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Sr. Manager, SIOP (Demand Planning Transformation)


Job Location:

Richardson, TX - USA

Monthly Salary: $ 139000 - 182700
Posted: 29 July 2026 (30+ days ago)
Application Deadline: 26 October 2026
Vacancies: 1 Vacancy

Job Summary

What Drives Success

Role Summary:

((Demand Planning Transformation))

Lead the Demand Planning transformation initiative within SAP IBP driving process standardization forecast accuracy improvements and adoption of advanced planning and AI-enabled forecasting capabilities across the organization. Partner with business leaders Supply Chain Sales Marketing Finance and IT teams to design implement and sustain best-in-class demand planning processes that improve forecast reliability inventory productivity service levels and business performance.

This role will serve as the primary owner for Demand Planning process design SAP IBP optimization forecasting strategy governance analytics and change management within an Integrated Business Planning (IBP) environment. The successful candidate will leverage statistical forecasting machine learning AI-driven demand sensing and predictive analytics to enhance forecast accuracy identify demand risks and opportunities and support data-driven decision-making. Combining strong planning expertise SAP IBP knowledge advanced analytics skills and cross-functional leadership this individual will drive digital transformation and deliver measurable business value through continuous improvement and intelligent planning capabilities.

The Sr. Manager SIOP for the Lennox Residential HVAC business leads the end-to-end process that aligns sales forecasts inventory and production capacity to optimize inventory levels meet customer demand and drive operational efficiency. This cross-functional role balances demand and supply ensuring the organization operates on a unified plan. This role reports to the Home Comfort Solutions SIOP team and works closely with the LRH Leadership Team.

Core Responsibilities

  • Lead and execute the SIOP process: Facilitate monthly cycles including demand review supply planning and executive consensus meetings.
  • Demand & inventory planning: Generate and monitor forecasts adjust safety stocks and evaluate forecast performance.
  • Supply alignment: Assess production and purchasing needs based on demand adjusting schedules and material availability accordingly.
  • Cross-functional collaboration: Work closely with sales marketing production purchasing and finance to ensure forecasts and operational plans are accurate and aligned.
  • Meeting facilitation & coordination: Lead SIOP meetings manage agendas document action items and ensure follow-through across functions.
  • Data integrity & reporting: Maintain accurate data within ERP/MRP systems track KPIs (forecast accuracy inventory levels on-time delivery) and drive continuous process improvement.
  • Change agent: Champion process standardization system enhancements and operational improvements.

Typical Workday & Environment

  • A dynamic mix of meetings with sales production purchasing and finance teams to update forecasts and resolve gaps.
  • Office-based with some on-site time in manufacturing or ; up to 10% travel may be required.
  • Interaction with global/regional stakeholders possibly across multiple time zones.

Desired Outcomes:

  • Improved forecast accuracy and inventory optimization.
  • Enhanced service levels and on-time delivery.
  • Reduced waste lower carrying costs and improved capacity utilization.
  • Streamlined SIOP/S&OP practices and stronger cross-functional alignment.
What We Are Looking For

Key Qualifications & Skills

  • Education: Bachelors degree in Supply Chain Operations Business or related field; MBA/advanced degree preferred.
  • Experience: 510 years in SIOP/S&OP integrated demand-supply planning and inventory optimization roles.
  • Technical expertise:
    • Proficiency with ERP/MRP systems (e.g. SAP APO IBP) advanced Excel statistical forecasting and analytics tools.
    • Strong understanding of demand planning capacity modeling inventory management and network optimization.
  • Analytical & problem-solving: Capable of dissecting forecasts vs. actuals developing simulations and formulating cost-effective strategies.
  • Communication & leadership: Ability to lead and influence across functions manage multi-stakeholder meetings foster consensus and guide change initiatives.
  • Soft skills:
    • Strong interpersonal and organizational skills
    • Strategic and tactical thinking
    • Facilitator mindset with comfort moderating complex discussions.
What We Offer

Compensation: This is a salaried exempt role. The starting salary range for this role and market is between $139200-$182700annually. Factors that may affect starting salary include geography/market and the skills education experience and other qualifications of the successful candidate. Employees in this role are also eligible for an annual bonus in accordance with the terms of the Companys applicable plan. Employees in this role are not eligible for overtime.

Benefits:Subject to applicable eligibility requirements the following benefits are offered for this role: tuition reimbursement; medical dental and vision insurance; prescription drug coverage; 401(k) retirement plan; short-term disability insurance; 8 weeks paid birthing leave; 2 weeks paid bonding leave; life and long-term disability insurance.

Depending on date of hire and subject to applicable eligibility requirements new employees in this role also receive up to: 12 days paid time off 2 paid well-being days 1 paid volunteer day 12 paid holidays and 3 floating holidays per year.

Our Culture: At Lennox our Core Values of Integrity Respect & Excellence are ingrained in the fabric of the organization. They define our culture which is about how we do business and how we treat others. Lennox is not just a workplace; we are a global community that values each team members contributions. As an equal opportunity employer we are committed to recruit develop and retain talented individuals from a wide range of backgrounds ensuring that everyone has the opportunity to succeed and contribute to our continued growth and success. At Lennox youll take pride in our brands knowing you are part of something special. Come stay and grow with us!

Disclaimers:The compensation and benefits information is accurate as of the date of this posting. Lennox reserves the right to modify this information at any time with or without notice subject to applicable law.

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Required Experience:

Manager