Automation tester (m/f/d)

About the Position

Automation tester (m/f/d)

Join T-Systems as an Automation Tester to validate software releases and enhance test automation frameworks for Deutsche Telekom Germany.

Responsibilities

• Execute and validate software releases through structured testing.
• Develop and enhance test automation frameworks.
• Maintain and evolve CI/CD pipelines and test environments.
• Operate and support test systems, including deployment of software deliveries.
• Design, execute, and document platform-level test cases, including reporting for formal acceptance.
• Define and refine test cases to extend coverage and validate new functionalities.
• Integrate solutions into the Deutsche Telekom test framework.
• Ensure proper documentation within internal tool systems.
• Perform troubleshooting and provide operational support during testing and rollout phases.
• Support internal and external stakeholders in the test environment.

Requirements

• Required Skills

  • Strong knowledge of IP network infrastructure.
  • Advanced Linux expertise.
  • Experience with IP protocols (Radius, Diameter, SIP, SOAP).
  • Cloud technologies: containers, Kubernetes, Docker.
  • Database knowledge (Redis, SQL databases).
  • Experience with software testing methodologies (manual and automated testing).
  • Familiarity with testing tools (e.g., Jira, Robot Framework).
  • CI/CD toolchain experience (e.g., Git, Ansible, Cucumber, Flux, Argo).
  • Basic programming skills (e.g., Java, Python, JavaScript) are an advantage.
  • Experience with AI-supported testing tools is a plus.
  • Strong understanding of requirements and specifications.
  • English proficiency (minimum B2 level).

• Methodological Competencies

  • Analytical and structured thinking.
  • Detail-oriented and precise working style.
  • Strong skills in defect analysis and documentation.
  • Solid understanding of testing processes (e.g., Agile, Scrum).

• Personal Qualifications

  • Strong teamwork and communication skills, especially in international environments.
  • High level of initiative and accountability.
  • Solution-oriented mindset.
  • Willingness to learn and adapt to new technologies.
  • Flexibility to work night shifts and participate in on-call duties.

We Offer

Work environment & flexibility

• International, dynamic and collaborative environment.
• T-Social: social initiatives (sports, community, health,...).
• Hybrid work model (remote/on-site).
• Flexible working hours.

Growth & development

• Customized training: access to Coursera to learn whatever you want, whenever you want.
• Weekly language classes (English & German).
• International Mentoring Sessions & Experience Days.

Compensation & benefits

• Flexible compensation plan (health insurance, meal vouchers, childcare, transport).
• Telemedicine.
• Life and accident insurance.
• Social fund.

Wellbeing & time off

• 26+ working days of vacation per year.
• Free access to specialist services (medical, legal, wellness).
• 100% salary coverage during medical leave.

About the Company

T‑Systems is part of the Deutsche Telekom Group, with around 30,000 employees worldwide. We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers’ experience.

We trust people: we offer autonomy, continuous support, and a collaborative environment where you can grow without limits. We are one global team, guided by respect, integrity, and a passion for doing better every day.