{"id":3977966,"url":"https://alion.io/job/kimbal-technologies-lead-firmware-engineer-bess","title":"Lead Firmware Engineer - Bess","company":{"id":3808941,"name":"Kimbal Technologies","domain":"kimbal.io","url":"https://alion.io/company/kimbal-technologies","size_band":"501-1000","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":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Battery Management Systems","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Embedded C","optional":false},{"name":"FreeRTOS","optional":false},{"name":"Git","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"RTOS","optional":false},{"name":"Simulink","optional":false},{"name":"C","optional":true}],"status":"live","first_seen_at":"2026-11-09T18:35:35Z","employer_posted_date":null,"last_verified_at":"2026-11-09T18:35:35Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"Kimbal is developing its own Battery Management System (BMS) and Energy Management System (EMS) for utility-scale Battery Energy Storage Systems (BESS). We are looking for a Firmware Engineer to write the embedded software and battery algorithms that protect our systems and extract the most usable energy from every cell.\n\nYou will work from bare-metal drivers to safety logic and state estimation, in close partnership with the hardware, controls and systems engineers, and see your code run on systems deployed on India's grid.\n\nKey Responsibilities:\nDevelop BMS firmware across the module, rack and system tiers on embedded microcontrollers: drivers, RTOS integration, bootloader and secure firmware-update modules.\nImplement battery protection and safety logic: over/under-voltage, current and temperature protection, isolation-fault detection, sensor-failure handling and thermal-event response.\nImplement contactor and pre-charge control, rack paralleling, and fault diagnostics with event logging.\nImplement and tune battery algorithms: state-of-charge, state-of-health and state-of-power (power limit) estimation, and cell, module and rack balancing.\nParameterise cell models from Kimbal's cell characterisation data, and validate the algorithms against lab and field data.\nDevelop communication stacks and interfaces to the EMS and plant controller (CAN, Modbus TCP/RTU).\nTrace safety requirements from hazard analysis through to code and test.\nWrite testable, well-reviewed code: unit tests, static analysis, and automated hardware-in-the-loop (HIL) testing.\nSupport lab validation, certification testing and field commissioning of pilot deployments, and use field data to improve firmware and algorithms.\n\nCurrent Challenges:\nShipping safety-critical firmware for a new product on a delivery date committed to the customer.\nBuilding accurate, robust state estimation for LFP chemistry, whose flat voltage curve makes estimation hard, compromising safety or cycle life.\nBuilding a firmware and algorithm platform that adapts across cell formats and suppliers with minimal rework.\n\nJob Requirements:\nB.Tech / M.Tech in Electrical, Electronics, Computer Science or Embedded Systems from a premier institute.\n4-7 years of experience in embedded firmware development, ideally for BMS, EV, power electronics or industrial control systems.\nStrong embedded C/C++ on microcontrollers; experience with an RTOS (FreeRTOS or similar) and bare-metal firmware.\nWorking knowledge of CAN, SPI, I2C and UART, and of debugging with JTAG, logic analysers and oscilloscopes.\nSolid grounding in lithium-ion battery fundamentals, signal processing or estimation (e.g. Kalman filtering) is a strong plus.\nPreferred: exposure to functional-safety practices (IEC 61508 / ISO 26262), MISRA C, or model-based development (MATLAB/Simulink).\nPreferred: Git, CI/CD and Python for test automation.\nSkills\nC, C++, Embedded, Firmware","description_format":"text","description_chars":2912,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Storage","Smart Grid","Energy Management"],"lifecycle":[{"event":"open","at":"2026-11-09T18:35:35Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":2,"expected_fill_days":31,"reasons":["seen:2","win:early"],"computed_at":"2026-11-12T10:38:37Z"},"pay":null,"html_url":"https://alion.io/job/kimbal-technologies-lead-firmware-engineer-bess","json_url":"https://alion.io/job/kimbal-technologies-lead-firmware-engineer-bess.json","meta":{"generated_at":"2026-11-12T17:01:25Z","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_verified","counted_by":"address","units_charged":1,"used_today":35736,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":3808941},"rest":"https://alion.io/mcp/rest/get_company?id=3808941"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fkimbal-technologies-lead-firmware-engineer-bess"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fkimbal-technologies-lead-firmware-engineer-bess"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fkimbal-technologies-lead-firmware-engineer-bess"},{"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/kimbal-technologies-lead-firmware-engineer-bess\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fkimbal-technologies-lead-firmware-engineer-bess"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3977966}},{"tool":"search_jobs","arguments":{"company":"kimbal.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3977966},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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