 First posted November 7, 2025 Last posted November 7, 2025
Job description

COSMOTE Global Solutions, as a member of OTE Group of Companies, is an ICT Systems Integrator delivering a broad range of ICT Solutions and Services.

CGS provides a broad range of ICT Services focusing on: Cloud, Data Centre operations, Networking, Cybersecurity, BI and Data Warehouse, Big Data, Service Desk, Proactive Monitoring, Operations and Support, Service Management, Project and Programme Management, and Professional Services.

Responsibilities:

  • Review and analyze project specifications,
  • Develop effective strategies and test plans including design and estimation of test cases,
  • Create and execute tests (automated and manual) and analyze results,
  • Programming test automation using Java, Katalon, Selenium, TestNG
  • Report bugs and errors to development teams & assist in troubleshooting issues and reproduction steps,
  • Work with cross-functional teams to ensure quality throughout the software development lifecycle,
  • Coordinate testing team activities during release & post-release testing

Requirements

  • Master’s degree in IT, Computer science, Engineering, or related field.
  • 11+ years of experience as a Test Engineer, with a focus on automation testing
  • Proficiency in English
  • Strong knowledge of testing methodologies and best practices.
  • Ability to analyze complex systems and provide efficient solutions.
  • Proven experience in test design and test execution
  • Proven experience in quality assurance
  • Proven ability to work in Agile teams (ISTQB AGILE Certified Tester or equivalent)
  • Minimum 5 years of experience in quality assurance in large (more than 500 employees) organizations, in the credit risk and compliance areas.
  • Minimum 5 years of experience in automation scripting (Katalon and selenium TestNG)
  • Proven experience in QA coordination or test manager position
About this role

Summary

Develop, execute, and coordinate automated/manual tests; analyze results; ensure software quality in large organizations.

Job title

Specialist Test Engineer

Experience level

11+ years

Industry

information technology

Location requirements

Luxembourg, on-site, no remote work

Salary

Not specified

Management role

Yes

Skills & keywords

Required skills

JavaKatalonSeleniumTestNGtesting methodologiesAgileISTQBQA coordination

Preferred skills

None specified

Specializations

automation testingtest automationsoftware testingquality assurance
Locations

Structured locations inferred from the posting.

Luxembourg

On-site City
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