PstrongFirmware Engineer /strong /ppLocation: Hybrid - 2 days remote /ppContract: Permanent /ppbr/ppTinental is a pioneering energy efficiency company leveraging AI-powered IoT technology to optimize industrial machinery. We are seeking curious, passionate and results-driven Firmware Engineers to design and develop high-impact embedded firmware for smart pumps and fans, helping make industrial systems more efficient and sustainable. /ppbr/ppWe currently have openings for Mid-Senior and Senior Engineers to join our growing team and contribute directly to innovative, real-world solutions. /ppbr/ppstrongWhat You’ll Do: /strong /pullistrongModulation Algorithms: /strong Develop and optimize automatic modulation algorithms for pumps/fans. /lilistrongIndustrial Protocol Integration: /strong 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.). /lilistrongReal-Time Firmware Development: /strong Build FreeRTOS modules for data acquisition, task synchronization (semaphores/queues), health monitoring, and watchdog management. /lilistrongMemory Performance Optimization: /strong Optimize stack, heap, and dynamic memory (ESP32 PSRAM); profile and debug using ESP-IDF tools. /lilistrongMathematical Computation: /strong Parse and evaluate runtime functions (e.g., tinyexpr), perform binary searches for inverse solutions, handle multi-dimensional efficiency curves. /lilistrongCollaboration: /strong Work closely with hardware teams on integration and low-level debugging (JTAG, oscilloscope, logic analyzer). /li /ulpbr/ppstrongRequired Skills: /strong /pulli3+ years of embedded firmware development in C /liliDeep knowledge of FreeRTOS and multi-threaded programming /liliExperience with at least one industrial protocol (Modbus/Profibus/CANopen) /liliUnderstanding of pump/motor control systems /liliLow-level debugging, real-time system problem-solving, and rigorous testing mindset /liliOptimization for constrained memory (4 MB flash, ~520 KB RAM) /liliAbility to read and interpret technical inverter datasheets /li /ulpbr/ppstrongWhat We Offer: /strong /pulliPermanent contract /lili2 days per week remote work /liliFree company canteen /liliBe part of a diverse, dynamic, and innovation-driven team /liliA clear and progressive career plan /liliA real opportunity to work on a proprietary product with direct impact on energy efficiency and industrial sustainability /li /ulpbr/ppWe’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. /ppbr/ppYou’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. /p