Sr. Staff Power Electronics Architect

Amperesand • San Francisco, CA

6d • Onsite

About The Position

Amperesand is reinventing how the world powers its most critical systems.
We are facing a once-in-a-generation opportunity for infrastructure disruption. Electricity demand is skyrocketing, driven by AI factories, electric vehicles, and modern industrial growth. Energy supply is shifting to incorporate a more diverse mix of resources – including solar, gas, and batteries – at a massive scale.
And yet the power infrastructure behind our latest mega-projects hasn’t meaningfully changed in nearly 100 years. Supply chains for today’s infrastructure equipment can’t match the pace and sophistication of critical energy projects. Amperesand is building hardware and software that rewrites this broken power infrastructure playbook to support a new era of energy abundance.
We’ve built a new class of intelligent, software-defined power infrastructure products leveraging a decade of advanced medium voltage Solid State Transformer research that’s now ready for commercial deployment.
Our products and solutions go far beyond the capabilities of traditional electrical equipment. We make power systems that are faster to deploy, dramatically smaller and more efficient, and capable of supporting modern, dynamic energy needs for tomorrow’s most demanding energy consumers.
Scalable in-house advanced manufacturing capability is our foundation for meeting timeline and quality expectation to serve infrastructure customers around the world.
Amperesand is led by breakthrough energy hardware development veterans and funded by top tier investors who share our vision of building a category-defining energy technology company.
With hubs in San Francisco, Reno, and Singapore, our global team is laser focused on building foundational technology to solve the most pressing problems in power infrastructure at scale.
Join us in building the power foundation of the future!

Requirements

• Technical degree or equivalent experience in power electronics design and architecture.
• 8+ years of experience in power conversion design, including at least 2 years of technical leadership mentoring 3+ engineers.
• Proven track record of delivering industry-leading power conversion solutions, including at least one shipped high-volume PCBA.
• Demonstrated expertise in simulation-driven design and figure-of-merit evaluation across topology, controls, devices, and magnetics.
• Strong knowledge of EMC, high-voltage compliance, and functional safety.
• Extensive experience collaborating with Sales, Design Engineering, Supply Chain, Applications, and Compliance teams to deliver harmonized customer solutions.
• Evidence of delivering both strategic and tactical power electronics solutions.
• Entrepreneurial mindset with a bias toward informed action and the ability to lead new initiatives with limited resources.
• Excellent written and verbal communication skills in English.
• Willingness and ability to travel up to 10%, including internationally

Responsibilities

• Lead next-generation power conversion system design for Solid State Transformer systems, including topology optimization, device selection, magnetics, and controls.
• Own design execution and timelines while leveraging and mentoring a team of electrical engineers.
• Develop frameworks for work breakdown, requirements decomposition, and design acceptance criteria.
• Drive best-in-class solutions that balance efficiency, cost, safety, reliability, and customer use-case needs.
• Lead simulation and optimization of power conversion approaches, ranking alternatives based on customer impact and key figures of merit.
• Collaborate with mechanical and electrical teams to advance power electronics packaging solutions.
• Own EMC and compliance considerations by integrating them into architecture, requirements, and risk management processes.
• Lead advanced controls development to unlock optimized performance for our products.
• Define and track power electronics technical requirements throughout program lifecycles.
• Lead complex root-cause investigations across hardware, firmware, sensing, and protection domains.

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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed