This job is no longer available
Lunar Energy
Power Electronics Engineer
9 months ago
About the Job
Power Electronics Engineer
Lunar Energy was founded to transition homes to 100% clean energy—making our electricity greener, our air cleaner and our energy more safe, secure and reliable for all. We’re a fast-growing, global company building the world’s best clean energy products to electrify all homes and connect communities to form clean, resilient virtual power plants.
On a given day at Lunar, you’ll likely…
Create the best possible products by contributing to product level features, design, and vision by leveraging your experience and creativity
Detailed design of power electronic systems from 10W – 10kW, DC/DC converters, offline isolated power supplies, and inverters including the selection of topology, semiconductors, magnetics design, schematic design and layout, EMC and design of various safety aspects
Collaborate to create efficient verification and validation test plans for the individual components as well as the complete system
Bring up and testing of systems to validate functionality, optimize performance, and evaluate critical characteristics
Work across functions such as mechanical, thermal, reliability, and firmware engineering to optimize the product
Start-to-finish ownership of the power conversion system from specification through design, prototype, validation and manufacturing
Desired Skills:
Minimum B.S. in Electrical Engineering with 5 years’ experience in power electronics design. M.S. or Ph.D. degree with power electronics focus is preferred. Job grade can be discussed based on qualification and experience
Detailed understanding of active and passive component losses in power conversion and the various means to reduce/mitigate those losses
Experience of designing high efficiency and high density power converters with wide bandgap devices
Familiarity with various topologies (two-level, multilevel, soft switching, etc.) and ability to analyze, select, and design topologies best suited for a given application
Knowledge of sensor design to measure converter parameters in real time in a noisy environment
Familiarity with magnetics design and specification, applications of various core materials for both power and filtering, knowledge of winding structure and optimization, and insulation strategies
EMC design and optimization. Understanding of EMC theory applied to both PCB layout as well as filter designs
Ability to design schematics and conduct layout design or review as it applies to power conversion
Strong lab skills with working knowledge of the tools and techniques for power conversion test and analysis (e.g., use of oscilloscopes, impedance analyzers, sources, and loads in an environment with both high voltages and currents, and high common-mode and differential-mode noise)
Benefits:
We’re dedicated to creating a remarkable employee experience. At Lunar, competitive base pay is one part of our total compensation package. Lunar employees also have the opportunity to become Lunar shareholders by getting equity in a fast-growing company and participating in our employee stock program.
Additional benefits include:
Medical, dental, and vision insurance for employees and dependents
Flexible Paid Time Off plus 10 paid holidays
Tax deferred 401(k) plan
Paid parental leave for all full time employees including 12 weeks paid parental leave for the birthing mother and 6 weeks paid parental leave for the non-birthing parent
Subsidized EV charging and pre-tax commuter benefits
Cell Phone stipend
Our DE&I Philosophy: Lunar Energy is an equal opportunity employer. We are committed to attracting, developing and retaining diverse talent by supporting an inclusive workplace. Lunar recruits, hires, trains, promotes, compensates, and administers all personnel actions without regard to race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status or any other status protected by applicable law.
Our Compensation Philosophy: Our goal is to ensure that all Lunar Energy employees are fairly compensated. Please note that the salary range information that follows is a good faith estimate for this position provided pursuant to the Pay Transparency for Pay Equity Act for California applicants. The salary range estimate for this position depending on level of experience is: $125,000 - $160,000 USD.
The actual offer, reflecting the total compensation package & benefits, will be at the company’s sole discretion, and determined by factors including but not limited to years of experience, job level, geographic location, and other relevant business considerations. The company also reserves the right to amend or modify this job description, employee perks, and benefits at any time.
About the Company

Lunar Energy
Lunar exists to power homes around the world with endless clean energy. We believe that, provided with the right tools, a clean energy future is within reach. And to give people those tools, we’re building an ecosystem of all-electric products starting with a next-generation home battery system. Our Lunar System is a solar and battery product brilliantly designed to let you capture, store and use every ray of sunshine — day, night, and even during an outage. Every Lunar System comes with our AI-powered Gridshare software built in. This leading energy management platform controls any type of distributed energy resources (such as home batteries and EV chargers) to help homeowners maximize the value of their energy and optimize the wider power system. Recognizing our commitment and accomplishments, Forbes has named us one of America's Best Startup Employers for 2023. Want to help us shape the future of clean energy? We’re looking for passionate and talented candidates to join our team.