{"id":818281,"url":"https://alion.io/job/lunarenergy-staff-firmware-engineer","title":"Staff Firmware Engineer","company":{"id":678689,"name":"Lunar Energy","domain":"lunarenergy.com","url":"https://alion.io/company/lunarenergy","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Hardware","role_family":"Hardware","seniority":"staff","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom","United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":101000,"max_usd":207000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":601},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Python","optional":true},{"name":"Rust","optional":true},{"name":"Wi-Fi","optional":true}],"status":"live","first_seen_at":"2026-08-18T22:40:45Z","employer_posted_date":"2026-08-19","last_verified_at":"2026-10-20T21:12:40Z","board_verified":true,"closed_at":null,"days_open":62,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":62},"description":"Staff Firmware Engineer\nEmbedded/Firmware Engineers at Lunar will be responsible for the full product development lifecycle of our products’ firmware and software, which are important sources of functionality, adaptability, and optimization of our designs. 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 dedicated, cross-functional team to deliver innovative, best-in-class products. Engineers at Lunar are hands-on and involved in all aspects of the product, and own the design from forming concepts based on first principles to managing high-volume production quality.\nLunar 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.\nOn a given day at Lunar, you’ll likely…\nDevelop wireless network communication solutions for high-volume products, ensuring continuous 24/7 reliability\nDesign firmware software that runs in our home energy product components: RF communication protocols, mobile app interfaces, system diagnostics and updates.\nDrive design discussions on system architecture to achieve the desired product functionality. \nCollaborate with the team on design and development, including participating in code reviews. \nWork 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\nDesired Skills:\nDegree in a computer-engineering related or adjacent field, or demonstrated commensurate ability.\n5+ years experience delivering firmware for new products as part of a team.\nProficiency in C, and working familiarity with Python. Rust knowledge is nice to have.\nExperience working with IP stack protocols: Ethernet, WiFi, TCP, UDP, HTTPS, etc\nWorking knowledge of Bluetooth/BLE.\nExperience working with WiFi networks and Espressif ecosystem\nWorking knowledge of Oscilloscopes, Logic Analyzers and other lab test equipment\nBenefits:\nWe’re dedicated to creating a remarkable employee experience. At Lunar, competitive base pay is one part of our total compensation package. Lunar employees also have the opportunity to become Lunar shareholders by getting equity in a fast-growing company and participating in our employee stock program.\nAdditional benefits include: \nCompetitive salary and stock options package\nPrivate Medical Insurance scheme through BUPA (medical history disregarded)\nA wellbeing and lifestyle benefits plan through Medicash\n5% employer contributions pension matching\nA budget for work related training of £1,000 per financial year and an allowance of 4 training days\nCycle To Work scheme and Workplace Nursery benefit\nAccess to Spill - Mental Health Support platform\nEnhanced Maternity + Paternity Pay\n25 days annual holiday entitlement + 8 Bank Holidays\nFlexible start and finish times, fully remote working or hybrid depending on preferences\nOur 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. 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