Sr Manager, Sales, Inventory and Operations Planning

Sierra Space•Centennial, CO

1d•$131,636 - $181,021

About The Position

The Senior Manager, SI&OP will support the execution of integrated planning processes that connect customer demand, supply and capacity, program execution, and financial outcomes. This role will implement and optimize SI&OP processes across demand forecasting, inventory management, workforce planning, and supply planning to support efficient, scalable operations. This role coordinates cross-functional activities to align sales forecasts with production capabilities and inventory strategies, ensuring on-time delivery of spacecraft and subsystems products while optimizing cost, capacity, and working capital. The Senior Manager will facilitate collaboration across Business Development, Operations, Supply Chain, Finance, and Program Management to enable predictable execution in a dynamic, high-growth environment.

Requirements

Bachelor's degree in Finance, Business Administration, Supply Chain, or a related field
10+ years of experience in business operations, program planning, supply chain, or related fields, with at least 5+ years in roles with cross-functional coordination or team leadership responsibilities
Experience with SI&OP or integrated planning processes
3-5 years of experience with SI&OP
Strong knowledge in one or more of the following: financial planning & analysis, program/operations planning, supply chain management, or business analytics
Strong analytical and problem-solving skills
Demonstrated ability to lead through influence, build relationships, and drive cross-functional alignment
Experience with change management, process improvement, and stakeholder engagement
Proven skills in communication, presentation, conflict resolution, and time management
Working knowledge of budget preparation, cost control, and resource planning
Strong communication skills with the ability to adapt messaging to different audiences
Ability to collaborate effectively across functions and organizational levels
Working knowledge of CRM/ERP/MRP/FP&A systems; understanding of capacity planning, constraints management, and inventory strategies
Experience supporting organizational process adoption and improvement initiatives
U.S. citizenship with the ability to obtain/maintain a security clearance

Nice To Haves

Background in the Aerospace and Defense industry, US Department of Defense, NASA/Civil space, or commercial space sectors
Familiarity with financial forecasting, EACs, and program reviews
Experience with advanced planning tools and business intelligence platforms

Responsibilities

Implement SI&OP processes and tools tailored to Sierra Space's business needs in the satellite, spacecraft, and subsystems sectors
Coordinate cross-functional planning activities—working with Programs, Operations, Supply Chain, Finance, and Business Development to maintain an integrated and dynamic plan
Support scenario planning, trade-off analysis, and capacity/inventory strategies that enable agile response to changing conditions
Track and analyze SI&OP performance metrics, identify improvement opportunities, and implement process enhancements to optimize operational efficiency
Maintain integrated planning data from CRM, ERP, MRP, FP&A, and operations systems to support decision-making
Develop and maintain dashboards and reports that provide clear visibility into planning metrics and trends
Support the adoption of digital planning tools and analytics capabilities
Analyze data sets to provide insights and recommendations to leadership, supporting operational improvements
Execute SI&OP planning standards, cadences, and processes to ensure consistency and discipline
Facilitate planning meetings and forums that align supply, demand, and financial perspectives
Monitor adherence to planning processes and report on performance metrics
Drive adoption of SI&OP processes across functional teams and programs
Develop training materials, process documentation, and best practices to support process adoption
Coach team members and stakeholders on SI&OP methodologies and tools
Build cross-functional relationships that support planning effectiveness
Ensure SI&OP outputs are translated into master schedules, materials planning, and program execution plans
Support planning for new program introductions, proposals, and long-lead procurement decisions
Coordinate with stakeholders on capacity, resource, and inventory planning decisions