Senior Electronics Design Engineer

About the Role:

As a Senior Electronics Design Engineer, you will design and develop the low-voltage and mixed-signal hardware that controls, senses, and protects Solid-State Transformer (SST) subsystems. You'll own boards end-to-end—from schematic through bring-up and release to production—and contribute to architectural decisions. This is a hands-on role for an engineer who wants depth in mixed-signal design for high-reliability power conversion products.

Responsibilities:

• Design low-voltage and mixed-signal circuits for SST products, balancing performance, reliability, safety, cost, and manufacturability.
• Select microcontrollers and key ICs; engage with silicon vendors to evaluate fit and review errata.
• Design and validate control, sensing, and protection circuitry, including analog measurement chains, digital I/O, and fault detection.
• Design isolated interface circuits like signal isolators, isolated DC-DC, and fiber optics between different voltage domains.
• Build redundancy and fault tolerance into board designs to meet single-fault-tolerant and product-lifetime requirements; contribute to DFMEA and derating reviews.
• Implement industrial and high-bandwidth communication interfaces, such as Gigabit Ethernet, CAN, and Modbus, with attention to signal integrity.
• Partner with a dedicated PCB layout engineer. Define stackup, impedance, isolation, and routing constraints, review iterations, and execute layout directly when needed.
• Own full lifecycle development of PCBAs: specifications, schematics, BOM, prototyping, bring-up, EMI/EMC compliance, and release to production.
• Collaborate with firmware engineers on interface and timing definition, and with mechanical engineers on connector placement, thermal, and enclosure integration.
• Maintain documentation of requirements, design decisions, and release notes for traceability and compliance.

Qualifications:

• BS or MS in Electrical Engineering, Computer Engineering, or equivalent industry experience.
• 5+ years designing low-voltage and mixed-signal hardware, with at least some experience in high-reliability or high-voltage systems.
• Experience taking boards from schematic through bring-up and production, including MCU selection and protection circuitry.
• Solid analog and mixed-signal design skills, with knowledge of component selection and derating for harsh environments.
• Experience designing isolated interface circuits between voltage domains.
• Hands-on experience with communication interfaces such as Ethernet, CAN/CAN-FD, or Modbus.
• Proficiency with PCB CAD and simulation tools, preferably Altium Designer, SPICE, and/or PLECS.
• Hands-on PCB layout experience sufficient to specify constraints, review layout, and execute layout directly when needed.
• Strong board bring-up, debugging, and lab testing skills, with working knowledge of EMI/EMC best practices.
• Excellent written and verbal communication in English.
• Willingness to travel up to 10%, including internationally.

Bonus Qualifications:

• Shipped a PCBA in a high-volume product.
• Exposure to functional safety (IEC 61508, ISO 13849) or HV design and certification standards (IEC 61800, UL 508C, IEC 62477).
• Experience with high-reliability design for industrial, grid, or similar harsh-environment applications.

Pay Disclosure & Benefits:

• 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 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.