Silicon and Foundry Operations

Tylsemi•San Jose, CA

9d•Onsite

About The Position

About Tylsemi Tylsemi is building and scaling high-impact semiconductor operations. We partner across design, manufacturing, and supply chain to bring silicon from concept to high-volume production with speed, quality, and predictable execution. Role Overview As Silicon and Foundry Operations, you will own the operational backbone of Tylsemi’s silicon execution—from foundry engagement and tapeout readiness through wafer production, yield ramp, and delivery. This is a high-ownership leadership role for a seasoned operator (15 years+) who thrives in ambiguity, drives cross-functional alignment, and builds durable processes that scale across programs and manufacturing partners.

Requirements

15–30 years of experience in semiconductor operations spanning foundry manufacturing, silicon program management, supply chain, yield/quality, or related roles
Deep familiarity with the foundry ecosystem and the tapeout-to-HVM lifecycle (masking, wafer starts, probe, assembly, final test, qualification, ramp)
Proven ability to lead cross-functional execution across engineering and manufacturing partners, including senior stakeholder management
Strong operational judgment: ability to prioritize, simplify complex situations, and drive decisions under schedule and supply pressure
Track record of building scalable processes, metrics, and governance that improve predictability and execution quality
Excellent communication skills—clear executive updates, crisp documentation, and strong meeting leadership
Foundry operations and partner management
Silicon program execution (tapeout through production ramp)
Capacity planning, build planning, and WIP/cycle-time management
Yield ramp operations and manufacturing issue/excursion management
Cross-functional leadership and executive communication
Metrics, dashboards, and operational governance

Nice To Haves

Experience across multiple process nodes and packaging technologies (advanced packaging, chiplets, 2.5D/3D, HBM integration)
Background in quality systems (8D, CAPA, SPC) and customer qualification/PPAP-style readiness
Experience scaling operations in a fast-growing company or bringing new products from first silicon to high-volume production
Global manufacturing experience across multiple regions and time zones
Success in This Role Looks Like Predictable tapeout-to-silicon execution with clear readiness gates and minimal last-minute surprises
Strong visibility into supply, schedule, yield, and cost—paired with fast, effective mitigation when risks emerge
Improving yield and cycle time through disciplined reviews, crisp ownership, and rapid closure of actions
Trusted, high-leverage partnerships with foundries/OSATs that translate into reliable delivery and scalable capacity
A durable operating cadence that keeps teams aligned and programs on track as Tylsemi scales

Responsibilities

Own end-to-end silicon operations across multiple programs: planning, execution cadence, risk management, and delivery commitments
Lead foundry and OSAT operational engagement: capacity planning, build plans, WIP visibility, cycle time, and on-time delivery
Drive tapeout-to-silicon readiness: ensure PDK/flow readiness, signoff checklists, release governance, and cross-functional alignment (Design, PD, DFT, CAD, Packaging, Test, Quality, Supply Chain)
Establish and run operating rhythms (weekly exec reviews, build readiness reviews, yield reviews, postmortems) with crisp metrics and follow-through
Own yield ramp operations: coordinate debug priorities, lot disposition, excursion response, and corrective/preventive actions with internal teams and manufacturing partners
Build scalable program dashboards and reporting for schedule, cost, yield, quality, and supply risk; provide clear executive communication on tradeoffs and decisions
Manage change control across masks, process nodes, packaging, test flows, and BOM; ensure documentation and traceability
Partner with procurement and finance on wafer pricing, NRE/mask costs, and contract terms; support negotiations with data-driven operational inputs
Develop contingency plans for supply constraints (capacity, materials, tooling) and execute mitigation strategies to protect customer and internal milestones
Mentor and develop a small team over time; set high standards for accountability, clarity, and operational excellence