Senior Embedded Engineer (w/m/d) - Firmware & Embedded Linux

WHO ARE WE? At Stenon, we are on a mission to democratize soil data. As the global market leader in real-time soil analytics, we empower farmers with actionable insights to improve yield, crop quality, and soil health while reducing costs and environmental impact. To advance our next generation of soil sensing technology, we are looking for an Embedded Firmware Developer who can build the on-device software that turns hardware measurements into reliable data directly from the field. POSITION As an Embedded Software Engineer / Firmware Engineer, you will take ownership of Linux system development and microcontroller firmware for our soil sensor platform, and work closely as part of our Device Engineering Team. You will implement, optimize  and maintain embedded Linux components alongside robust firmware for microcontrollers, ensuring reliable operation across the full device stack. Your work will involve interfacing SOC/SOM with our boards hosting different sorts of sensor, managing data acquisition, and enabling reliable communication between distributed system components under harsh outdoor conditions. You will collaborate with hardware, firmware and backend/cloud teams to bring integration concepts from prototype to production-ready devices. This includes ensuring stable system behavior, reliable Linux system image and firmware boiling down to robust device functionality. You will implement a robust Linux image as well as microcontroller firmware update mechanism. And with the use of Python, you will simplify  complex problems. YOU WILL * Develop and maintain embedded Linux systems using Yocto for ARM-based platforms (e.g. Raspberry Pi and similar SBCs) * Configure, extend, and debug Yocto build environments, layers, and recipes * Support and improve Linux-based system bring-up and debugging on new hardware * Interface embedded Linux systems with microcontrollers * Write firmware that runs on ARM Microcontrollers (e.g. STM32) * Support on hardware related software development using Python * Develop tooling for automation, testing, deployment, and diagnostics * Collaborate closely with hardware, firmware, and backend/cloud teams * Participate in code reviews and contribute to improving system architecture and maintainability YOU HAVE * Solid experience with Linux Distributions * Practical experience with the Yocto Project (building images, modifying recipes, working with layers) * Experience with ARM-based embedded platforms (Raspberry Pi or similar SBCs) * Expert embedded C/C++ knowledge for firmware development * Experience working with microcontrollers (e.g. STM32, ESP32, or similar) * Hands-on experience with hardware interfaces (GPIO, UART, SPI, I2C, etc.) * Good knowledge of Python * Experience using Git and collaborative development workflows * Ability to debug complex issues across hardware/software boundaries WHAT WE OFFER * Real-World Impact: Design hardware that goes directly into the hands of farmers, solving global food production and climate challenges. * Ownership & Growth: A key role in a fast-growing scale-up where you own your area of responsibility with flat hierarchies and fast decision-making. * Collaborative Culture: Work in a highly productive, international team that values hands-on development and mutual support. * Year-End Break: Enjoy a paid company-wide closure between Christmas and New Year to recharge and spend time with loved ones. * Seamless Commuting:  Choose between an ABC Berlin/Potsdam travel pass or a Deutschland-Ticket to keep you mobile. * Team Spirit: Annual company retreats to warmer climates (last year we went to Gran Canaria), regular social events, and a fully stocked kitchen with coffee, tea, and snacks. WHY US? We are changing how farmers understand and manage their soil—moving from lab-based analysis to real-time insights directly in the field. We value transparency, ownership, and continuous improvement, and we believe great products come from teams that respect and support each other. We set high standards, reward performance, and foster a positive, constructive feedback culture. INTERESTED? If you are ready to tackle the challenge of making complex soil data instantly accessible and actionable for farmers worldwide, we want to hear from you. Send us your application (CV or LinkedIn). Reach out to careers@stenon.io if you have any questions – we're happy to help.

Description Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source. Today, the Enphase Energy System enables users to make, use, save, and sell their own power. Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries. Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future! About the role This position is part of the core Engineering R&D group, which focuses on launching Residential and Commercial/Industrial storage products. Our team is responsible for designing, prototyping, and launching Storage Systems at scale — cutting edge solutions that integrate Enphase’s core technologies like IQ series microinverters, home energy ecosystem of EV chargers, combiners, and more that are best in the market to deliver complete solutions for our consumers. We’re looking for a motivated individual who thrives in a fast-paced environment and can collaborate closely with the team to develop and deliver innovative solutions. What you will do Develop board level and system/product level embedded software for solar and battery-based products. Work with hardware and system engineers to conceptualize and document the firmware design architecture for implementation. Work with cross function teams like SDVT (system design validation testing) engineers to test and troubleshoot prototype designs. Mentor Junior Engineers and be able to work on residential and commercial product domains seamlessly Who you are and what you bring B.E/ B. Tech or M.Tech Electrical Engineering or Computer Engineering or Computer Science B.E and 12+ years  and M.Tech 8+ years’ experience in a similar (non-academic) role as an embedded software or firmware engineer Proficiency scripting language Python to automate software development workflows. Expertise in C for real-time applications. Solid experience with bare metal and real-time operating systems (RTOS) Being curious and ability to troubleshoot firmware related issues within complex systems. Relentless pursuit of problem-solving skills. Ability to test code and hardware both with and without external test equipment such as oscilloscopes, power meters, etc. Familiarity with software development processes, Atlassian cloud suite (Confluence, JIRA), Git configuration management. Familiarity with development tools such as GCC, GDB, Eclipse, GNU Make, etc. Familiarity with developing drivers for sensors and closed-loop control algorithms. Ability to carry a design task from concept to implementation and verify. Ability to document engineering requirements (like JAMA, Polarion, DOORs), document solutions, and test new firmware designs. Experience with launching products on production scale to see through customer or field issues for learnings. Familiarity with ARM Cortex-M4/7, STM32 or similar microcontroller architectures is a plus. Zephyr RTOS experience is a plus. Familiarity with bootloader design and implementation is a plus. Familiarity with AC grid simulators and DC to AC inverters is a plus. Familiarity with developing controls for cooling systems like fans, chillers, pumps etc is a plus. Familiarity and experience with Battery Management System (BMS) is a plus. Knowledge in worldwide (UL and IEC standards) electrical advanced grid functions and faults conditions is a plus. The base pay range for this position is $110,000 to $167,000 per year. This salary range may be modified in the future. The successful candidate’s starting pay will be determined based on job-related skills, experience, education or training, work location, and market conditions. This position is also eligible for bonus, equity, and benefits.