Senior Manager, Schedule Integration (SIOP Lead)

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Senior Manager, Schedule Integration Job Code: 42978 Job Location: Mason, OH and/or Cincinnati, OH Job Schedule: 4/10: Employees work 10 hour days, 4 days a week   Job Description: We are seeking a Sr. Manager, Schedule Integration (SIOP Lead) to join our Scheduling & Material Planning (SMP) functional Center of Excellence at our Mason, Ohio facility leading SIOP for the Advance Effects Sector. In this leadership role, you will be responsible for driving the strategic direction, execution, and continuous improvement of demand planning, master scheduling, and Repair & Overhaul (R&O) planning processes across the site. The Sr. Manager will lead the integration of demand signals from multiple sources, ensure alignment between factory production schedules and program objectives, and provide leadership for Sales, Inventory and Operations Planning (SIOP) activities. This role will serve as a key cross-functional leader, partnering with Business Development, Program Management, Engineering, Operations, and Supply Chain to establish scalable planning processes, improve schedule performance, and enable executive decision-making. The ideal candidate is a strong people and process leader who can operate effectively in a dynamic manufacturing environment, influence across organizational boundaries, and balance tactical execution with long-term strategic planning. This individual will be expected to build organizational capability, lead change, and drive planning excellence through data-driven insights, strong business acumen, and a collaborative leadership style.   Essential Functions: Lead the site’s demand planning and master scheduling strategy, ensuring alignment with business objectives, customer commitments, and program deliverables. Provide leadership and oversight for the development and maintenance of accurate demand plans across an 18–24 month rolling horizon. Direct the consolidation and analysis of demand inputs from multiple sources, including Sales Orders, Forecasts, Follow-On production, Repair & Overhaul (R&O), and Engineering IRAD activities. Ensure alignment between factory master schedules and program Integrated Master Schedule (IMS) milestones, proactively identifying risks and driving mitigation plans. Lead and facilitate SIOP processes and reviews, enabling cross-functional alignment on demand, supply, capacity, and execution priorities. Partner with Operations, Supply Chain, Program Management, Engineering, and Business Development leaders to evaluate future demand scenarios and translate requirements into executable plans. Establish, monitor, and improve key performance indicators, dashboards, and reporting tools related to forecasting accuracy, demand planning, schedule attainment, and SIOP effectiveness. Drive gap identification, root cause analysis, and resolution of planning and scheduling issues through cross-functional collaboration and escalation as needed. Present planning insights, risks, opportunities, and recommendations to senior and executive leadership to support informed decision-making. Lead, mentor, and develop team members, fostering a culture of accountability, collaboration, continuous improvement, and planning excellence. Serve as a change leader for