
Bill Zimmerman
Purchasing Agent

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About me
Start-Up & Maintenance Planning Specialist - Retired - Hemlock Semiconductor Operations
Education

Midland High School
1980 - 1983High School Accounting and Business/Management
Delta College
2021 -Business Administration and Management, GeneralStarted Business Management studies in 2021 towards an Associate Degree in Business Management.
Experience

Harrison Piping Supply Company
Sept 1985 - Oct 1996Purchasing AgentManaged inventory of 4000+ items at a value of $4.7 MM, in support of local/state PVF and Instrumentation sectors.Responsible for monitoring inventory levels to maintain optimum fill rate to meet customer need dates. Negotiated with suppliers to achieve maximum value through long term pricing agreements. Organized annual physical inventory and the re-setting of warehouse item locations to produce a more efficient layout for day to day business and inventory activities.-Company lead in the beta testing of Dow Chemical/GE Information Services EDI Purchasing Program. -Company representative with Ford Motor Company in developing global descriptions for their stock systems piping and fittings commodities. Show less

Hemlock Semiconductor Corporation
Oct 1996 - Oct 2000Production Crewleader/OperatorLeader of five production support personnel in the safe operation of a production building.Coordinated product unloading, equipment set up, maintenance activities, equipment start up and shut down, equipment maintenance preparation and shutdown work needs.Performed operator reviews and training.

Dow Corning
Oct 2000 - Oct 2007Using SAP Procurement Module and Ariba Spend Management programs, to cost effectively procure material within the categories of PVF, Instrumentation, Metal Shapes, Bulk Gases, Fasteners and Gaskets, to meet necessary timelines for expense and capital expenditures.Job scope included finding and qualifing new vendors and materials to aid in minimizing "Single Sourcing" creating more competitive pricing and reduce the chance of material outages. Worked with qualified vendors to achieve long term cost effective pricing agreements to gain stable material availability at lowest cost possible. Also perform the role of North American E-Catalog Administrator by maintaining vendors, pricing and materials available through this procurement system. Created training program for Procurement Requisition Entry for the Dow Corning University online training system. Show less
Commodity Buyer / US E-Catalog Administrator
Oct 2005 - Oct 2007Process Engineering Laboratory Technician
Oct 2000 - Oct 2005

Hemlock Semiconductor
Oct 2007 - nowWork with Project, Commissioning, and Start-Up teams on a large-scale process upgrade. - Leading a $17 MM CUI Inspection and Remediation Project - Working with project EPC firms by providing information on "surplus" material that can be used on the project to reduce overall cost. - Providing guidance on piping specification to EPC firms. - Lead for new equipment spare parts identification. Includes creation of new material number and BOM creation and/or updates. - Lead in communication with company Business Process Specialist in the creation and deletions of Function Locations and Equipment Numbers. - Lead in communication with accounting for asset number creation and deletions. Show less Using SAP PM Module and Procurement Module, plan weekly maintenance and annual TAR activities for multiple plant operation areas to be executed efficiently maximizing equipment online time. Duties include creation of Maintenance Work Order from Maintenance Notification entered by area operation personnel and engineering that efficiently utilize the maintenance personnel by having the right people, support equipment and parts to execute within allotted time scheduled.- SME and Team Member of "Work Notification Quality Improvement" project. When completed, the project delivered efficiencies that allowed for faster turnaround and completion of Maintenance Request. - Representative SME of Maintenance Planning & Scheduling for company's change over to SAP S4 Hana. Show less Using SAP PM Module and Procurement Module, plan weekly maintenance and annual TAR activities for multiple plant operation areas to be executed efficiently maximizing equipment online time. Duties include creation of Maintenance Work Order from Maintenance Notification entered by area operation personnel and engineering that efficiently utilize the maintenance personnel by having the right people, support equipment and parts to execute within allotted time scheduled. Projects Completed for Maintenance Planning & Scheduling Improvements - Recycled Work Order Project. Implemented the use of an SAP User Status Code to be able to flag work order that were not able to be completed as scheduled. The flagging allows for a timelier and efficient flow in placing this work back in the scheduling queue to be completed. - Maintenance Work Order Workflow Revision. Completed a total revision of Maintenance Workflow using Six Sigma DMAIC methodology. Show less Using SAP PM and Procurement Module, efficiently and effectively coordinate plant operations, weekly and disruptive maintenance as well as annual TAR activities- Operation representative during area process design stages working with plant engineering as well as third party EPC firms.- Operation lead representative during construction phase of process areas. - Operation lead during new process start-up.- Coordinated maintenance for area of responsibility.- Procure needed supplies for area maintenance and operations activities- Direct operation support personnel in area equipment troubleshooting and maintenance preparation. - Serve as area Subject Matter Expert for quality, production, efficiency improvement projects.- Champion area safety compliance to documented processes and procedures.- Received MEGO Excellent Award for Process Area Start-Up using LEAN Show less
Start-Up Planning Specialist (Contractor)
Aug 2022 - nowMaintenance Planning Specialist
Aug 2019 - Jul 2022Senior Maintenance Planner
Sept 2013 - Aug 2019Manufacturing Technician - Finishing Area
Jul 2013 - Sept 2013Manufacturing Technician - DPHOST Area
Oct 2007 - Jul 2013
Licenses & Certifications

Six Sigma Green Belt

Six Sigma LEAN Practitioner
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