Yalantis

We’re looking for an Embedded Engineer to join a greenfield medical device / neurotech project. The product is a behind-the-ear wearable EEG device designed for ambulatory epilepsy monitoring. The device collects EEG, accelerometer and impedance data and streams it over BLE to a companion mobile app.

Responsibilities:

• Develop firmware for a greenfield wearable EEG medical device based on Nordic nRF54L15 and Zephyr RTOS.
• Own firmware development from board bring-up and architecture to integration and system testing.
• Develop drivers and data acquisition for EEG AFE, accelerometer, DAC, external RTC and PSRAM.
• Implement continuous EEG acquisition, SPI/FIFO communication, interrupt/DMA handling and RAM ring buffering.
• Design and implement BLE streaming and GATT services, including pairing, bonding and reconnection.
• Implement secure boot, DFU/OTA and power management to support ~72-hour battery life.
• Develop firmware unit/integration tests, CI and a Python-based emulator/test harness for mobile-side BLE communication.
• Contribute to firmware architecture, SRS/SDD, architecture diagrams and other engineering documentation.
• Collaborate directly with the US-based client team to define requirements, hardware/software interfaces and BLE/GATT specifications.

• Work autonomously as the primary firmware engineer, driving technical decisions and communication throughout the project.

   

Requirements:

• 5+ years of hands-on embedded firmware development experience.
• Strong commercial experience with Nordic Semiconductor SoCs; nRF54L15 is preferred, but previous nRF generations are considered.
• Strong experience with Zephyr RTOS and C/C++.
• Solid hands-on experience with BLE/BLE GATT, including data streaming, pairing, bonding and reconnection.
• Practical experience with SPI, interrupts/DMA and continuous real-time or near-real-time data acquisition.
• Strong experience with low-power optimization for battery-powered embedded devices
• Experience integrating sensors and peripherals such as accelerometers, DACs, RTC or external memory.
• Experience with secure boot, DFU/OTA, firmware testing and CI.
• Experience building emulators/test harnesses, preferably with Python.
• Strong firmware architecture and technical documentation skills; SRS/SDD experience is a plus.
• Experience in medical devices, wearables, healthcare or other regulated products is a strong advantage.

• English level: Intermediate strong or higher.

   

Our Benefits:

• Professional growth: Individual development plan, mentorship, reimbursement for professional certifications and English lessons, access to professional courses in Corporate Learning Management System.
• Community: Tech community and knowledge-sharing events, English speaking club, corporate library and book club, volunteering and charity initiatives.
• Wellbeing: Medical insurance, regular medical check-ups, sport reimbursement, paid vacation and sick leave, mental health support and events.
• Work environment: Fully-equipped offices, top-notch equipment, flexible work format, activities both in-office and online, Y-bucks and access to the Yalantis store.