Working Student – Firmware Testing - Stuttgart

About Us

Gutermann Technology is a global technology leader in intelligent water loss management and acoustic leak detection. Founded in 1948, Gutermann develops high‑precision, firmware‑driven hardware and software systems that enable water utilities worldwide to detect, locate, and monitor leaks in water distribution networks quickly and reliably. Our solutions range from portable acoustic leak detection tools to permanent, fully automated network monitoring systems used to reduce non‑revenue water and protect critical infrastructure.

At the core of our products are embedded loggers, sensors, and correlating devices that combine firmware development, acoustic signal processing, modem‑based communication and cloud‑based analysis. Gutermann pioneered fully automatic correlation across distributed sensor networks, allowing leaks to be identified and pinpointed with high accuracy and minimal manual effort. Headquartered in Zug, Switzerland, with R&D facilities in Stuttgart and Ravensburg, we develop technology that directly contributes to sustainability by helping utilities preserve one of the world’s most valuable resources: water.

Job Overview

This role supports the firmware development team at Gutermann Technology by strengthening and scaling testing and validation activities. As a Working Student, you will contribute to the creation, execution, and continuous improvement of automated and structured tests for firmware‑based loggers and modem‑enabled embedded devices. The primary goal of this role is to reduce manual testing effort for developers while improving test coverage, repeatability, and product quality.

Your Tasks

• Create and execute automated test cases for firmware‑based loggers
• Convert existing manual test procedures into automated or semi‑automated tests
• Execute structured firmware test cycles on real hardware (loggers, modems)
• Analyze, reproduce, and document test results and firmware issues
• Help improve test procedures, tooling, and internal documentation
• Work closely with firmware developers during validation and debugging
• Help improve test tools, scripts, and test environments over time

Your Profile

• Enrolled student in a relevant technical field
• Strong interest in embedded systems, firmware, and software testing
• Programming experience in Python
• Comfortable working with hardware and physical test setups
• Basic experience using lab equipment such as multi-meters and power supplies.
• Structured, careful, and reliable working style
• Able to understand and work with technical documentation
• Good English communication skills

Nice to Have

• Initial experience with pytest‑based test automation
• Basic programming experience in C
• Basic understanding of embedded communication (UART, I²C, SPI)
• Basic understanding of mobile communication (modems, NB‑IoT, IoT)
• Interest in CI/CD or automated validation environments

Our Offer

• Hands‑on experience in embedded firmware testing and automation
• Close collaboration with experienced firmware and hardware engineers
• Real responsibility with visible impact on product quality
• Flexible working hours compatible with your studies
• Opportunity for long‑term working student engagement (and potential thesis work)
• Insight into real industrial product development in a global technology company
• Office location: Stuttgart‑Feuerbach (approx. 10 minutes’ walk from Feuerbach S‑Bahn station)