Power Electronics Lead

American Supercritical • Denver, CO

16h

About The Position

American Supercritical is developing supercritical CO2 turbomachinery to improve power-plant efficiency and support electricity generation for data centers and other applications. The Power Electronics Lead owns the path from generator terminals through power conversion to the customer electrical interface. The role defines the conversion architecture, shapes the generator interface with electric-machine and controls teams, leads internal and vendor design programs, and validates the system at power. The expected approach is a high-speed generator with active rectification into a DC architecture, though the role is expected to evaluate and select the right implementation.

This position works across electric machines, converter hardware, controls, protection, thermal management, and customer integration. It offers broad ownership of real hardware at an early-stage company.

Requirements

• Bachelor’s degree in Electrical Engineering or a related field, or equivalent practical experience.
• At least 5 years developing medium- or high-power power electronics that progressed from design into tested hardware.
• Strong fundamentals in converter topologies, semiconductor switching, gate drives, magnetics, DC-link design, sensing, protection, thermal management, and power quality.
• Experience with active rectifiers, inverters, motor drives, grid converters, or comparable multi-kilowatt to megawatt power-conversion systems.
• Experience commissioning power electronics on real hardware and debugging switching, controls, thermal, EMI/EMC, or protection issues.
• Strong system-level judgment across converter hardware, control behavior, electric-machine interfaces, supplier execution, and customer requirements.

Nice To Haves

• Master’s degree or PhD in Electrical Engineering or a related field.
• Experience with high-speed generators, motor drives, starter-generators, or turboelectric systems.
• Experience with SiC or other wide-bandgap power semiconductors.
• Experience with data-center electrical systems, UPS architecture, DC distribution, or customer-side power integration.

Responsibilities

• Own power-electronics architecture, requirements, interfaces, supplier execution, and validation for the generator output path.
• Define active-rectification and DC-bus architecture with electric-machine, controls, and system engineers.
• Make system-level tradeoffs among generator voltage and frequency, semiconductor topology, switching strategy, efficiency, thermal management, harmonics, protection, packaging, and cost.
• Specify semiconductors, power modules, magnetics, capacitors, bus structures, sensing, protection hardware, cooling, and other critical converter components.
• Own electrical interface requirements with customers and external vendors.
• Lead statements of work, design reviews, acceptance criteria, qualification, and technical issue resolution.
• Develop electrical and loss models.
• Lead converter bring-up and high-power validation.
• Troubleshoot controls, EMI/EMC, thermal, switching, protection, and machine-interface issues during commissioning.

Benefits

• Meaningful equity ownership in an early-stage company.
• 100% of employee medical premiums and 80% of dependent medical premiums covered.
• 100% employer-paid dental and vision coverage.
• Employer-paid basic life insurance and long-term disability coverage.
• 401(k) retirement plan.
• Unlimited PTO that the company expects employees to take.
• 8 weeks of paid parental leave.
• Significant ownership of real hardware.
• A view of the Rocky Mountains from the office.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior