---
title: 'Staff Hardware Reliability Engineer - Power Electronics at Lunar Energy'
canonical: 'https://feeny.ai/job/staff-hardware-reliability-engineer-power-electronics-lunar-energy-mountain-view-tc0a5qmtadg2'
type: 'job'
last_seen: '2026-11-04'
---

# Staff Hardware Reliability Engineer - Power Electronics at Lunar Energy

- **Company:** Lunar Energy
- **Location:** Mountain View, CA
- **Posted:** 2026-10-21
- **Last confirmed live:** 2026-11-04
- **Apply:** https://job-boards.greenhouse.io/lunarenergy/jobs/6231621004

## Job description

Staff Hardware Reliability Engineer - Power Electronics

We are looking for a hands-on, execution-focused Staff Reliability Engineer to lead product reliability for Lunar Energy’s home energy systems, spanning our power electronics, battery, and solar products.

This role owns system-level reliability from early architecture through fleet deployment. You will set the reliability strategy, define qualification and accelerated life testing approaches, and shape our failure analysis practices so that every product we ship performs for its full design life in customers’ homes. You will work across Test, Mechanical, Electrical, Firmware, Manufacturing, Supply Chain, and Field Service teams, and you will help turn our mission of a cleaner, more resilient energy future into products people can count on for years.

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…

- Own the reliability strategy for our power electronics and battery systems, including the component and system level reliability requirements that guide it.
- Establish targeted and prioritized test plans based on an in-depth understanding of the design, identified design risks, reliability goals, and physics-of-failure methodology to efficiently de-risk new products and various changes/iterations throughout the engineering lifecycle.
- Collaborate with mechanical and electrical engineers during hardware design to provide Design for Reliability (DfR) inputs during new product development.
- Drive Design Failure Modes and Effects Analyses (DFMEA) for various systems to capture design risks and the impact of different failure modes, and implement appropriate mitigation activities.
- Track field reliability performance and identify opportunities for continuous product improvement and reliability growth. Collaborate with the finance team to provide insights into our warranty program.
- Lead root-cause investigations of complex power electronics and PCBA failures.
- Guide team to efficiently get critical pieces of evidence either through FA techniques or hypothesis testing to prove/disprove failure hypotheses.
- Provide expertise on failure physics for in depth understanding of failure mechanism
- Drive containment and countermeasure validation
- Use Weibull and lifetime modeling to project field reliability. Surface and communicate critical reliability risks to serve as a decisive voice for validation in product release readiness reviews.

Desired Skills:

- Degree in Mechanical Engineering, Electrical Engineering, Chemical Engineering, Physics, or equivalent.
- Ability to manage complex reliability decisions in fast paced environments e.g. Balancing reliability risk against cost, schedule, and performance
- Experience with accelerated life testing models and the governing equations, as well as applied reliability statistics (e.g., Weibull analysis) and risk analysis
- Proven track record of leading cross-functional root-cause investigations in a fast-moving hardware company
- Working knowledge of failure analysis techniques such as optical microscopy, SEM, CSAM, X-ray, cross-sectioning, and EDX, including knowing which technique to recommend for a given failure
- Familiarity with PCBA reliability best design practices in conjunction with a strong grasp of failure physics in PCBAs/common power electronics components is a strong plus
- Working knowledge of the theory of operation of common power converter topologies is a plus

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

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 - $220,000 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 Lunar Energy

## Company Overview
- **One-liner**: Lunar Energy builds an ecosystem of all-electric home products, starting with a next-generation home battery and solar system paired with an AI-powered energy management platform.
- **Entity Type**: Private (Series D, 2026)
- **Headquarters**: Mountain View, California, United States
- **Founded**: 2020
- **Founders**: Kunal Girotra

## Core Business
Lunar Energy designs, manufactures, and deploys integrated solar + battery storage systems for homes. Its AI‑driven Gridshare software optimizes energy flows between home batteries, EV chargers, and the grid. The company serves homeowners directly (B2C) and partners with utilities and energy retailers to manage distributed energy resources. Mission: “Power homes around the world with endless clean energy.”

## Products & Services
- **[Lunar System]** – A home solar and battery system that captures, stores, and uses solar energy day and night, including during outages. Hardware product, sold through installers.
- **[Gridshare Software]** – An AI-powered energy management platform that controls distributed energy resources (home batteries, EV chargers) to maximize homeowner savings and support grid stability. SaaS/software product embedded in every system.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed.
- **Key Metric**: Total funding of **$532.0 M** raised across 3+ rounds (latest: Series D of $102 M in February 2026). Estimated annual revenue of **$3.0 M** (LinkedIn estimate).
- **Notable Investors/Partners**: Prelude Ventures and B Capital (co-led Series D); Activate Capital Partners (led Series C); other investors include those in a $300 M venture round (2022). Acquired Moixa Energy, a UK‑based smart battery company.
- **Growth Signals**: Growing headcount 7.8% YoY to 183 employees; operations in 9 countries including the US, UK, Japan, Canada, Spain, UAE, and France; Forbes named Lunar Energy one of America’s Best Startup Employers in 2023.

## Competitive Advantages
- **Deep industry expertise**: Founder Kunal Girotra was formerly head of Tesla Energy; several senior leaders (e.g., Chief Architect Mark Holveck, SVP Chris Wright) have Tesla and cleantech backgrounds.
- **Integrated hardware + software moat**: The Lunar System combines proprietary battery hardware with an intelligent software platform that can manage third‑party DERs, creating a sticky ecosystem.
- **Global reach from inception**: Products already deployed in three continents, with a clear plan to expand through acquisitions (Moixa) and partnerships.

## Strategic Focus
- Scale production and geographic footprint (especially US, UK, Japan).
- Deepen Gridshare capabilities with AI and utility‑grid integration.
- Expand product ecosystem beyond solar+battery (e.g., EV charging, smart home controls).
- Grow commercial channels through regional sales managers and solution architects (as seen in recent job postings).

## Why Work Here
- **Culture**: Described as a team of “builders and doers” with a collaborative and inclusive environment. Emphasis on making a global impact on clean energy transition.
- **Work model**: Headquarters in Mountain View, CA; UK offices in London and Manchester. Hybrid and remote options available for specific roles.
- **Total rewards**: Competitive salary, equity in a growing company, comprehensive benefits (location‑specific), and encouragement of work‑life balance with generous time off.
- **Engineering focus**: Strong investment in software, firmware, systems engineering, and hardware reliability – 16 active openings across Manufacturing, Software, Systems, Firmware, Sales, and more.

## Sources
1. [lunarenergy.com](https://www.lunarenergy.com/about) – About page, team, mission
2. [lunarenergy.com](https://www.lunarenergy.com/careers) – Careers page, culture, benefits
3. [linkedin.com](https://www.linkedin.com/company/lunarenergyinc) – Company details, funding, headcount, revenue
4. [job-boards.greenhouse.io](https://job-boards.greenhouse.io/lunarenergy) – Active job listings

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