---
title: 'Staff ATE Mechanical Engineer (Contractor) at Lunar Energy'
canonical: 'https://feeny.ai/job/staff-ate-mechanical-engineer-contractor-lunar-energy-mountain-view-0tkkcsdb15pt'
type: 'job'
last_seen: '2026-10-21'
---

# Staff ATE Mechanical Engineer (Contractor) at Lunar Energy

- **Company:** Lunar Energy
- **Location:** Mountain View, CA
- **Posted:** 2026-10-01
- **Last confirmed live:** 2026-10-21
- **Apply:** https://job-boards.greenhouse.io/lunarenergy/jobs/6215000004

## Job description

Staff ATE Mechanical Engineer (Contractor)

As a Staff ATE Mechanical Engineer at Lunar, you will be responsible for the full product development lifecycle of mechanical systems within our revolutionary home energy products. 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 excited and ready to collaborate closely with a small, dedicated team. Engineers at Lunar are hands-on and involved in a wide range of facets of the product, from applying fundamental physical principles in design to working with high-volume production suppliers.

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…

- Work back and forth with collaborators across the company to continuously refine and improve our understanding of how our products can create the greatest impact, get to market quickly, and operate reliably for our customers
- Brainstorm and evaluate new solutions, weigh pros and cons, and narrow down options
- Efficiently test  ideas and designs: anything from back-of-the-envelope calculations to physical tests and multi-physics simulations
- Design high-performance, reliable, easy-to-manufacture parts and assemblies, employing a variety of high-volume manufacturing processes
- Create and review drawings and other part specifications
- Manage bills of materials, cost and mass roll-ups, vendors and engineering releases
- Define manufacturing processes and inspection methods
- Collaborate directly with part manufacturers to support prototypes and production

Desired Skills/Experience

- Mechanical Design
- Extensive experience in 3D Modeling software (e.g. Onshape, NX, Solidworks)
- Knowledge of how to make a PCBA Bed of Nails fixture.
- Detailed knowledge of 2D Drawing creation and GD&T
- Ability to analyze designs using Tolerance Analysis/Stackup, Statics/Load Path Analysis, Finite Element Analysis, Root Cause Analysis and Design Failure Modes and Effect Analysis
- Familiarity with electronic test equipment and basic electromechanical troubleshooting
- Experience with test fixtures, jigs, and various mechanical components for high cycle count.
- Experience with fine pitch assemblies and construction.
- Should be able to conduct strain gauge measurements and understand stress on PCBAs and incorporate proper design to avoid it.
- Experience with PCBA management such as Mechanical Control Outline generation
- Working knowledge of pneumatic cylinders and control methods
- Working knowledge of Thermal Management techniques
- Prototyping skills using  3D printing, machining, sheet metal bending, laser cutting, milling and general machine shop tools
- Manage suppliers for all the parts which are required for our station construction.
- Manufacturing Support
- Experience communicating with component suppliers including  Design for Manufacturing report review, First Article Inspection, and Part Production Approval Process
- Ability to generate Work Instructions for electromechanical assemblies
- Knowledge of Process Failure Modes and Effects Analysis
- Create preventive maintenance documentation.
- Extensive experience with Onsite Build Support at domestic and international contract manufacturing sites . Approximate 10-20% travel as and when required.
- Communication
- Ability to generate detailed design documentation
- Drive a project from start to deployment involving other cross functional teams, vendors, technicians etc.
- Ability to collaborate with other engineers (electrical engineers, automated test engineers, etc..)
- Skilled at clear verbal and written communication including concise slide deck creation
- Ability to give kind and direct feedback and receive feedback with an open mind

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 hourly 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 hourly range estimate for this position depending on level of experience is $72-$85 USD

The actual offer, reflecting the total compensation package 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

## Other roles at Lunar Energy

- [Digital Marketing Specialist - 12 Month FTC](https://feeny.ai/job/digital-marketing-specialist-12-month-ftc-lunar-energy-united-kingdom-w8edqa20v5ja) — United Kingdom
- [NPI Technician (3 month contract)](https://feeny.ai/job/npi-technician-3-month-contract-lunar-energy-mountain-view-4v2az6cw5zza) — Mountain View, CA
- [Part-time Buyer (Contractor)](https://feeny.ai/job/part-time-buyer-contractor-lunar-energy-mountain-view-trhrkckh0bgb) — Mountain View, CA
- [Senior Electrical Engineer - ATE (Contractor)](https://feeny.ai/job/senior-electrical-engineer-ate-contractor-lunar-energy-mountain-view-gmzc0w0qns1s) — Mountain View, CA
- [Senior Electrical Engineer - ATE](https://feeny.ai/job/senior-electrical-engineer-ate-lunar-energy-mountain-view-skchg0jdwskw) — Mountain View, CA
- [Staff ATE Mechanical Engineer](https://feeny.ai/job/staff-ate-mechanical-engineer-lunar-energy-mountain-view-ann6w74tfpy0) — Mountain View, CA
- [Material Planning Lead](https://feeny.ai/job/material-planning-lead-lunar-energy-mountain-view-d0hjn4qkfzch) — Mountain View, CA
- [Senior ATE Mechanical Engineer](https://feeny.ai/job/senior-ate-mechanical-engineer-lunar-energy-mountain-view-5h51js61v2wp) — Mountain View, CA
- [Senior ATE Mechanical Engineer (Contractor)](https://feeny.ai/job/senior-ate-mechanical-engineer-contractor-lunar-energy-mountain-view-sfzed25wm2ax) — Mountain View, CA
- [Electrical Engineer - ATE (Contractor)](https://feeny.ai/job/electrical-engineer-ate-contractor-lunar-energy-mountain-view-jd9yasga3hrz) — Mountain View, CA