{"id":2570181,"url":"https://alion.io/job/tylsemi-senior-embedded-serdes-firmwarediagnostics-engineer","title":"Senior Embedded SERDES Firmware/Diagnostics Engineer","company":{"id":4380397,"name":"TYLsemi","domain":"tylsemi.ai","url":"https://alion.io/company/tylsemi","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":{"grade":"A","score":90,"open_postings":13,"ghost_share":0,"stale_share":0.385,"repost_share":0,"time_to_fill_p50_days":55,"computed_at":"2026-11-05T05:54:30Z"}},"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":["San Jose, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":134000,"max_usd":247000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1517},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"HPC","optional":false},{"name":"C++","optional":true},{"name":"CI/CD","optional":true},{"name":"Doxygen","optional":true},{"name":"Git","optional":true},{"name":"GitHub","optional":true},{"name":"OpenAI","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-10-06T01:59:05Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-11-05T19:31:41Z","board_verified":true,"closed_at":null,"days_open":30,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":30},"description":"About TYLsemi, Inc.\nThe Opportunity\nThe AI infrastructure market is exploding. Every hyperscaler, every cloud provider, every AI company is building custom silicon. But they all face the same problem: how do you connect hundreds of chips, deliver clean power at scale, and move terabits of data without melting the package?\nThat's what we solve. TYLsemi builds the chiplet infrastructure IP - the IO, power delivery, and interconnect building blocks - that makes AI/HPC systems actually work at scale.\nThis isn't a nice-to-have. It's the critical path.\nWhy Now\nThe Market Window\nThe semiconductor industry is going through its biggest architectural shift in 40 years:\nMoore's Law is dead. 2nm and beyond delivers marginal performance gains. The future is chiplets, not monolithic dies.\nCustom silicon is now mainstream. Google, Microsoft, Amazon, Meta, OpenAI - they're all designing their own ASICs. The $50B custom silicon market is growing 30% annually.\nIO and power are the bottleneck. Solve hard problems and provide something which is a category in itself.\nTranslation: We're entering the market at exactly the moment when every major AI/HPC player needs what we're building, and their alternatives are disappearing.\nCulture & Team: How We Work\nNo Politics, No Bureaucracy\nThere are no layers, no approval chains, no corporate theater.\nIf you have an idea, we test it. If it works, we ship it.\nNo endless meetings, no PowerPoint presentations to convince middle management.\nRemote-Friendly, Global Team\nUS team: Bay Area preferred, but we hire the best people regardless of location\nIndia team: Building a world-class design center in Bangalore\nMove Fast, Ship Real Products\nWe're not a research project. We have paying customers, committed capital, and aggressive timelines.\nThis is a company, not a lifestyle business. We're building to win.\nWhat We Value\nOwnership mindset. You're not here to execute someone else's roadmap. You're here to define it.\nBias for action. We move fast. Analysis paralysis doesn't fly here.\nDeep technical expertise. This is hard engineering. We need people who've shipped real silicon and debugged real hardware.\nLow ego, high standards. We don't care about titles or politics. We care about results.\nThe Ask\nIf you're reading this, you're probably comfortable. You have a good job at a stable company with all the benefits.\nWe're asking you to walk away from that and bet on us.\nHere's why you should:\nThe market is real. AI infrastructure spending is $200B+ annually and growing 40% YoY. Every hyperscaler needs what we're building.\nThe team has done this before. We've built and exited semiconductor companies at scale. This isn't our first rodeo.\nThe traction is de-risked. We have LOIs, strategic investors, and a clear path to revenue.\nThe work is consequential. You're not optimizing someone's ad click-through rate. You're building the silicon infrastructure that powers AI.\nThis is the bet. Join us and build something that matters.\nOr stay comfortable. No judgment.\nBut if you're the kind of person who wants to take the shot, we'd love to talk.\nREADY TO JOIN?