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Lunar Energy

Firmware Lead & Manager

Join Lunar Energy in Mountain View, California as a Firmware Lead & Manager. Lead firmware development for clean energy products, manage engineering teams, and optimize manufacturing processes. Enjoy benefits like medical insurance, flexible PTO, and EV charging subsidies.
Lunar Energy
Lunar Energy
Mountain View, California, United States On-site Full time USD 150k–210k yearly UTC-07:00

Lunar Energy

Company Overview

Lunar Energy

Mountain View, CA, United States

2020

Approximately 250 employees (source: lunarenergy.com).

What They Do

Lunar Energy is a pioneering renewable energy startup focused on electrifying homes through innovative clean energy products and virtual power plants. The company, founded by Kunal Girotra, a former Tesla Energy executive, aims to provide scalable solutions that allow homeowners to generate, store, and manage electricity efficiently. Their flagship product is a next-generation home battery system, which is part of a modular hardware ecosystem designed to facilitate the transition to 100% clean energy by replacing fossil fuel appliances with solar-compatible technologies such as heat pumps and induction cooking (source: cbinsights.com). Additionally, Lunar Energy integrates its hardware with Gridshare software, acquired from Moixa, to enable smart energy controls and aggregation into virtual power plants (VPPs) that connect thousands of home batteries for grid balancing (source: cleantechnica.com).

Projects & Track Record

While specific completed projects are limited as Lunar Energy focuses on product development, the company has made significant strides in integrating proven technologies from its acquisition of Moixa, which has managed extensive home battery fleets for smart charging and VPPs (source: investors.sunrun.com). The first home battery system was slated for market launch in late 2022, and ongoing efforts are centered on scaling manufacturing and partnerships with Sunrun for nationwide residential rollouts. Lunar Energy's geographical operations include its headquarters in Mountain View, California, and a software hub in London, UK, targeting U.S. residential customers first while eyeing global VPP expansion (source: cbinsights.com). Key clients include Sunrun, which serves as a lead investor and distribution partner, further solidifying Lunar's position in the renewable energy market.

Recent Developments

In the past two years, Lunar Energy has not disclosed any new funding rounds or major contracts following its emergence from stealth in 2022. The company continues to focus on product scaling and commercialization of its VPP solutions, with the 2022 $300 million funding raise and the acquisition of Moixa marking significant milestones in its early development (source: equityzen.com). Although press mentions in 2025 have referenced unrelated entities, Lunar Energy remains committed to its mission of home electrification and expanding its market presence through strategic partnerships and technological advancements (source: investors.sunrun.com).

Working There

Lunar Energy offers a dynamic work environment primarily focused on engineering roles, with approximately 250 employees engaged in hardware, firmware, software, product development, and R&D. The company actively recruits talent for its Mountain View headquarters and London office, emphasizing a mission-driven culture that attracts savvy entrepreneurs and passionate experts (source: lunarenergy.com). While specific benefits are not publicly documented, the company invites applications for various roles, highlighting its commitment to building a high-impact team dedicated to addressing climate challenges through home electrification (source: lunarenergy.com).


Last updated on Feb 23, 2026 | Report an issue

Lunar is seeking an experienced and driven Firmware Lead & Manager to spearhead the development and delivery of critical firmware that powers our cutting-edge products. In this role, you will oversee the full firmware and software development lifecycle, playing a pivotal role in enhancing the functionality, adaptability, and optimization of our designs.

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 collaboratively with other disciplines 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
  • Test ideas and designs: back-of-the-envelope calculations, building simulations, and designing validation tests
  • Design firmware & software that runs in our home energy product components: Power electronics controls, system-level behaviors, and optimization, mobile app design and interfaces, system diagnostics and updates, RF and powerline communication protocols, control algorithms, and installation automation features.
  • Optimize manufacturing by designing automation support functionality in our components whose design reflects the part they play in the processes that create them and test them, and by supporting our features within our manufacturing partners
  • Drive team by hiring, mentoring and managing highly skilled engineers.
  • Manage schedules and resources working with cross functional internal customers
  • Lead design and test methods for new features to enhance product functionality.

Desired Skills

  • Degree in a computer-engineering related or adjacent field, or demonstrated commensurate ability.
  • 7+ or more years of experience delivering firmware for new products as part of a team.
  • Proficiency in C, and working familiarity with Cmake,
  • Expert in firmware fundamentals, in architecture & design, Algorithm development, Code modularity and maintainability, CPU architecture and compilers etc.
  • Ability to explain and communicate about technical concepts with engineers in a variety of fields.
  • Proven experience in the total lifecycle of products (power electronics). From prototype/initial bringup to phased development and testing, manufacturing, fleet deployment.
  • Strong understanding of design for power electronics or battery systems is highly desirable.
  • Understands company objectives to create and lead the engineering execution.
  • Quickly learns the technology and becomes the goto person for that area of product expertise.
  • Leads team on technical challenges and provides guidance and support in execution.
  • Works with team members and helps them grow in their careers.
  • Experience with functional safety firmware and system designs (DFMEA, HARA, tools and methods, compliance standards etc)
  • Proven experience in driving testing strategy from the design phase to release testing of features and regression testing.

Benefits

  • 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 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: $150,000 - $210,000 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.

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About the role

April 3, 2026

Full time

Company

April 3, 2026

On-site

USD 150k–210k yearly

Energy Storage , EV Charging Infrastructure

Lunar Energy

lunarenergy.com

  •  Mountain View, California, United States

7+ years

UTC-07:00