{"id":568754,"url":"https://alion.io/job/sun-king-senior-firmware-engineer","title":"Senior Firmware Engineer","company":{"id":177485,"name":"Sun King","domain":"sunking.com","url":"https://alion.io/company/sun-king","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Pinpoint","truth_index":null},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dongguan, China"],"countries":["CN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":32000,"max_usd":74000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":8},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"GitHub","optional":false},{"name":"Wi-Fi","optional":false}],"status":"live","first_seen_at":"2026-09-08T11:07:57Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-11-01T17:04:43Z","board_verified":true,"closed_at":null,"days_open":54,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":54},"description":"Job location:\nShenzhen, China \nAbout the role:\n As a Senior Firmware Engineer, you will design, develop, and maintain software solutions for embedded systems in off-grid solar and residential energy storage products. You will collaborate with cross-functional teams across the entire product lifecycle-from hardware requirement scoping to software implementation. By leveraging the latest embedded technologies, you will deliver high-quality, high-performance software systems that bring reliable power, convenience, and security to households lacking electricity across Africa and Asia.\nWhat you will be expected to do\nDevelop Low-Level Drivers: Code and debug peripheral drivers including, but not limited to, UART, ADC, SPI, I2C, DMA, PWM, RTC, IAP, and LCD.\nDevelop Application Software: Design and optimize core applications, such as lithium-battery charge/discharge management, solar MPPT algorithms, MCU low-power management, HMI interfaces, and device status data logging.\nProduct Maintenance & Debugging: Investigate, troubleshoot, and resolve issues in existing embedded products to continuously optimize product performance and design.\nTechnical Documentation: Write and maintain comprehensive software design documents and technical specifications.\nYou might be a strong candidate if you have/are\nBachelor’s degree or above in Computer Science, Electronic Engineering, Communications, or a related field, \nwith at least 6 years of experience in embedded software development. Minimum 3 years of hands-on experience with STM32 (mandatory), and proficiency with at least one other architecture (e.g., Nuvoton/similar Cortex 32-bit MCUs, 8051, Freescale, TI, or NEC).\nExceptional C programming capabilities with solid coding foundations and excellent documentation habits.\nProven experience in low-power Bluetooth (BLE), Wi-Fi, GSM, or IoT module integration.\nFamiliar with hardware driver implementation; ability to read schematic diagrams, independently debug hardware drivers, and proficiently use instruments like oscilloscopes and multimeters.\nFluent in version control and project management tools such as SVN, GitHub, and Bugzilla.\nStrong learning agility, excellent communication, and a strong sense of teamwork. Professional proficiency in both written and spoken English.\nWhat Sun King offers\nProfessional growth in a dynamic, rapidly expanding, high-social-impact industry\nAn open-minded, collaborative culture made up of enthusiastic colleagues who are driven by the challenge of innovation towards profound impact on people and the planet.\nA truly multicultural experience: you will have the chance to work with and learn from people from different geographies, nationalities, and backgrounds.\nStructured, tailored learning and development programs that help you become a better leader, manager, and professional through the Sun King Center for Leadership.","description_format":"text","description_chars":2878,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"China","iso":"CN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Storage","Solar Energy"],"lifecycle":[{"event":"open","at":"2026-09-09T11:07:57Z"}],"visa":[],"liveness":{"score":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.683,"p_room":0.35,"age_days":53,"expected_fill_days":23,"reasons":["conf:1","velocity","win:tail","comp:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/sun-king-senior-firmware-engineer","json_url":"https://alion.io/job/sun-king-senior-firmware-engineer.json","meta":{"generated_at":"2026-11-01T18:33:15Z","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":28341,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":177485},"rest":"https://alion.io/mcp/rest/get_company?id=177485"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsun-king-senior-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%2Fsun-king-senior-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%2Fsun-king-senior-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/sun-king-senior-firmware-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsun-king-senior-firmware-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":568754}},{"tool":"search_jobs","arguments":{"company":"sunking.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":568754},"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); https://alion.io/mcp with an Alion account has everything. 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