?? About Us We build smart agricultural technologies that help growers make better decisions through accurate, accessible, and data-rich sensing. Our mission is to empower nature with intelligence — delivering real-time environmental insights through a harmonious combination of hardware, software, and science. We are a Dutch-founded company with a strong presence in China, operating as a close-knit, international team. We believe in mastery: the idea that everyone can grow through craftsmanship, curiosity, and responsibility. We offer a high-autonomy work culture where engineers are trusted to make decisions and drive results. You’ll be surrounded by people who care deeply about their work and the impact it has on the world. ?? Location: Changsha ?? International agri-tech company with Dutch roots ?? What you’ll do ? Test full firmware flow (unit + black-box) for STM32F0 ? Report bugs and quality issues to firmware/hardware teams ? Write basic C++ firmware improvements ? Use Python and tools like DeepSeek to automate flashing, configuration, and test analysis ? Work with Modbus, LoRa, OTA, watchdogs, and smart sensors ?? What we’re looking for ? 3+ years firmware experience (STM32 or similar) ? Comfortable with low-current measurement ? English: C1 writing, B2 speaking (training support offered) ? Solid understanding of embedded systems ?? What we offer ? ?? Competitive salary ? ?? Flexible hours ? ?? Partially remote work ? ?? 22 paid days off/year (including Chinese public holidays) ? ?? Real ownership of testing strategy ? ?? Space to grow and improve every day