Tinental is a pioneering energy efficiency company leveraging AI-powered IoT technology to optimize industrial machinery. We are seeking a curious, passionate and results-driven Senior Firmware Engineer to design and develop high-impact embedded firmware for smart pumps and fans, helping make industrial systems more efficient and sustainable.
Apply now
We currently have an opening for a Senior Engineer to join our growing team and contribute directly to innovative, real-world solutions. You will take ownership of the firmware architecture, mentor other engineers and drive key feature delivery and system optimization.
Develop and optimize automatic modulation algorithms for pumps/fans (flow, head, power calculations, PID pressure/flow control, energy efficiency via affinity laws).
Implement and manage Modbus RTU/TCP (multi-slave register handling), Profibus (inverter communication), and dynamic dictionaries for multiple inverter brands (ABB, Danfoss, Siemens, Wilo, Vacon, etc.).
Build FreeRTOS modules for data acquisition, task synchronization (semaphores/queues), health monitoring, and watchdog management.
Optimize stack, heap, and dynamic memory (ESP32 PSRAM); profile and debug using ESP-IDF tools.
Parse and evaluate runtime functions (e.g., tinyexpr), perform binary searches for inverse solutions, handle multi-dimensional efficiency curves.
Work closely with hardware teams on integration and low-level debugging (JTAG, oscilloscope, logic analyzer).
5+ years of embedded firmware development in C
Deep knowledge of FreeRTOS and multi-threaded programming
Experience with at least one industrial protocol (Modbus/Profibus/CANopen)
Understanding of pump/motor control systems
Low-level debugging, real-time system problem-solving, and rigorous testing mindset
Optimization for constrained memory (<4 MB flash, ~520 KB RAM)
Ability to read and interpret technical inverter datasheets
Knowledge of industrial inverters (VFD – Variable Frequency Drives)
Experience with PID and automatic control algorithms
Familiarity with AWS IoT Core / MQTT
Embedded SQLite experience
Knowledge of FlatBuffers for data serialization
Permanent contract (salary range: €45,000 – €55,000 depending on experience and level) + bonus
2 days per week remote work
Free company canteen
Be part of a diverse, dynamic, and innovation-driven team
A clear and progressive career plan
A real opportunity to work on a proprietary product with direct impact on energy efficiency and industrial sustainability
Company MacBook
We're building a high-performance team of thinkers and builders who value autonomy, depth, and excellence. At Tinental, your growth is central to our mission. We believe in transparency, meritocracy, and continuous learning – where contribution matters more than credentials. You'll have clear paths to mastery, mentorship, and structured career levels across technical, managerial, and specialist tracks. If you want your skills stretched, your ideas sharpened, and your teammates to push you further, this is the place.
We're reshaping the future of industry with cutting-edge technology and sustainable solutions. Whether you're a seasoned professional or a fresh graduate, we're always on the lookout for passionate people who are eager to make a difference.
