Sandisk understands how people and businesses consume data and we relentlessly innovate to deliver solutions that enable today’s needs and tomorrow’s next big ideas. With a rich history of groundbreaking innovations in Flash and advanced memory technologies, our solutions have become the beating heart of the digital world we’re living in and that we have the power to shape.
Sandisk meets people and businesses at the intersection of their aspirations and the moment, enabling them to keep moving and pushing possibility forward. We do this through the balance of our powerhouse manufacturing capabilities and our industry-leading portfolio of products that are recognized globally for innovation, performance and quality.
Sandisk has two facilities recognized by the World Economic Forum as part of the Global Lighthouse Network for advanced 4IR innovations. These facilities were also recognized as Sustainability Lighthouses for breakthroughs in efficient operations. With our global reach, we ensure the global supply chain has access to the Flash memory it needs to keep our world moving forward.
Job Description
Role Summary
Own the end-to-end PCIe system design for an NVMe SSD product line across client laptops and enterprise servers, from PHY/MAC review through ASIC/SoC integration, PCIe SFR/register analysis, and firmware design guidelines for robust link training, link transitions, low-power behavior. This role sits at the intersection of PCIe spec compliance, NVMe behavior, FW architecture, platform interoperability, and power/performance tuning.
Key Responsibilities
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Own system‑level PCIe Gen5/Gen6 architecture from an NVMe SSD endpoint perspective
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Define and review PCIe + NVMe integration across SSD products
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PHY + MAC IP review, integration requirements and constraints
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SoC/ASIC integration: clocks, resets, power domains, straps, lane mapping, sidebands
“What to do when”: training fails, width reduces, speed fallback, AER floods
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Safe sequencing across power modes and APST transitions
1.
Link Bring‑Up & Transitions (Sequence Ownership)
You’ll own/define the exact sequencing rules for:
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Enumeration readiness
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Ensure config space stability, BAR mapping correctness, MSI/MSI-X readiness timing
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Speed negotiation / Directed Speed Change
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When to allow Gen5/Gen4 fallback; policy for stability vs performance
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Width detection & recovery
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Handling degraded width events (x4 → x2) and reporting/telemetry
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Link power management
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ASPM policy and its constraints with NVMe latency targets
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L1 entry/exit triggers and guard timers
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L1 Substates (L1.1/L1.2) enablement conditions, wake sources, and clock requirements
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DLRM handling (as applicable to platform/system) with safe NVMe readiness on resume
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L0p (if supported) and interaction with performance bursts
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Clock down / clock request
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Define clock request gating conditions, and safe “no transactions in flight” criteria
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NVMe APST alignment
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Coordinate NVMe power states (APST) with PCIe L-states so you don’t create:
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long resume latencies (client)
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link instability under load (enterprise)
1.
Platform Interoperability
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Own differences across laptop and server:
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Client: aggressive power policies, fast resume, frequent idle entry/exit, D3hot/cold patterns
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Enterprise: stable performance, high queue depth, error containment, hot-plug-ish behaviors on some platforms
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Validate across:
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Multiple root complexes, BIOS implementations, OS stacks
Additional Information
Legal
Sandisk thrives on the power and potential of diversity. As a global company, we believe the most effective way to embrace the diversity of our customers and communities is to mirror it from within. We believe the fusion of various perspectives results in the best outcomes for our employees, our company, our customers, and the world around us. We are committed to an inclusive environment where every individual can thrive through a sense of belonging, respect and contribution.
Sandisk is committed to offering opportunities to applicants with disabilities and ensuring all candidates can successfully navigate our careers website and our hiring process. Please contact us at [email protected] to advise us of your accommodation request. In your email, please include a description of the specific accommodation you are requesting as well as the job title and requisition number of the position for which you are applying.