Lunar is transforming the way we power our homes by building an ecosystem of all-electric products starting with a next-generation home battery system. The Lunar team is made up of savvy entrepreneurs as well as passionate technology and industry experts who build and deploy products to electrify homes, which are connected through an integrated software platform called, Gridshare

We are looking for a Senior Firmware Engineer to join our ambitious, focused and collaborative team of talented developers to build the features the company needs to succeed in its vision.

Responsibilities:-

These include any subset of:-

• Developing the firmware for our hardware devices including optimisation on the edge.
• Designing, coding and testing sub-systems that provide high performance functionality on constrained hardware.
• Writing code across the full embedded stack from bootloader to high-level application software, including on embedded Linux operating systems.

Your required skills:

• 5+ years’ experience developing and architecting software, with experience of the full lifecycle from prototype to production.
• Experience developing C in bare metal systems and/or RTOS.
• Experience implementing power electronics firmware control functionality.
• Ability to integrate hardware and software to develop end to end solutions.
• Happy working in a small, fast moving team, in which your individual initiative and contributions can have a big impact.
• Contribute in a multi-disciplinary team following modern software engineering practices (e.g. Git, Continuous Integration).

Good to have:

• Familiarity with automated testing tools and debugging methodologies.
• Experience with battery management systems and AC/DC converters.
• Ability to read hardware schematics and PCBs.
• Experience in any of: Rust / Python.

You should be:

• Happy working in a small, fast-moving team, in which your initiative and contributions can have a big impact
• Willing to travel to and work from the HQ office in California a few times a year

Joining us gives you:

• Competitive salary from £70,000 to £95,000 per Annum and stock options package
• Private Medical Insurance scheme through 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
• £200 upon joining for remote work set-up
• Access to Spill - Mental Health Support platform
• Enhanced Maternity + Paternity Pay
• 25 days annual holiday entitlement + 8 Bank Holidays
• Flexible start and finish times, fully remote working or hybrid depending on preferences

Location: This role can be fully remote inside the UK. Our offices in Liverpool Street (London) and Manchester will remain available for any employees who wish to use them on a part-time or full-time basis. We would also consider candidates interested in relocating to California, USA.

We are proud to be an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their 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.