Sr. Manager, Backend Sourcing

Job Description onsemi is seeking a highly driven and collaborative sourcing manager to join the Procurement organization as Manager, Backend Sourcing, based in Scottsdale, Arizona or San Jose, California. This role is responsible for managing strategic engagement with semiconductor assembly, test, packaging, substrate, and related backend manufacturing partners. You will develop and execute sourcing strategies that deliver market-competitive cost, supply assurance, quality, technology access, and alignment with onsemi’s product and manufacturing roadmaps. You will work closely with Business Units, Package Engineering, Test Engineering, Operations, Quality, Finance, Legal, and Supply Chain to translate strategy into disciplined commercial and operational execution. Responsibilities Team & Sourcing Leadership Lead, coach, and develop a sourcing team responsible for semiconductor assembly, test, packaging, substrates, and related backend servicesDevelop and execute category and supplier strategies aligned with corporate objectives, Business Unit growth plans, and package and test technology roadmapsManage relationships with key OSAT, substrate, test, and backend manufacturing suppliers across the United States, Asia, and EuropeBalance long-term capacity, technology, cost, and supplier-development priorities with near-term operational requirements Supplier Relationship & Market Management Own day-to-day and senior-level relationships with strategic backend suppliers and build partnerships beyond transactional sourcingImplement Supplier Relationship Management governance, joint improvement roadmaps, and regular business reviewsPrepare and lead supplier business reviews, track commitments, and drive timely closure of actions and escalationsMonitor backend market dynamics, packaging and test technology trends, capacity conditions, geopolitical risks, and supplier capabilities Commercial & Negotiation Management Lead negotiations for assembly, test, packaging, substrate, tooling, capacity, contracts, statements of work, and non-recurring engineeringManage RFQs, cost-model analysis, market benchmarking, bid normalization, and fact-based supplier counterproposalsNegotiate agreements that secure supply, quality, flexibility, and competitive cost while managing commercial risk and long-term commitmentsBuild and execute cost-reduction roadmaps and value-creation initiatives with suppliers and internal stakeholders Operational Execution & Cross-Functional Alignment Partner with Supply Chain and Planning to translate demand forecasts into assembly, test, substrate, and backend capacity plansSupport new product introductions, package and test qualifications, production ramps, transfers, and business continuity plansAlign suppliers with product, package, test, quality, yield, cycle-time, and manufacturing roadmapsCoordinate decisions and execution across global Business Units, Engineering, Operations, Quality, Finance, Legal, and Supply Chain teams Performance Management & Continuous Improvement Establish and manage supplier KPIs across cost, quality, delivery, yield, cycle time, capacity, technology, and responsivenessDrive commercial and operational corrective actions, escalation management, and continuous improvement with suppliersOptimize the backend supplier portfolio to improve competitiveness, resilience, geographic diversification, and technology coverageDeliver measurable savings, cost avoidance, working-capital improvement, and supply-risk reduction Qualifications QUALIFICATIONS 10+ years of semiconductor industry experience, including significant responsibility in backend sourcing, assembly and test manufacturing, packaging, substrates, supply chain, operations, or a related fieldProven experience leading teams, managing complex projects, and influencing across global, matrixed organizationsStrong record of negotiating assembly, test, packaging, substrate, capacity, and complex commercial agreementsDeep understanding of semiconductor backend economics, package and test technologies, manufacturing flows, supply dynamics, and supplier cost driversDemonstrated ability to translate Business Unit, product, package, and test requirements into actionable sourcing strategiesBachelor’s degree in engineering, supply chain, business, finance, or a related field Preferred Qualifications Based in or able to work from Scottsdale, Arizona or San Jose, California, with flexibility for global travelEstablished relationships within the global OSAT, substrate, test, packaging, and backend manufacturing ecosystemExperience sourcing across conventional and advanced packaging, wafer-level packaging, assembly, final test, wafer sort, and substratesAdvanced degree and a track record of delivering sustained cost, capacity, quality, technology, and risk-management results About Us onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world. More details about our company benefits can be found here: https://www.onsemi.com/careers/career-benefits About The Team We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work. onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact Talent.acquisition@onsemi.com for assistance.