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 general team, guided by respect, integrity, and a passion for doing better every day.
Job Description Project Description The team is responsible for the development & operations of Monitoring and Data Analytics Tools for the Network Control Platform of Deutsche Telekom Germany (AAA Fixed Net Germany).

The project is responsible for controlling Internet access and managing the underlying network infrastructure for Deutsche Telekom Germany. It supports millions of concurrent user sessions while ensuring high availability, scalability, and reliability.

Key capabilities include: Authentication, Authorization, and Accounting (AAA) for secure user access management.

Dynamic service provisioning to enable automated customer and network service activation.
Support for all-IP services, including MagentaTV, IP telephony, and other next-generation network services.
Activity Description 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
Qualifications Required Skills Strong knowledge of IP network infrastructure.
Experience with IP protocols (Radius, Diameter, SIP, SOAP).
Database knowledge (Redis, SQL databases).
Experience with software testing methodologies (manual and automated testing).
Familiarity with testing tools (e.g., Jira, Robot Framework).
Experience with AI-supported testing tools is a plus.
Strong understanding of requirements and specifications.
English proficiency (minimum B2 level).
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.

Additional Information What do we offer you? T‑Social: socialinitiatives(sports,community,health, ...).

Hybridworkmodel(remote/on-site).
Flexibleworkinghours.
Growth&development; Weeklylanguageclasses(English & German).
International Mentoring Sessions&Experience; Days.
Flexiblecompensationplan (healthinsurance,mealvouchers,childcare,transport).
Socialfund.

Wellbeing& time off 26+workingdaysofvacationperyear.

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📌 Automation tester (m/f/d) (Madrid)
🏢 T-Systems Iberia
📍 Madrid