You will lead the hardware electronics cycle for a platform integrating electrochemical, optical, and capacitive sensors to monitor biological processes in real-time. This high-impact role involves designing low-signal analog front-ends and mixed-signal PCBs, while coordinating firmware across ESP32 and Linux systems. You’ll be the primary architect shaping the hardware for global pharmaceutical manufacturing lines.
Senior Electronics Engineer at Cultzyme
Join Cultzyme in San Sebastián to lead the hardware development of an intelligent bioreactor platform that is revolutionizing biomanufacturing. As a Senior Electronics Engineer, you’ll own the full lifecycle of complex sensing hardware—from designing low-signal analog front-ends and mixed-signal PCBs to coordinating firmware for pharmaceutical production lines. Backed by Nucleus Capital and advised by Merck executives, Cultzyme offers you a dedicated lab, relocation support, and a high-ownership role at the intersection of biology and hardware. If you’re ready to build the sensing platform that defines how biology is manufactured, this is your chance to make a massive impact.
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Location
San Sebastián, Spain
Compensation
Not Disclosed + Equity
Company
Cultzyme
Role overview
Biotechnology1-15 employees
Cultzyme is a deep-tech company specializing in the development of intelligent bioreactors and bioprocessing platforms that integrate advanced hardware, AI, cloud computing, and novel sensors to optimize cell growth, fermentation, and production of sustainable alternative proteins, biopharmaceutical therapies, and biosynthetic tissues.
What you will do
- Design low-signal analog front-ends and impedance measurement circuits for sensors operating on cell cultures, handling complex electrochemical and amperometric signals.
- Lead the full electronics cycle in Altium Designer, including schematic design, multilayer PCB layout, bring-up, and managing manufacturing with international suppliers.
- Coordinate firmware development on ESP32, STM32, and embedded Linux (Raspberry Pi 5) while defining calibration protocols that ensure measurements make biological sense.
Who this is a fit for
- Master’s degree in Electrical Engineering with 5+ years of experience shipping product hardware and serious expertise in Altium for mixed-signal, multilayer designs.
- Proven track record of developing sensors from scratch, including experience with impedance analyzers, precision multimeters, and various measurement principles.
- Proficient in bare-metal firmware or RTOS (ESP-IDF, STM32 HAL/LL, or FreeRTOS) and industrial protocols like I²C, SPI, UART, CAN, and MQTT.
Why this role is remarkable
- Lead the full hardware lifecycle for a platform destined for the world’s most relevant pharmaceutical manufacturing lines, moving from first principles to industrialization.
- Work in a high-talent, ~15-person team backed by Nucleus Capital and Merck advisors, blending the intellectual honesty of a research lab with startup execution speed.
- Access your own dedicated lab and workshop with a budget for specialized equipment, directly impacting the future of biopharmaceuticals and alternative proteins.
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