Senior LV/HV Isolation Hardware Design Engineer

Responsibilities Lead design trade-offs and architecture decisions for low-voltage subsystems supporting MV/LV power conversion, with a focus on safety and reliability. Design and validate hardware for control, sensing, and protection circuits. Develop isolated interface circuits (e.g., signal isolators, isolated DC-DC converters, fiber optics) that ensure safe operation between high-voltage domains and low-voltage controllers. Collaborate with firmware and mechanical teams to ensure clean signal routing, system-level timing alignment, and successful EMI/EMC compliance. Execute DFMEA and component derating reviews for single fault tolerant designs to meet product lifetime requirements. Own full lifecycle development of PCBAs, including specifications, schematics, BOM, prototyping, testing, and release to production. Maintain detailed documentation of requirements and release notes for traceability and compliance. Qualifications Technical degree or equivalent industry experience in electronics engineering. 5+ years of experience designing and integrating low-voltage hardware for high-reliability or high-voltage systems. Proficiency with PCB CAD and simulation tools (preferably Altium Designer, *SPICE and/or PLECS). Proficiency in designing mixed-signal and power interface circuits with strong knowledge of component selection and derating for harsh environments. Hands‑on experience implementing industrial communication protocols (CAN, RS‑485, Modbus, Ethernet). Familiarity with EMI/EMC best practices and debugging techniques at the hardware level. Strong board bring‑up, debugging, and lab testing skills. Excellent written and verbal communications in English. Willingness and ability to travel up to 10% including internationally. Bonus Qualifications Shipped a PCBA in a high-volume product. Exposure to functional safety, HV design standards, or product certification processes. This role requires working on‑site 5 days a week. We do not offer hybrid or remote options. SF Pay Range

$210,000 — $225,000 USD

Pay Disclosure & Benefits Compensation will be determined based on experience, location, and other factors permitted by law. The benefits outlined below apply exclusively to employees located in the United States. Competitive Salary + Incentive Stock Options Medical, vision, and dental benefits for employees and their dependents, effective from the start of hire. Company paid Basic Life, AD&D, short‑term and long‑term disability insurance. 401k retirement savings plan through Empower. Employees receive paid time off (PTO), paid sick days, and paid company holidays. Commuter Benefits. 100% paid maternal leave (12 weeks) and paternal leave (6 weeks). Singapore‑based employees receive benefits in accordance with local government provisions. Equal Employment Opportunity Amperesand is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition or any other characteristic protected by law. Amperesand is also committed to working with and providing reasonable accommodations to individuals with disabilities. Please let your recruiter know if you need an accommodation at any point during the interview process. #J-18808-Ljbffr Amperesand