Software Test Engineer – Secure Communications

citema systems GmbH

Software Test Engineer developing and testing Software Defined Radios in a collaborative environment. Engaging in automation and documentation while working in a hybrid model from Stuttgart.

Posted 7/21/2026full-timeStuttgart • 🇩🇪 GermanyMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in embedded software development using C/C++ and Python, with a strong focus on test case design, automation, and documentation. Proficient in working within safety and security environments, with effective communication skills in German for collaboration with stakeholders.

Highest-signal resume keywords

Embedded Software DevelopmentC/C++ ProgrammingTest ManagementConfiguration Management (Git)German Language Proficiency

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Hard Skills

Embedded Software DevelopmentC/C++ ProgrammingPython ProgrammingTest ManagementTest Design TechniquesIntegration StrategiesConfiguration Management (Git)CMakeSignal AnalysisHardware-in-the-Loop (HiL) Systems

Tools & Technologies

Embedded LinuxTest Automation ToolsTest Pipelines

Industry Keywords

Agile DevelopmentSafety/Security EnvironmentsNetworking Operating Systems

Tech Stack

Tools & technologies

LinuxPython

About the role

Key responsibilities & impact

You will work in an agile, distributed software development team on the latest generation of Software Defined Radios
You will create and execute test cases for the code of the development platforms
To meet customer requirements, you will test the code against the requirements and work on automating tests and test pipelines
In addition to designing and creating test cases, documenting them is also an essential part

Requirements

What you’ll need

Degree in Computer Science, Electrical Engineering, Communications Engineering, Physics, or a comparable qualification
Advanced skills in embedded software development with C/C++, as well as Python and (embedded) Linux
Knowledge of test management (test methods, test/integration strategies, test design techniques)
Experience with configuration management systems (e.g. Git)
Desirable: experience with operating systems (especially networking) and hardware knowledge (HiL systems, signal analysis)
Experience in safety/security environments and knowledge of CMake desirable
Very good spoken and written German is required for effective communication within the project environment and with our German-speaking customers.

Benefits

Comp & perks

Active involvement in innovative future technologies
Flexible new-work model with hybrid working options
Permanent employment contract
Givve card as a tax-free company benefit
Maximum decision-making and creative freedom
Individual career planning and development opportunities
Knowledge transfer and synergies through a strong team
Technological variety with exciting insights into safety-critical systems
And: challenges that are genuinely enjoyable!