Senior Staff Reliability Engineer - Power Electronics

Lunar Energy; Mountain View (CA); On-site; USD 165,000 - 192,500; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Tax-deferred 401(k) plan

Paid parental leave

Job summary

Lunar Energy in Mountain View, CA is seeking a Senior Staff Reliability Engineer to ensure product reliability for innovative home energy products.

The ideal candidate will collaborate on hardware design and provide reliability test plans, focusing on power electronics and battery systems. Strong expertise in power electronics, reliability statistics, and failure analysis techniques is essential.

Join us in our mission to create sustainable energy solutions!

Qualifications

• Proven track record of solving complex power electronics reliability failures.
• Working knowledge in theory of operation of common power converter topologies.
• Experience with accelerated life testing models and governing equations.

Responsibilities

• Collaborate on hardware design to establish reliability targets.
• Provide Design for Reliability inputs during new product development.
• Drive Design Failure Modes and Effects Analyses to capture performance risks.

Skills

Power electronics reliability

Failure analysis techniques

Reliability statistics

Education

Degree in Mechanical, Electrical, or Chemical Engineering, or Physics

Tools

Optical microscopy

SEM

X-ray

Job description

Senior Staff Reliability Engineer - Power Electronics

Mountain View, CA

Senior Staff Reliability Engineer - Power Electronics

Reliability Engineers at Lunar Energy will be responsible for ensuring product reliability throughout the entire lifecycle of our revolutionary home energy products. This includes providing input during the design phases, developing test plans, and assessing on‑going field performance. We are looking for people who are passionate about a more sustainable future and want to make that vision a reality. An ideal candidate is someone who is excited to collaborate with a diverse and dedicated team.

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…

• Collaborate with mechanical and electrical engineers during hardware design to establish and refine component and system level reliability targets for our power electronics and battery systems.
• Provide Design for Reliability (DfR) inputs during new product development.
• Drive Design Failure Modes and Effects Analyses (DFMEA) for various systems to capture performance risks and implement appropriate mitigation activities.
• Develop ALT Reliability Test Plans for components and subsystems using identified risks, reliability targets, and physics of failures methodology to demonstrate the required product reliability throughout its design life.
• Track field reliability performance for various metrics like part replacements, customer complaints, fault codes. Identify opportunities for continuous product improvement and reliability growth. Collaborate with the finance team to provide insights into our warranty program.
• Drive failure analysis of reliability test and/or field returns to determine root cause and drive product improvement through containment and corrective actions.

Desired Skills:

• Degree in Mechanical Engineering, Electrical Engineering, Chemical Engineering, Physics or Equivalent.
• Proven track record of solving complex power electronics reliability failures.
• Working knowledge in theory of operation of common power converter topologies (inverter, buck boost converter…etc).
• Deep understanding of physics of failure and common failure mechanisms for PCBAs and power electronics components (MOSFETs, capacitors, inductors…etc).
• Working knowledge of failure analysis techniques such as optical microscopy, SEM, CSAM, X-ray, cross‑sectioning and EDX — know which technique to recommend given a specific failure.
• Experience with accelerated life testing models and the governing equations, specifically for PCBAs, battery storage, and relevant mechanical structures.
• Understanding of reliability statistics.

Additional benefits include:

• Medical, dental, and vision insurance for employees and dependents.
• 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.

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: $165,000 - $192,500 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.