Power Electronics Integration and Validation Engineer

Company Overview 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! Role Summary: At Amperesand, you own validation of power electronics, thermal systems, and firmware. You will build test systems, develop strategies, and ensure SST hardware and firmware work flawlessly. Responsibilities: Design, develop, and maintain test systems for high-voltage power electronics. Validate electrical, thermal, and performance characteristics of our products across prototype, pre-production, and production stages. Conduct comprehensive regression testing to ensure that new iterations of the product meet the same standards of performance and reliability as previous versions. Define a manufacturing test specification for volume production. Innovate test system design to meet accuracy, cycle time, cost, and other performance factors. Collaborate closely with hardware design and firmware teams to understand the product and its functionalities. Investigate root causes of failures and drive product improvements. Participate hands-on during test hardware bring-up, system debugging, and help with software optimization. Incorporate design techniques to achieve ease of validation and maintenance. Challenge ideas and decisions with reasoning from first principles. Travel to different facilities worldwide to collaborate with teams and deploy our solutions. Qualifications : BS or MS in Electrical or Computer Engineering. 1+ years of hands-on experience in test engineering, preferably in power electronics. Strong understanding of power electronics principles, including high-voltage, high-current systems, and power conversion technologies. Solid experience with PCBA schematics and debugging hardware components. Familiarity with using oscilloscopes, multimeters, power analyzers, and other test equipment. Experience using system-level languages (such as Golang, Rust, C, C++, etc.) to automate systems. Be engaged, proactive, and positive when taking on challenging tasks, owning assignments, and taking accountability for personal and overall team success. Please note : This role requires working on-site 5 days a week. We do not offer hybrid or remote options. Compensation: $130,00