Embedded Software Engineer (m/w/d) Sensorik & Messsysteme

About Hydrotechnik GmbH

Hydrotechnik GmbH is a company with around 150 employees, an annual turnover of approximately 40 million EUR, and over 60 years of experience. We develop and manufacture high-precision measurement and sensor systems for optimizing fluid systems for demanding industrial applications worldwide. Our products are technically complex, system-critical, and used in the field long-term.

Why this role now

While many companies are in a cost-saving mode in the current economic climate, Hydrotechnik GmbH is consciously taking the opposite approach: we are strategically investing in technology, digitalization, and product performance.

Embedded Software Engineer (m/f/d) Sensorics & Measurement Systems

• Start Date: Immediately
• Employment Type: Full-time / Permanent
• Location: Limburg an der Lahn

Responsibilities

• Development, maintenance, and further development of firmware for sensor and measurement systems
• System-level programming in C and Rust (Bare Metal, partially Embedded Linux)
• Development of real-time capable firmware with a focus on deterministic behavior, interrupt handling, and resource management
• Implementation and use of industrial communication interfaces (CAN, I²C, SPI, USB, Ethernet, Bluetooth)
• Work with STM32 microcontrollers, including register-level programming and peripheral initialization
• Consideration of robustness, fault tolerance, watchdog concepts, and industrial conditions
• Qualification of firmware on existing or self-developed test setups
• Setup and use of automated tests (e.g., unit tests, hardware-in-the-loop, regression tests)
• Close collaboration with hardware, product management, quality, production, and service

Requirements

• Several years of professional experience in embedded software development in Rust and C
• Very good understanding of microcontroller architectures and system-level programming
• Proficient use of Git and structured configuration management
• Experience with toolchains, cross-compilers, and clean build processes
• Analytical mindset, high degree of personal responsibility, hands-on mentality
• Commitment to code quality, stability, and maintainability
• Very good German and English language skills

What makes this position special

• Your software is part of real series products – not an internal tool or a prototype.
• You will work on systems that must function reliably in the field for years.
• Technical decisions are not delegated here.
• Short decision-making processes, direct influence, no corporate politics.

What we offer

• Technically demanding products, not playgrounds.
• Scope for design and decision-making from day one.
• Direct influence on product generations.
• Attractive remuneration and a stable environment.
• Ideal location in the Rhine-Main area (Wiesbaden, Mainz, Frankfurt, Giessen, Koblenz).

Contact

If you want to not just program embedded systems but master them, then you are in the right place. karriere@hydrotechnik.com

Your contact person at Hydrotechnik is Elisa Heuser +49 6431 4004-727.

Hydrotechnik GmbH • Holzheimer Straße 94-96 • 65549 Limburg • 06431 4004 0 • www.hydrotechnik.com