Materials Planner; Onsite

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.

• Enable visibility to the impact of short‑and long‑term demand trends on materials and inventory; maintain records of inputs and rationale for changes.
• Review and recommend enhancements to Effective Material Planning (EMP) parameters and inventory entitlement policies.
• Maintain material policies (EMP/IE reviews) and drive optimal inventory levels for assigned commodities and sites.
• Conduct ABC strata reviews to ensure correct part classification and appropriate planning strategies.

• Provide materials planning parameter inputs to Master Data Planners (MRP types, MOQs, lot sizes, etc.).
• Support inventory forecasting, including input/output modeling and management of reason codes for inventory deviations (trapped, stranded, WIP, FG, raw material classifications).

• Track metrics, manage entitlement levels, and present inventory rollups with executive insights.
• Support excess and obsolete material reviews, analysis, and submission.
• Drive inventory variance reporting and lead problem‑solving activities.

• Partner with Supply Chain, Operations, SIOP/SIOE, Finance, Program Management, and site teams to meet inventory targets and ensure materials readiness.
• Support SIOP processes including supply reviews, pre‑executive reviews, site S&OE, and monthly tiered meetings.
• Drive escalation and scenario planning for disruptive events (e.g., supplier shortages, market disruptions, customer‑driven changes, strikes).

• Assist in process creation/modifications to improve inventory control, planning capabilities, and forecast accuracy.
• Eliminate process gaps, streamline cross‑functional handoffs, shorten cycle times, and improve overall inventory performance.

You Must Have

• Typically requires a University Degree and minimum 2 years of prior relevant experience or an Advanced Degree in a related field
• Proficiency in ERP/MRP systems.
• Strong analytical skills and ability to interpret complex data sets.
• Ability to work on‑site in Simpsonville, SC and collaborate with multiple Collins Aerospace locations.

We Prefer

• Experience in materials planning, inventory management, or supply chain functions.

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal,  protection
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• Adoption Assistance Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling…