Senior Power Electronics Engineer (Fusion Energy)

Location: On-site in Devens, Massachusetts, United States. The role requires occasional travel, nights, weekends, or on-call work and work in a facility with industrial hazards including high voltage, high current, strong magnets, lead, pressure systems, and cryogenics.

Salary: $134,000–$205,000 per year, plus equity and benefits.

Company

hirify.global Systems develops commercially viable fusion power plants and the energy infrastructure needed to support fusion energy.

What you will do

• Architect and design high-power (>10MVA) medium-voltage power supplies for ARC tokamaks using Si and SiC semiconductor devices.
• Collaborate with semiconductor manufacturers to develop and qualify devices for fusion applications.
• Model and simulate power electronic circuits and components to evaluate converter performance, efficiency, and stability.
• Build, test, and validate prototype 4Q power modules, including H-bridges, DC links, passives, and thermal management systems.
• Convert qualified prototypes into productized ARC power-supply solutions and develop component requirements, specifications, and qualification plans.
• Support power distribution, energy storage, RF, and other electrical systems, while documenting designs, simulations, and test results.

Requirements

• 8+ years of related power-electronics systems experience with a bachelor’s degree, or 6+ years with a master’s degree.
• Hands-on product development experience with power-electronic converter systems.
• Knowledge of inverter circuit topologies and their benefits and limitations.
• Experience with modeling and simulation tools such as PLECS, PSPICE, or MATLAB.
• Extensive experience with semiconductor devices such as IGBTs and MOSFETs, and magnetic components such as transformers and inductors.
• Understanding of gate-drive circuits, device protection, packaging design, and thermal management.
• Experience with high-power electrical equipment above 10MVA and laboratory testing using oscilloscopes and other measurement equipment.
• Strong written and verbal communication skills, including the ability to conduct design reviews and present results to technical and non-technical audiences.
• Ability to lift up to 50 lb and perform extended standing, typing, or sitting.

Nice to have

• Master’s degree in electrical engineering focused on power electronics.
• Experience applying IEC, UL, CSA, NEC, or similar compliance standards.
• Experience with problem solving, root-cause analysis, and field-containment actions.
• Hands-on prototype building, testing, and documentation.
• Intelligent gate-drive circuit design experience.

Culture & Benefits

• Fast-paced environment focused on integrity, execution, impact, self-critique, and diverse perspectives.
• Equity and competitive compensation.
• 13 company-wide holidays, flexible vacation days, and 10 sick days.
• Generous parental leave and health, dental, and vision insurance.
• 401(k) with employer matching, professional growth opportunities, and team-building activities.
• Occasional travel, nights, weekends, and on-call work are required.

Hiring process

• Employment is contingent on compliance with U.S. Export Control Laws concerning controlled or protected technologies and information.
• Applicants should submit an application demonstrating the required power-electronics experience and qualifications.