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Sr. Manager, SIOP and Planning (Sales, Inventory, Operations Planning)

L3Harris


Job Location:

Ontario - Canada

Monthly Salary: Not provided by the employer
Posted: 6 August 2026 (30+ days ago)
Application Deadline: 3 November 2026
Vacancies: 1 Vacancy

Job Summary

Senior Manager SIOP and Planning

Job Code: 41880

Location: Waterdown Ontario

About the Role

Reporting to the Director of Operations the Senior Manager SIOP & Planning serves in a key leadership role providing strategic direction for the Sales Inventory & Operations Planning (SIOP) process and leading the Planning organization including Master Scheduling Production Planning and Planning Change Management. The role builds and develops a high-performing team while shaping medium- and long-term operational plans influencing cross-functional decisions and aligning customer demand operational capacity inventory investment revenue commitments and strategic priorities to drive sustainable business performance.

The Senior Manager ensures the integrity of the companys planning processes systems and Master Production Schedule while establishing clear priorities accountability and effective operating practices across the Planning team. As a trusted advisor to Operations leadership the incumbent drives alignment across Engineering Demand Supply Chain Operations Program Management and Finance identifies business risks and opportunities and ensures mitigation plans are developed and executed. The role also fosters talent development collaboration and continuous improvement within a dynamic manufacturing environment.

Primary Responsibilities

  • Lead coach mentor and develop a high-performing planning organization including SIOP professionals Master Schedulers Production Planners and Planning Change professionals through clear objectives performance expectations resource allocation development plans succession planning and ongoing feedback.
  • Provide strategic leadership and governance for the end-to-end Sales Inventory and Operations Planning (SIOP) process aligning demand supply capacity inventory investment customer commitments revenue expectations and financial objectives.
  • Lead the complete SIOP cycle including preparation functional reviews demand and supply alignment scenario development executive reviews decision-making and follow-up while ensuring assumptions constraints risks opportunities and agreed actions are documented communicated and tracked.
  • Enable informed executive decision-making by delivering accurate and timely reporting scenario analyses planning alternatives risk assessments and recommendations and by escalating significant forecast gaps capacity constraints delivery concerns and business performance risks to the Director of Operations.
  • Foster a culture of ownership accountability collaboration professional excellence and continuous improvement holding team members and cross-functional stakeholders accountable for agreed actions mitigation plans and the realization of business opportunities.
  • Establish governance standards and performance expectations for Master Scheduling and Production Planning ensuring production plans and schedules support customer commitments revenue targets inventory objectives material availability capacity requirements and manufacturing efficiency across sustaining operations and New Product Introduction.
  • Ensure alignment among forecasts customer demand capacity plans material strategies and production schedules leading the resolution of scheduling conflicts material shortages capacity constraints and operational risks and governing the assessment approval documentation communication and execution of build plan changes.
  • Provide strategic planning oversight for enterprise and product lifecycle changes including Enterprise Change Assessments engineering changes new product introductions product transfers cut-ins supersessions and product sunsets ensuring cross-functional planning readiness before implementation.
  • Partner with Engineering Product Lifecycle Management Demand Management Program Management Operations Finance Commercial and Supply Chain teams to develop achievable operational plans establish business priorities manage product transitions optimize inventory and enable effective execution through proactive communication and alignment.
  • Ensure the integrity accuracy timeliness and effective governance of planning data systems and structures including ERP MRP reporting environments Planning BOMs and fractional Planning BOMs so they support forecasting material planning capacity planning inventory management and business decision-making.
  • Own and improve planning and operational performance metrics including On-Time Delivery Master Schedule Attainment AOP Achievement forecast accuracy planning accuracy schedule attainment capacity utilization inventory health production performance and revenue attainment driving corrective actions when results do not meet expectations.
  • Lead continuous improvement and business transformation across the planning function championing Lean Kaizen Operational Excellence digital transformation standardization automation advanced analytics system enhancements and industry best practices to improve planning accuracy schedule stability operational effectiveness and customer satisfaction.

Desired Skills and Knowledge

Planning and Technical Expertise

  • Expert knowledge of Sales Inventory and Operations Planning (SIOP) Master Scheduling Production Planning and Capacity Planning principles and practices.
  • Strong knowledge of modern manufacturing planning and control methods including Enterprise Resource Planning (ERP) Material Requirements Planning (MRP) Kanban Just-in-Time (JIT) and configuration management.
  • Experience working with Product Lifecycle Management (PLM) systems such as Teamcenter or comparable platforms.
  • Strong understanding of Engineering Change Management and Product Lifecycle Management processes.
  • Advanced proficiency with Microsoft Office applications business intelligence tools and modern planning and data-visualization platforms.
  • Strong analytical skills with the ability to interpret complex operational data identify trends and risks develop insights and provide clear actionable recommendations.
  • Experience in aerospace defense electronics or another complex and highly regulated manufacturing environment is strongly preferred
  • Demonstrated management and leadership experience in planning supply chain operations manufacturing or a related field.
  • Comprehensive knowledge and experience in a relevant discipline along with a broad understanding of related business functions and their impact on planning and operational performance.
  • APICS certification such as Certified in Planning and Inventory Management (CPIM) Certified Supply Chain Professional (CSCP) or Certified in Logistics Transportation and Distribution (CLTD) or an equivalent industry-recognized certification an asset.
  • Certification in Lean Manufacturing Six Sigma Operational Excellence an asset.

Leadership Competencies

  • Proven leader with the ability to develop high-performing teams promote accountability and build effective cross-functional relationships.
  • Strategic and systems-oriented thinker who can connect planning and operational decisions to broader customer financial and business objectives.
  • Strong communication and influencing skills with the ability to engage effectively at all levels of the organization including executive leadership.
  • Excellent written verbal presentation meeting facilitation and executive reporting skills.
  • Strong organizational and prioritization skills with the ability to manage multiple initiatives and competing business demands.
  • Strong customer focus and demonstrated commitment to operational excellence and continuous improvement.
  • Ability to balance strong attention to detail with a strategic enterprise-wide perspective.
  • Ability to perform effectively in a fast-paced dynamic and complex manufacturing environment.

Education and Experience

  • Requires broad management and leadership knowledge to lead cross-department project teams or manage across the function.
  • Typically has mastery within a specific technical area or broad expertise across multiple related job areas.
  • Bachelors Degree with a minimum of 12 years of prior related experience.
  • Graduate Degree with a minimum of 10 years of prior related experience.
  • In lieu of a degree minimum of 16 years of prior related experience.

*This posting is for a current the province of Ontario Canada the pay range for this position will be $140000 to $190000

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Required Experience:

Manager


About Company

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At L3Harris, we anticipate and mitigate risk with agile end-to-end solutions that meet our customers' mission-critical needs across all domains.

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