\nRole Overview\nWe're hiring a senior firmware engineer to architect, develop, and bring up embedded firmware for Ethernet SerDes, retimers, and diagnostics. The role covers SerDes, calibration, manufacturing, and test firmware. You'll work closely with ASIC, module, manufacturing, test, and reliability teams. You'll define ARM and RISC-V control architectures, write digital requirements for custom control ASICs, build a solid firmware development and CI flow, and mentor engineers across programs.\nWhat you'll do\nArchitecture & Development: Architect, develop, debug, and release production firmware for next-generation optical engines and module platforms (SFP/QSFP/OSFP)\nASIC & System Specification: Define digital requirements for custom control ASICs, including MCU selection, memory maps, boot sequence, peripherals, telemetry, diagnostics, MACsec engines, and PTP hardware timestamping\nSystem Integration: Partner with ASIC, RTL, and verification teams on architecture, board bring-up, and system-level debug\nProtocols & Interfaces: Build and maintain firmware for Ethernet, PCIe, and SerDes (link training, interop, compliance), PTP/IEEE 1588, MACsec, and host interfaces\nBring-Up & Diagnostics: Lead first firmware bring-up on new modules and ASICs, and drive root-cause analysis across lab, qualification, and field returns\nManufacturing & Calibration: Deliver firmware for manufacturing test, screening, calibration engines, and lookup tables that support high-yield production\nDevOps & CI/CD: Own the firmware workflow, including build/release pipelines, automated tests, regression coverage, and CI\nWhat We're Looking For\nBS/MS/PhD in EE, CE, CS, or equivalent, with 8+ years in embedded firmware\nExpert C and C-based SDK development; exposure to modern C++ or Rust\nExperience defining MCU requirements (ARM, RISC-V) and working with I2C, I3C, SPI, MDIO, and GPIO\nStrong Python for test automation, data processing, and firmware QC\nHands-on with GCC/Make, Git/GitHub, Doxygen, CI/CD, and hardware-in-the-loop automation\nExperience using AI-assisted coding, refactoring, and test generation in an embedded workflow\nA track record of leading cross-functional bring-up and mentoring engineers\nGood to Have\nMACsec (802.1AE) key management or data-plane acceleration, and PTP hardware timestamping or clock recovery, in optical hardware\nRoot of Trust, Secure Boot, and secure firmware update (FOTA/UFOTA)\nSerDes management, link-training tuning, and real-time diagnostic frameworks\nProduct qualification, stress testing, reliability investigations, and board-level FA\nCompensation\nThe compensation range shown below represents total target cash compensation and includes both base salary and target bonus. Actual compensation will vary based on factors such as experience, skills, qualifications, job level, and work location.\nIn addition to cash compensation, this position is eligible for equity in the form of stock options, giving you the opportunity to share in the Company’s long-term growth and success.","description_format":"text","description_chars":6129,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Stock options"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Chips & Accelerators","Semiconductor IP & Chip Design Services"],"lifecycle":[{"event":"open","at":"2026-10-14T22:44:48Z"}],"visa":[],"liveness":{"score":81,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":0.9,"age_days":30,"expected_fill_days":55,"reasons":["conf:2","velocity","win:mid"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/tylsemi-senior-embedded-serdes-firmwarediagnostics-engineer","json_url":"https://alion.io/job/tylsemi-senior-embedded-serdes-firmwarediagnostics-engineer.json","meta":{"generated_at":"2026-11-05T21:31:21Z","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":1495,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":4380397},"rest":"https://alion.io/mcp/rest/get_company?id=4380397"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftylsemi-senior-embedded-serdes-firmwarediagnostics-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%2Ftylsemi-senior-embedded-serdes-firmwarediagnostics-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%2Ftylsemi-senior-embedded-serdes-firmwarediagnostics-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/tylsemi-senior-embedded-serdes-firmwarediagnostics-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftylsemi-senior-embedded-serdes-firmwarediagnostics-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2570181}},{"tool":"search_jobs","arguments":{"company":"tylsemi.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2570181},"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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