Staff Frontend Designer
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 2026-02-23 | Report an issue
Lunar Gridshare is transforming how we use and manage energy in the home and on the grid. We manage solar, home energy storage systems, electric vehicles, and other energy-intensive flows in the home, optimising value and efficiency for end users and energy companies to reduce costs and carbon footprint.
We are looking for a Staff Frontend Designer to join our small, focused and collaborative team of talented developers. Your work will focus on the Typescript+React-based web front-end to our platform, and its corresponding UI/UX designs.
Your responsibilities would include
- Taking initiative to ensure delivery of high stakes and/or time sensitive deliverables
- Working and coordinating across multiple teams to ensure delivery, raise standards and ensure consistency
- Ensuring the quality and reliability of the Lunar Energy component library both at the software and design level
- Contributing to the continual improvement of our development best practices
You will be supported to work and grow your knowledge on multiple parts of the stack according to your interests and abilities. Our team has a strong tradition of using functional programming and type systems to build pragmatic and flexible systems to solve business problems.
Your key skills & experience
- Expert level in Typescript, React and front-end development (HTML/CSS)
- Expert level in UI/UX design, and tools such as Figma, Adobe Suite, and Sketch
- Strong visual portfolio showcasing UI/UX design, data visualisations, and motion design.
- Experience in developing component libraries, including complex, high-interaction components such as charts, tables, date pickers, and other advanced UI patterns.
- Experience working in a functional programming paradigm or openness to doing so
- Working experience with Unix-like operating systems
- You love working in a smaller team where you can see the huge impact of your work
- You are autonomous and enjoy managing your workload and deadlines
Optional/useful
- Experience mentoring other developers and providing leadership on technical decisions
- Experience with AWS, particularly serverless architecture
- Ability to work independently, using your assessment of the technical landscape to work out where you will be most effective
- Ability to engage with multiple technical stakeholders and teams, to find common needs and themes
Joining us gives you
- A competitive salary and stock options package
- 25 days annual leave a year + public holidays
- Private Medical Insurance via BUPA (medical history disregarded)
- A wellbeing and lifestyle benefits plan through Medicash
- 5% employer contributions pension matching
- A budget for work-related training of ??1,000 per financial year and an allowance of 4 training days
- Cycle To Work scheme and Workplace Nursery benefit
- Access to Spill - Mental Health Support platform
- Enhanced Maternity + Paternity Pay
- Regular socials and activities, online and in-person
- Flexible start and finish times, fully remote working or hybrid depending on preferences
Duration: Full-Time
Location: Fully remote, but you are welcome any time at our office in Spitalfields, London (UK), as often as you like.
We are proud to be an equal opportunities employer and welcome applications from all suitably qualified persons regardless of race, sex, ethnicity, disability, religion/belief, sexual orientation, gender identity or expression, nationality, age or social background. We would like to actively encourage applications from those who identify with less represented and minority groups. We do not filter applications by university background and encourage those who have taken alternative educational and career paths to apply
Apply now
Job expired?Please let Lunar Energy know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let Lunar Energy know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
February 28, 2026
Full time
Company
- London, United Kingdom
Expert level in frontend development and UI/UX design
UTC+00:00
