Senior Manager, SIOP (Sales, Inventory & Operations Planning)

About the role

The Senior Manager, SIOP will lead and mature the end-to-end Sales, Inventory, and Operations Planning process at our Fremont site. This role is critical for aligning demand, supply, and financial plans to ensure predictable execution, improved delivery performance, and optimized inventory.

Responsibilities

• Own and lead the monthly SIOP cycle, including demand review, supply review, pre-SIOP, and executive SIOP meetings.
• Establish and continuously improve a standardized, disciplined SIOP process aligned to business growth and operational needs.
• Drive alignment between demand forecasts, production capacity, and financial targets.
• Partner with Sales and Product Management to develop accurate demand forecasts, including pipeline analysis and scenario planning.
• Collaborate with Operations and Supply Chain to translate demand into feasible production and procurement plans.
• Balance capacity constraints, lead times, and inventory strategies to optimize service levels and cost.
• Develop inventory strategies to reduce excess and obsolete inventory while maintaining service levels.
• Maintain reporting dashboards for key SIOP metrics (forecast accuracy, on-time delivery, backlog health, inventory performance, capacity utilization).
• Identify risks related to demand volatility, supply constraints, and capacity limitations. Lead scenario planning and contingency planning efforts.
• Build and develop SIOP/planning capabilities within the site. Provide leadership, coaching, and direction to planners or analysts (if applicable).

Qualifications & Experience

• Bachelor’s degree in supply chain, Operations, Engineering, Business, or related field (MBA or advanced degree preferred).
• 8–12+ years of experience in supply chain, planning, or operations roles, with at least 3–5 years in SIOP leadership.
• Experience in high-mix, low-to-medium volume manufacturing (optics, photonics, aerospace/defense, or similar preferred).
• Proven track record of implementing or maturing SIOP processes in a complex environment.
• Strong understanding of ERP/MRP systems (e.g., SAP, Oracle, or similar).
• APICS/ASCM certification (CPIM, CSCP, or IBF) preferred.

Skills & Competencies

• Strong analytical and problem-solving capability; highly data driven.
• Ability to translate complex data into actionable insights.
• Executive presence with strong communication and facilitation skills.
• Proven ability to influence without authority across functions.
• Operational credibility with understanding of manufacturing constraints and workflows.
• Strong organizational skills with the ability to manage competing priorities.
• Continuous improvement mindset with a bias for action.

Personal Attributes

• Proactive and solutions-oriented; anticipates issues before they arise.
• Comfortable operating in ambiguity and building structure where needed.
• Collaborative and relationship-driven, with the ability to challenge constructively.
• High accountability and ownership mindset.