{"id":3448208,"url":"https://alion.io/job/apple-wireless-firmware-engineer","title":"Wireless Firmware Engineer","company":{"id":12,"name":"Apple","domain":"apple.com","url":"https://alion.io/company/apple","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Apple Jobs","truth_index":{"grade":"A","score":90,"open_postings":860,"ghost_share":0,"stale_share":0.179,"repost_share":0.002,"time_to_fill_p50_days":95,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Hardware","role_family":"Hardware","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Shanghai, China"],"countries":["CN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":47000,"max_usd":106000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":843},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C","optional":true},{"name":"Embedded C","optional":true},{"name":"NumPy","optional":true},{"name":"Perl","optional":true},{"name":"Python","optional":true},{"name":"RTOS","optional":true},{"name":"SciPy","optional":true},{"name":"Zigbee","optional":true}],"status":"live","first_seen_at":"2026-10-29T09:04:52Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-02T08:01:37Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Would you like to join Apple’s growing Wireless Connectivity Silicon team? Our wireless System on a Chip (SoC) organization is responsible for all aspects of wireless silicon development with a particular emphasis on highly energy efficient design and new technologies that transform the user experience at the product level, all of which is driven by a world-class vertically integrated engineering team spanning RF/Analog architecture and design, Systems/PHY/MAC architecture and design, VLSI/RTL design and integration, Emulation, Design Verification, Test and Validation, and FW/SW engineering. In this highly visible role, you will be at the center of a silicon design group with a critical impact on getting functional wireless products to hundreds of millions of customers! Responsible for crafting and implementing embedded firmware for SoC bring up and wireless connectivity enablement. You will work closely with product software and manufacturing teams to enable RF and PHY calibrations, algorithms and testing to enable productization of the silicon / system.\nDescription\nAs an Embedded FW Engineer, the individual will be a core member of a Wireless SoC firmware team, with emphasis on PHY bring up, RF calibrations, signal processing algorithm implementation and performance tuning\nWork closely with product SW and manufacturing teams to provide system-level API and firmware functionality to meet productization needs. Develop SoC test and calibration capabilities for wafer, module, and system factories.\nCollaborate with RF/Radio design, DVT, PHY and System engineering teams to architect, define and implement innovative algorithms, calibrations and protocols.\nDebug realtime systems with limited visibility, working hands-on with development boards and lab equipment.\nSupport pre-silicon validation efforts, including simulation, emulation, and FPGA prototyping.\nSupport post-silicon bringup, validation, performance characterization, system integration and debug.\nMinimum Qualifications\nBS and 3+ years of relevant industry experience\nEmbedded systems knowledge including:\nmulti thread environment\nInterrupt thread processing/latency\nMulti core environment\nHW/FW semaphores/resource management\nPreferred Qualifications\nStrong background in embedded FW development using C and assembly languages, familiarity with ARM CPUs and its internals.\nGood understanding of embedded wireless communication systems, Radio and PHY fundamentals and key RF performance metrics. Familiarity with digital signal processing algorithms\nUnderstanding python match library like numpy/SciPy and how to convert it to embedded C.\nUnderstanding difference between fix point and floating points and how to make arithmetic tradeoff and simplify embedded usage.\nExperience with low-level hardware interfaces, register and interrupt programming, bare-metal software development, clock and power management.\nSolid understanding of basic embedded concepts such as RTOS, concurrency, multi-processor systems.\nFluency in using lab equipment such as logic analyzers, oscilloscopes, network analyzers, spectrum analyzers, signal generators, power meters etc.\nExperience implementing diagnostics, manufacturing tests, and protocol compliance software.\nKnowledgeable of industry standards for wireless communications such as Bluetooth, WLAN, Zigbee, UWB is a plus.\nProficient in at least one of the scripting languages such as Python, Perl, or Tcl\nExcellent communication skills - both written and oral.","description_format":"text","description_chars":3486,"description_truncated":false,"requirements":{"experience_years_min":3,"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":["Operating Systems","Laptops","Smartwatches & Fitness Trackers","Tablets"],"lifecycle":[{"event":"open","at":"2026-10-29T09:33:57Z"}],"visa":[],"liveness":{"score":99,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.993,"p_room":1,"age_days":3,"expected_fill_days":95,"reasons":["conf:2","urgency","velocity","win:early","comp:brand"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/apple-wireless-firmware-engineer","json_url":"https://alion.io/job/apple-wireless-firmware-engineer.json","meta":{"generated_at":"2026-11-02T12:14:40Z","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":16786,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":12},"rest":"https://alion.io/mcp/rest/get_company?id=12"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fapple-wireless-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%2Fapple-wireless-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%2Fapple-wireless-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/apple-wireless-firmware-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fapple-wireless-firmware-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3448208}},{"tool":"search_jobs","arguments":{"company":"apple.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3448208},"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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