Power Electronics Engineer

About magniX: Based in the beautiful Pacific Northwest, magniX builds solutions for the electric age, applying its aerospace-grade batteries, power electronics, power distribution, electric engines, and software to mission-critical applications across data centers, energy storage, defense, mobility, space, and aerospace. Built on an 800-volt architecture, magniX technology delivers industry-leading energy density, cycle life, and safety, and magniX electric engines have powered more than 200 flights across six different airframes, where the company remains the industry leader. As magniX extends its aerospace-grade standards into new markets, we are building a commercial organization to match, and are now ready to take our technology and products to market. Be part of a passionate team that is ushering in the electric age.

About the role: magniX is building a small, cross-functional team to develop a new 800V battery-based power supply and backup system for datacenter compute racks, drawing on the company's deep bench of electric propulsion battery and power electronics expertise. The Power Electronics Engineer will lead the design of a bidirectional power converter and charger, operating at the core of the system's power path between the 800V battery pack, the grid or facility AC input, and the datacenter rack DC bus.

Primary Responsibilities:

• Lead the design of a new bidirectional AC/DC and DC/DC power converter suitable for stationary, continuous-duty datacenter operation.
• Define power stage architecture, semiconductor selection (SiC/GaN), and switching strategy for 800V-class operation at datacenter power levels.
• Develop control loops for battery charging, rack-bus voltage regulation, and grid-interactive or UPS-style operating modes.
• Own the electrical interface between the converter, the battery management system, and rack-level power distribution.
• Support compliance activities against relevant standards (e.g., UL 1741, IEEE 1547, UL 9540) in partnership with the Systems Engineer.
• Serve as the technical lead for the team's power electronics workstream, including design reviews and supplier/component sourcing decisions.

Required Qualifications:

• Bachelor's in electrical engineering or related field
• 7+ years in power electronics design.
• Demonstrated experience taking a high-voltage (600V+) power converter from concept through production, including topology selection and control implementation.
• Experience with bidirectional converter topologies (charger/inverter combined function).
• Familiarity with SiC or GaN power semiconductor devices and associated thermal/EMI design considerations.

Preferred Qualifications:

• Experience in EV traction inverter design (particularly 800V platforms) or grid-tied/UPS inverter design for stationary storage.
• Exposure to datacenter power standards or utility interconnection requirements.
• Experience standing up a new power electronics product line from a clean-sheet or early-concept stage.

Location: Applicants must be willing and able to commute to magniX's location in Everett, Washington.

Compensation & Benefits

• 100% company-paid premiums for medical, dental, and vision insurance (for employees & dependents).
• 4 weeks paid vacation + 1-week annual end-of-year shutdown, sick time, and 11 paid holidays.
• 401K retirement plan with industry leading 9.5% company contribution.
• Company paid Life insurance, AD&D, Short-Term and Long-Term disability insurance
• Catered lunches and quarterly company fun-day events!

Salary Range: $120k-$165k

E-Verify: magniX utilizes E-Verify for employment eligibility verification

Pre-employment Screenings: Employment with magniX is contingent upon satisfactory completion of pre-employment requirements including a background screen.

Export Control Compliance: This position may require access to export-controlled data. To meet export control compliance requirements, candidates must be a "U.S. Person" (U.S. citizens, lawful permanent residents, refugees, or asylees), or an appropriate export authorization by the U.S. Government may be required prior to such access. Employment, and the continuity of employment of non-U.S. persons, is contingent upon the company's ability to secure and maintain the necessary export control authorization.

EHS/Environmental Requirements: This job operates in a manufacturing and testing environment. While performing the duties of this job, the employee routinely is required to use hands to keyboard, communicate, listen to, and interpret instructions and remain stationary for extended periods of time. This would require the ability to move around the facility and occasionally move/lift items weighing up to 25 lbs. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job. Applicants are invited to apply for a reasonable accommodation to perform the essential duties of the job.

Required PPE (Personal Protective Equipment): Required PPE provided by magniX based on the employee's position and exposure. Below are typical PPE used on the manufacturing and testing floor:

• Ear Plugs - Earmuffs
• Safety shoes
• Safety Glasses - Safety Goggles

Diversity and Inclusion: magniX is an equal opportunity employer. We value and embrace diversity. We do not discriminate on the basis of race, color, national origin, religion, gender, gender identity or expression, sexual orientation, marital status, age, or disability status.