Senior Engineer, Supercapacitor Hardware Engineer

About the role

Job Summary: This position is responsible for end-to-end CMS hardware development of supercapacitor energy storage systems, including CMS system architecture design, supercapacitor monitoring & balancing, analog sensing circuits, PCB design, and protection & functional safety. The role will collaborate cross-functionally to deliver robust, high-power hardware solutions from concept through validation and system integration. This position is sitting in China, serving global product development and business growth for supercapacitor energy storage applications. Key Job Responsibilities: - Design CMS hardware architecture for supercapacitor systems, including Cluster Control Unit (CCU)/Cell Management Unit (CMU). - Develop CMS/CCU/CMU hardware system, including requirements analysis, circuit design, key components calculation and selection, cost analysis. - Develop supercapacitor monitoring and balancing hardware: voltage/temperature acquisition, passive/active balancing, AFE peripheral circuits, isolated communication, and daisy-chain solutions. - Design analog and sampling circuits (current/voltage/temperature sensing), including ADC protection/filtering, sampling accuracy improvement, and EMC robustness for real-time control. - Lead PCB design, optimize switching nodes, grounding, thermal distribution; troubleshoot hardware issues and support certification testing. - Design protection and functional safety mechanisms (OV/UV/OC/SC/OT, pre-charge/discharge, SSR/contactors control, fail-safe) and support system-level safety design. - Perform hardware debugging, issue analysis, and validation using oscilloscopes, power analyzers; support HIL/bench testing and system integration verification. Location: Shanghai, CHN Travel: 15% Education/Professional Knowledge - Bachelor's degree or above in Electronics, Electrical Engineering, Automation, or related fields. - 5-8+ years of experience in BMS system, energy storage, or automotive energy systems, with full-cycle hardware development experience. - Familiar with analog hardware design capability: current sensing (Shunt/Hall), high-voltage sensing, ADC interface design, filtering, and EMC considerations. - Proficient in high-current PCB layout, optimization, and thermal design; - Familiar with MCU/control basics (PWM, ADC synchronized sampling, CAN FD, SPI/UART) and real-time control system integration. - Proficient with tools such as Altium Designer, LTspice and so on. - Preferred: experience with supercapacitor CMS systems, AIDC/data-center projects. - Preferred: familiarity with NXP S32K / ST STM32 / TI C2000 MCUs, and Analog Devices ADBMS series / TI BQ series AFEs. Clarios is the global leader in advanced, low-voltage battery technologies for mobility. We power progress through ever-smarter solutions for virtually every kind of vehicle. With 16,000 employees in over 140 countries, we bring deep expertise to our Aftermarket and OEM partners, and reliability, safety and comfort to everyday lives. We answer to the planet with a rigorous ESG focus - advancing best-in-class sustainability practices and advocating for them across our industry. Learn more about us at www.clarios.com . Clarios is the creator behind VARTA vehicle batteries, which are designed to deliver the optimal level of power and longevity for every kind of vehicle. Whether you need batteries for your heavy-duty commercial vehicle, your highly equipped car with Start-Stop, or any kind of electric vehicle - VARTA always offers the right technology for every energy demand. Equal Employment Opportunity: We recognize that people come with a wealth of experience and talent beyond just the technical requirements of a job. If your experience is close to what you see listed here, please apply. Diversity of experience and skills combined with passion is key to challenging the status quo. Therefore, we encourage people from all backgrounds to apply to our positions. We are an Equal Opportunity Employer and value diversity in our teams in terms of work experience, area of expertise, gender, ethnicity, and all other characteristics protected by laws in the countries where we operate. For more information on our commitment to sustainability, diversity, and equal opportunity, please read our latest report . To All Recruitment Agencies : Clarios does not accept unsolicited agency resumes/CVs. Please do not forward resumes/CVs to our careers email addresses, Clarios employees or any other company location. Clarios is not responsible for any fees related to unsolicited resumes/CVs.