{"id":2839761,"url":"https://alion.io/job/onsemi-senior-principal-engineer","title":"Senior Principal Engineer","company":{"id":58717,"name":"onsemi","domain":"onsemi.com","url":"https://alion.io/company/onsemi","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":77,"open_postings":167,"ghost_share":0,"stale_share":0.904,"repost_share":0,"time_to_fill_p50_days":26,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","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":["Zhubei, Taiwan"],"countries":["TW"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":20000,"max_usd":51000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2219},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-19T01:54:42Z","employer_posted_date":"2026-10-19","last_verified_at":"2026-10-20T03:09:15Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"The Senior Principal Engineer, External Foundry Operations, serves as the operational owner for assigned foundries. The role is accountable for supplier performance across quality, yield, capacity, cost, and manufacturing continuity, while collaborating with Supply Chain and Planning teams to support delivery requirements. This position leads complex cross-functional issues, supplier governance, and improvement programs while influencing internal and external stakeholders without direct authority.\n Foundry Ownership and Performance\nServe as the primary operational owner for assigned foundries and the key interface between suppliers and onsemi stakeholders.\nOwn and improve foundry KPIs, including quality, yield, WIP, holds, scrap, capacity, and cost.\nLead supplier operational reviews and QBRs; establish priorities, recovery plans, escalation paths, and closure criteria.\nManufacturing Execution and Supply Continuity\nMonitor wafer starts, WIP movement, lot status, and capacity commitments to support business demand.\nIdentify production constraints, material risks, aging or held lots, and supply interruptions; drive timely mitigation and recovery.\nEnsure accurate foundry operational data and effective alignment of production priorities and supplier commitments.\nQuality, Yield, and Excursion Management\nLead containment and cross-functional resolution for excursions, maverick material, MRB, EFAR, customer complaints, and other foundry quality issues.\nDrive root-cause analysis, corrective and preventive actions, risk assessment, material disposition, and effectiveness verification.\nUse SPC, yield analysis, structured problem-solving, and Best Known Method deployment to improve process robustness and prevent recurrence.\nChange, Qualification, and Manufacturing Readiness\nCoordinate foundry changes involving process, material, equipment, site, or supply chain, including CAB and supplier PCN activities.\nPartner with Engineering, Quality, Reliability, Product, Supply Chain, Procurement, and Business Units to support qualification, transfer, NPI ramp, and production readiness.\nEnsure implementation plans include risk assessment, material control, production cut-in, contingency, and required approvals.\nSupplier Governance and Leadership\nLead complex, business-critical supplier issues and cross-functional task forces across multiple programs or foundry relationships.\nInfluence supplier priorities and internal decisions through clear technical judgment, risk-based recommendations, and executive communication.\nSupport supplier qualification, audits, compliance reviews, cost-improvement initiatives, and foundry operational strategy.\nProvide technical and operational guidance to team members and share scalable methods and best practices as needs arise.\nRequired Qualifications\nBachelor’s degree or above in Electrical Engineering, Chemical Engineering, Materials Science, Physics, or a related technical discipline; an advanced degree is preferred.\nSubstantial experience in semiconductor wafer fabrication, foundry operations, process integration, manufacturing engineering, product engineering, or supplier management.\nDemonstrated ownership of external foundry performance and complex manufacturing issues in a high-volume production environment.\nStrong knowledge of semiconductor fabrication, production control, yield management, quality systems, capacity planning, SPC, and structured problem-solving.\nProven ability to lead multiple projects, resolve ambiguous cross-functional issues, and influence supplier and senior stakeholders without direct authority.\nExcellent analytical, project-management, negotiation, communication, and English presentation skills.\nAbility to travel within Asia based on business needs.\n Experience across multiple foundries or technology platforms such as BCD, analog, power discrete, GaN, CIS, logic, or mixed signal.\nExperience with supplier audits, manufacturing transfer, qualification, NPI ramp, CAB, supplier PCN, product release, and automotive semiconductor requirements.\nExperience using manufacturing data and statistical tools to drive yield, quality, process robustness, capacity, and cost improvement.","description_format":"text","description_chars":4183,"description_truncated":false,"requirements":{"experience_years_min":null,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Hardware","Electrical & Electronic Engineering","Power Supplies & Power Electronics","Machine Vision & 3D Cameras"],"lifecycle":[{"event":"open","at":"2026-10-19T08:36:21Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":26,"reasons":["conf:2","win:early","comp:brand"],"computed_at":"2026-10-20T05:18:56Z"},"pay":null,"html_url":"https://alion.io/job/onsemi-senior-principal-engineer","json_url":"https://alion.io/job/onsemi-senior-principal-engineer.json","meta":{"generated_at":"2026-10-20T05:18:56Z","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":5841,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"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":58717},"rest":"https://alion.io/mcp/rest/get_company?id=58717"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fonsemi-senior-principal-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%2Fonsemi-senior-principal-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%2Fonsemi-senior-principal-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/onsemi-senior-principal-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fonsemi-senior-principal-engineer"}]}