Materials Planner (Onsite)
RTXDate Posted: 2026-09-21

 Country: United States of America

 Location: US-CA-SAN DIMAS-936 ~ 936-960 Overland Ct ~ OVERLAND

 Position Role Type: Onsite

 U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

 Security Clearance Type: None/Not Required

 Security Clearance Status: Not Required 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. Join us and help shape the future of aerospace and defense. This role will be working onsite in San Dimas, California. What You Will Do: Cross-collaborate to review inventory trends, drive actions to meet targets, and develop Material Planning (MP) parameters utilizing EMP/IE standards and enterprise policies. Provide MP parameter inputs to Master Data Planners including MRP types, minimum order quantities, and lot sizes. Support inventory forecasting, inclusive of input/output models and reason codes for inventory inaccuracy across Raw Materials, WIP, and Finished Goods. Manage entitlement levels, present inventory rollups and executive insights, and generate KPI analyses. Drive continuous improvement by eliminating process gaps, enhancing forecast accuracy, shortening cycle times, and strengthening cross-functional handoffs. Track performance against financial plans and provide inventory inputs to the SIOP process. Manage forecasting for production-planned purchased parts and planning strategies including special stock and Non-Conforming Material oversight. Review Shelf Life Expiration reports and drive action on items at risk. Assess ECN (Engineering Change Notice) effectivity by checking whether changes to materials or assemblies are captured, and identify what actions current inventory requires as a result. Assist Program Management with CBOM proposals by confirming inventory availability. Support Engineering with GIDEP part searches and usage/PO lookups during obsolescence reviews. Support the coordination and execution of the Sales, Inventory, and Operations Planning (SIOP) process, ensuring alignment between operational capability, inventory levels, and business goals. Analyze inventory trends, consumption data, and planning parameters. Travel up to 10%. What You Will Learn: How market trends and demand shifts affect material and inventory strategies. Advanced forecasting models including PIR oversight and scenario planning. EMP and IE policy application and refinement. PFEP development and inventory variance root-cause identification. Financial alignment through E&O review, reserve support, and inventory clinics. How materials planning integrates into end-to-end SIOP processes driving demand, supply, production, and financial outcomes. Qualifications You Must Have: Typically requires a University Degree and minimum 2 years of prior relevant experience or an Advanced Degree in a related field Experience in material planning, supply chain, or inventory control. Working experience of SAP MRP parameters and planning strategies. Must have a track record of clear communication and successful collaboration with cross-functional partners. Proficiency with Excel and reporting tools such as Tableau or Power BI. Qualification…