Test Engineer Communication Systems (Python, Pytest, Linux Networks)

• We are looking for a talented and motivated
• Test Automation Engineer – Communication Systems to join our customer’s team in

Berlin, Germany .

In this role, you will support the validation and quality assurance of communication management software and network-based systems in a safety-critical environment.

Responsibilities

• Design, create, and specify new automated and manual test cases based on system requirements.
• Execute automated test campaigns independently and ensure the continuous maintenance of existing test suites.
• Extend and optimize the existing test framework using Python and Pytest.
• Perform manual testing activities and validate software functionality against defined requirements.
• Analyze system behavior, identify defects, and conduct detailed investigations of software bugs.
• Document defects, test results, and corrective actions in a structured and traceable manner.
• Collaborate closely with software development teams to support issue resolution and root cause analysis.
• Provide transparent reporting of testing progress and quality status to project stakeholders.
• Create and maintain test documentation in Jira and Xray according to established quality standards.
• Support compliance activities related to safety-critical software development standards, including DO-178C.
• Required Qualifications
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Electrical Engineering, Industrial Engineering, or a comparable qualification.
• Proven experience in manual and automated software testing.
• Hands-on experience developing and maintaining automated test frameworks using Python and Pytest.
• Strong knowledge of Jira and Xray for test management and defect tracking.
• Solid understanding of Linux environments and the Linux Network Stack.
• Experience in network analysis and troubleshooting using Wireshark.
• Knowledge of Layer 3 routing protocols and network communication concepts.
• Experience working with virtualized environments such as Proxmox.
• Ability to investigate complex software issues and document findings with a high level of attention to detail.
• Nice-to-Have
• Experience working in safety-critical software environments.
• Knowledge of DO-178C software development and verification standards.
• Experience in certification or regulatory environments, including BSI-related projects.
• Understanding of network security concepts and best practices.
• Experience testing communication management platforms, network services, or distributed systems.
• Knowledge of CI/CD processes and automated testing pipelines.
• Experience in aerospace, defense, transportation, or other highly regulated industries.
• Strong analytical skills and the ability to work effectively in multidisciplinary engineering teams.

T&Sis a European consulting firm with more than 3,000 employees and offices in 10 countries worldwide.

Over the past few years, T&S has experienced strong growth, particularly in the fields of digital transformation, embedded systems, and operational excellence consulting.

Together with our teams, we develop smart, secure, and sustainable solutions for tomorrow’s challenges.

At T&S, you can expect exciting career opportunities, an excellent working environment, and the chance to collaborate with recognized experts.

That’s why we invite you to become part of our great team.

Our Working Environment

We promote inclusion and diversity through our CSR initiatives, including sponsorship programs, diversity policies, sports activities, wellness workshops, and many other projects.

What We Offer

• Flexible working hours, home office opportunities, 30 days of annual leave, and additional leave for special occasions
• Modern office facilities, IT equipment, and complimentary coffee and beverages
• Individual career development programs with long-term growth prospects through regular discussions with HR and management
• Extensive training opportunities, paid language courses, and access to the T&S digital learning platform
• Internal mobility opportunities across the company upon request

Our positions are open to people with disabilities.

T&S Group promotes diversity and equal opportunities in the workplace.

All qualified applicants will be considered equally regardless of origin, gender, age, religion, or disability.

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