Lunar Energy

Staff Data Scientist

Join Lunar Energy in London as a Staff Data Scientist to develop algorithms for managing DER fleets and market trading. Benefit from competitive salary, private medical insurance, flexible remote work, and training support. Help shape sustainable home energy solutions with a visionary tech team.
Lunar Energy
Lunar Energy
London, United Kingdom Flexible Full time UTC+00:00 – UTC+02:00

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

At Lunar Energy, we're on a mission to transform the way we power our homes by building an ecosystem of all-electric products, starting with a next-generation home battery system and a cloud PaaS to manage large fleets of DER assets. Comprising a team of visionary entrepreneurs and dedicated technology and industry experts, we're united by our shared vision of deploying and building products to electrify homes that are connected through an integrated software platform.

We are looking for a Staff Data Scientist to join the software team in the UK.

Responsibilities

  • Building optimisation, forecasting and market participation algorithms to trade DER fleets in wholesale markets.
  • Modelling DER physical behaviour to connect control with market participation.
  • Operating large DER fleets in real time.
  • Quantifying uncertainty in asset behaviour and financial risk across strategies.

Your key skills & experience

  • 5+ years' experience as a Quantitative Developer, Data Scientist, Risk Analyst, or in a related field.
  • A good understanding of formal methods in quantitative finance.
  • A degree, MSc, or PhD in a quantitative field such as physics, mathematics, or statistics.
  • Professional experience with forecasting, optimisation, signal processing, control, and decision-making algorithms.
  • Professional experience with machine learning algorithms.
  • Extensive experience in one of Python, Julia, or OCaml, along with relevant libraries (e.g. pandas, TensorFlow, NumPyro).
  • Extensive experience with SQL and proficiency working with large datasets.
  • You love working in a smaller team where you can see the impact of your work.
  • You are a first-principles thinker with intellectual curiosity, a love of learning, and an openness to changing your mind when given new information.
  • You are autonomous and enjoy managing your own workload and deadlines.

Desirable skills

  • Professional experience with Bayesian modelling.
  • Software architecture experience.
  • Experience with the functional programming paradigm.
  • Experience with TypeScript.
  • Professional experience in the energy, trading, or commodities sector.
  • Experience with Unix-like operating systems.

Joining us gives you

  • Competitive Compensation: Enjoy a competitive salary and stock options package.
  • Healthcare Benefits: Access to a private Medical Insurance scheme through BUPA (medical history disregarded).
  • Wellbeing Perks: A wellbeing and lifestyle benefits plan through Medicash.
  • Financial Security: 5% employer contributions pension matching.
  • Investment in Your Growth: A budget of ??1,000 per financial year for work-related training and an allowance of 4 training days.
  • Eco-Friendly Commuting: Participate in the Cycle To Work scheme and benefit from the Workplace Nursery benefit.
  • Work Setup Support: Receive ??200 upon joining for remote work setup.
  • Mental Health Support: Access to Spill - a Mental Health Support platform.
  • Family-Focused Benefits: Enhanced Maternity and Paternity Pay.
  • Time Off: 25 days of annual holiday entitlement plus 8 Bank Holidays.
  • Flexible Work Arrangements: Enjoy flexible start and finish times, with the option for fully remote working or a hybrid setup, depending on your preferences.

Duration: Full-time

Location: Fully remote work within GMT+/-2 time zones (conditions apply). You're also welcome to work from our office in Liverpool Street, London (UK), as frequently as you desire.

Inclusivity Matters

Lunar Energy is committed to being an equal opportunities employer, welcoming applications from individuals regardless of their race, gender, ethnicity, disability, religion/belief, sexual orientation, gender identity or expression, nationality, age, or social background. We actively encourage applications from underrepresented and minority groups, and we do not filter applications by university background, welcoming those who have taken alternative educational and career paths.

Join Lunar Energy and be a part of the future of sustainable home energy. Make an impact, grow your expertise, and contribute to a cleaner, more eco-conscious world. Apply now!

Apply now

Job expired?

Please let Lunar Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.

About the role

July 1, 2026

July 3, 2026

Full time

Flexible

Company

Energy Storage

Lunar Energy

lunarenergy.com

  •  London, United Kingdom

5+ years

UTC+00:00 – UTC+02:00