{"id":1950096,"url":"https://alion.io/job/fuse-energy-firmware-engineer","title":"Firmware Engineer","company":{"id":3017,"name":"Fuse Energy","domain":"fuseenergy.com","url":"https://alion.io/company/fuse-energy","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":86,"open_postings":37,"ghost_share":0,"stale_share":0.541,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Hardware","role_family":"Hardware","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":56000,"max_usd":130000,"period":"year","method":"role_country_seniority_unknown","sample_n":88},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Docker","optional":false},{"name":"Embedded C","optional":false},{"name":"Git","optional":false},{"name":"Solana","optional":false},{"name":"C","optional":true}],"status":"live","first_seen_at":"2026-10-06T09:26:02Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-11T02:43:02Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $170M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more.\nWe’re creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.\nBut we’re not stopping there. We’re also building the Energy Network: a decentralised platform of smart devices to electrify our homes, shifting usage to off-peak hours and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.\nResponsibilities\nDevelop low-level firmware and drivers for microcontrollers and embedded peripherals (SPI, I2C, UART, DMA, ADC, etc.)\nDesign and implement real-time control software and embedded algorithms for energy devices \nWrite, test, and debug embedded C/C++ firmware running on bare-metal or RTOSbased systems \nCollaborate with hardware, systems and controls teams to define firmware requirements and test plans \nParticipate in code reviews, write documentation and contribute to the continuous improvement of firmware practices\nAssist in board bring-up, profiling and debugging using tools like oscilloscopes, JTAG/SWD, and logic analysers\nImplement and maintain bootloaders, linker scripts and firmware deployment pipelines\nRequirements\n2+ years of experience in embedded systems or firmware engineering \nStrong proficiency in C, with experience writing firmware for microcontrollers \nHands-on experience with common MCU peripherals: SPI, I2C, UART, DMA, timers, ADCs, Flash, CAN, etc.\nExperience working with real-time systems and embedded development toolchains (e.g., GNU, IAR) \nFamiliarity with version control and tooling (e.g., Git, Docker, CI pipelines) \nAbility to work with hardware debugging tools (oscilloscopes, logic analysers, JTAG/SWD)\nBonus\nExperience with power electronics or grid-connected converter controls \nKnowledge of control systems and digital signal processing (FIR, IIR, FFT) \nFamiliarity with embedded bootloaders, memory maps and linker scripts Experience with board bring-up and low-level hardware/software integration\nBenefits\nCompetitive salary and an equity sign-on bonus\nBiannual bonus scheme\nFully expensed tech to match your needs\nPaid annual leave\nBreakfast and dinner allowance for office based employees","description_format":"text","description_chars":2838,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Annual leave","Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy & Utilities"],"lifecycle":[{"event":"open","at":"2026-10-06T09:26:02Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":3,"expected_fill_days":27,"reasons":["conf:0","stale_co","velocity","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/fuse-energy-firmware-engineer","json_url":"https://alion.io/job/fuse-energy-firmware-engineer.json","meta":{"generated_at":"2026-10-11T03:07:39Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":509,"day_limit":5000,"remaining_today":4491,"minute_limit":60,"resets_at":"2026-10-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3017},"rest":"https://alion.io/mcp/rest/get_company?id=3017"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ffuse-energy-firmware-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ffuse-energy-firmware-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ffuse-energy-firmware-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/fuse-energy-firmware-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ffuse-energy-firmware-engineer"}]}