Senior Demand Planner: Drive S&OP & Forecast Excellence

Coherent Corp.; Santa Clara (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Coherent Corp. is seeking an experienced Demand Planning Manager to consolidate and drive the demand plan across Sales, Operations, and Manufacturing.

You will guide the S&OP cycle, prepare inputs, and highlight risks and opportunities while tracking forecast accuracy and KPIs. The role emphasizes data-driven decision making, collaboration with cross-functional teams, and a proactive approach to mitigating capacity constraints and misalignments.

Qualifications

• 8–10 years of experience in demand planning, supply chain planning, production planning, or related fields.
• Experience in manufacturing or semiconductor industry preferred.
• Experience supporting S&OP, demand reviews, or integrated business planning processes preferred.
• Demonstrated ability to work cross-functionally in a matrix organization.

Responsibilities

• Maintain a consolidated demand plan and provide visibility to Sales, Operations, Manufacturing, and Supply Chain teams.
• Support the monthly S&OP process by preparing demand inputs, reviewing forecast changes, and highlighting risks and opportunities.
• Monitor forecast accuracy, demand variability, backlog, and planning performance using dashboards and KPIs.
• Analyze demand trends and identify demand risks, upside opportunities, and mitigation plans.
• Partner with Sales and Commercial teams to understand customer demand drivers and changing business priorities.
• Support capacity planning and product allocation decisions through data-driven demand analysis.
• Coordinate demand changes across manufacturing sites to improve demand-to-supply alignment.
• Prepare executive-ready reports, planning metrics, and demand review materials.
• Identify opportunities to improve planning processes, reporting, and data quality.
• Support implementation and adoption of planning tools, dashboards, and standard planning processes.
• Cross collaboration with functional stakeholders and suppliers across time zones.
• Monitor key supply and capacity constraints, proactive communication of impact to site planners and stakeholders, and support development of mitigation planning.
• Support product prioritization and allocation activities by preparing demand scenarios, analyzing trade-offs, and coordinating with cross-functional stakeholders.

Skills

Demand planning

Supply chain planning

Production planning

ERP systems

Excel (advanced)

Power BI

Tableau

Cross-functional collaboration

Stakeholder management

Education

Bachelor's degree: Supply Chain, Business, Engineering, Operations, or related field

APICS/ASCM certification (CPIM, CSCP) or equivalent

Tools

Power BI

Tableau

Excel

Job description

Coherent Corp. is seeking an experienced Demand Planning Manager to consolidate and drive the demand plan across Sales, Operations, and Manufacturing.

You will guide the S&OP cycle, prepare inputs, and highlight risks and opportunities while tracking forecast accuracy and KPIs. The role emphasizes data-driven decision making, collaboration with cross-functional teams, and a proactive approach to mitigating capacity constraints and misalignments.