Principal Specialist, Demand Planner (Onsite)
Quick Summary
Develop and maintain a minimum 36-month rolling demand plan as part of the SIOP process.
Must be authorized to work in the U.S. without the company’s immigration sponsorship now or in the future. The company will not offer immigration sponsorship for this position.
Requirements
~1 min read- A University Degree or equivalent experience and minimum 5 years of prior relevant experience, or an Advanced Degree in a related field and minimum 3 years of prior relevant experience.
- Experience in demand planning, forecasting, supply chain planning, or a related field.
- Experience using Microsoft Office applications, including Word, Excel, and PowerPoint.
- Experience collaborating with internal and external customers and cross-functional teams.
- Experience managing multiple priorities, organizing work effectively, and adapting to changing business requirements.
- Experience participating in the SIOP process within a large global industrial or manufacturing organization.
- APICS certification, such as CPIM or CSCP.
- Experience with Kinaxis Rapid Response demand planning tools.
- Experience with SAP, including ERP, APO, and/or Business Intelligence systems.
- Experience with statistical forecasting, demand analysis, inventory optimization, and supply-demand scenario planning.
At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.
Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market.
We are seeking a Principal Specialist, Demand Planner to develop, coordinate, and align demand plans that support customer commitments, operational performance, and inventory objectives. In this role, you will collaborate with Product and Program Management, Business Development, Finance, Supply Chain, Operations, and customers to improve demand accuracy, align demand with supply capabilities, and support the Sales, Inventory, and Operations Planning (SIOP) process.
Your mission is to develop and maintain a minimum 36-month rolling demand plan, improve forecast accuracy, identify risks and opportunities, and provide data-driven insights that support revenue, inventory, and gross margin objectives.
Join us in supporting the future of aerospace through world-class demand planning and supply chain operations!
Responsibilities
~1 min read- →Develop and maintain a minimum 36-month rolling demand plan as part of the SIOP process.
- →Develop statistical forecasts for applicable products and measure demand error to improve forecast accuracy and minimize variation.
- →Aggregate demand plans into value stream families and align stability zones and time fences with business requirements.
- →Facilitate monthly demand reviews and participate in SIOP meetings to align demand and supply across the organization.
- →Partner with Finance to ensure unit-level demand plans translate into accurate and credible financial plans.
- →Ensure demand is accurately entered and maintained in ERP systems and aligned with aggregate demand plans.
- →Communicate detailed and aggregate demand plans, including key assumptions, risks, opportunities, and changes in demand.
- →Collaborate with Supply Chain and Operations teams to understand supply constraints and opportunities and align demand with available capacity.
- →Prioritize existing orders and perform scenario analyses using quantitative and qualitative data to identify opportunities to improve revenue, inventory, and gross margin.
- →Partner with internal and external customers, Product and Program Management, and Business Development to continuously improve demand visibility, planning accuracy, and customer delivery performance.
Click on this link to read the Policy and Terms
What We Offer
~1 min read
The next chapter of our future as an aerospace company is here, and we are excited about what this means for our employees and customers! Get onboard the Collins Aerospace Operations team and play a part in managing our innovative products from inception to delivery. The Operations team continues to grow and aims to strengthen the connection of Manufacturing Operations, Supply Chain and Environment, Health & Safety (EH&S) across Collins Aerospace. In this dynamic environment, you will have the opportunity to network across our businesses and functions, all while improving the productivity, quality and efficiency of our operations worldwide.
Collins Aerospace, a RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market.
*Please ensure the role type (defined below) is appropriate for your needs before applying to this role.
Location & Eligibility
About this job
- Who can apply
- United States
- Posted
- 1 day ago
Listing Details
- Posted
- October 22, 2026
- First seen
- October 22, 2026
- Last seen
- October 22, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 56%
- Scored at
- October 23, 2026
Signal breakdown
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