Mariah Willkomm
Summary
Demonstrates strong analytical, communication, and teamwork skills, with proven ability to quickly adapt to new environments. Eager to contribute to team success and further develop professional skills. Brings positive attitude and commitment to continuous learning and growth.
Overview
15
15
years of professional experience
Work History
Buyer/Purchasing
Contractors Wardrobe(OneCruit)
10.2025 - 11.2025
- Developed and maintained vendor relationships to optimize supply chain efficiency and quality standards.
- Managed inventory levels of office supplies and ensure product was always available
- Processed purchase orders for shower doors, glass, wood, screws, skins, all used to produce closet doors, glass for buildings, bolts, knobs, etc using Epicor- E10 efficiently to ensure timely procurement of necessary supplies and equipment.
- Keep stock room updated on the arrival/delivery times as well.
- Enhanced accuracy in stock levels and minimizing excess or shortages maintaining the AMU of 3-6mos.
- Ensured timely delivery of products by closely monitoring vendor performance and addressing any issues promptly.
- Contact vendors via email/phone ensuring product needed was available, would than send out PO to vendors as well as ensuring; product qty was correct, whether or not tax was needed, ship via was accurate, pricing was correct and terms and conditions were accurate as well for different vendors.
- Built relationship with vendors to establish quality and competitive pricing
- Reduced procurement costs through cost comparison for new price given vs old price given, determining how much the company would save; as well as finding other vendors product could be purchased for cost savings
- Create POs for different items production, engineering may need not called for on daily Purchase Order Suggestions
- Receive incoming parts that were purchased, send out copy to accounts payable with invoice attached.
- Keep up to date on emails and prioritize the work day with what was more needed at the time, as well as getting the remainder of my job done.
- Researched and identified new suppliers and vendors.
Manufacturing Planner / Purchasing Support
Lockheed Martin
01.2024 - 06.2024
- Managed the procurement of tools and materials using CribMaster and SAP to ensure timely availability aligned with production schedules.
- Utilized SAP to reconcile procurement card purchases, verify PO costs, and ensure accurate invoice matching.
- Regularly communicated with suppliers via email and phone to follow up on purchase orders, request updates, and resolve delivery issues.
- Tracked and updated vendor promise dates, monitored AMUs (Average Monthly Usage), and adjusted Min/Max inventory levels in CribMaster.
- Filed and organized POs and invoices, maintaining detailed logs for audit readiness.
- Supported 'hot' tool substitutions and escalated urgent material needs with internal teams and vendors.
- Assisted with reporting and project tracking using Tableau and Excel.
- Participated in virtual and on-site chair status meetings to update leadership on procurement progress and potential risks.
Material Expeditor
Honeywell Aerospace (via KBR)
09.2022 - 09.2023
- Coordinated the flow of repair units and assemblies through multiple departments, ensuring minimal cycle time and efficient production schedules.
- Performed extensive SAP T-Code operations, including: ZIWBN: Verified service orders, confirmed parts staging; MMBE: Reviewed real-time stock quantities and availability; MIGO: Executed goods movements and stock placements; LT24, LT12, LB01: Created and confirmed transfer orders.
- Worked cross-functionally with Material Management, Production, and QA teams to meet daily shipping and material goals.
- Provided end-of-day inventory and movement reports using Excel and Outlook.
Receiving Clerk
Herber Aircraft (via Aerotek)
06.2022 - 08.2022
- Received and inspected aerospace parts, verifying certifications and paperwork matched physical items.
- Used Oracle to receive parts and update inventory records.
- Measured and documented FAA-regulated materials, including rubber hoses with specific shelf-life requirements.
Caretaker
In Home Supportive Services
08.2016 - 05.2021
- Provided in-home care for clients including cleaning, cooking, bathing, clothing, errands, transportation to appointments, paying bills, assisting with completing paperwork, and other miscellaneous duties.
Office Clerk & Administrative Support
Direct Digital Systems
01.2015 - 12.2016
- Supported purchasing team by preparing invoices, managing vendor communications, and entering order data in spreadsheets.
- Handled customer service phone calls, emails, and office document filing.
Packaging, Shipping, and Receiving Clerk
Crissair, Inc.
09.2010 - 03.2014
- Conducted receiving inspections for aircraft parts, confirmed accuracy of materials, and updated ERP systems with stock and shipment data.
- Prepared domestic and international shipments, including SLIs and compliance documentation.
- Collaborated with stockroom and procurement to manage inventory counts and stock control.
Education
High School Diploma -
Quartz Hill High School
Quartz Hill, CA05-2009
Skills
- Interpersonal skills
- FedEx/UPS shipping tools
- Vendor communication
- Administrative experience
- Attention to detail
- SAP
- MRP
- ERP systems
- Phone etiquette
- Purchase Orders
- Cost Control
- CribMaster
- Vendor relations
- Logistics
- Procurement
- Purchasing
- Communication: Vendor calls, supplier follow-ups, interdepartmental coordination
- Typing
- Oracle
- Computer literacy
- Order tracking
- Computer skills
- Microsoft Outlook
- Forecasting
- Office experience
- Customer service
- Organizational skills
- Time management
- Written communication
- Expediting Orders & On-Time Delivery
- Shipping & receiving
Timeline
Buyer/Purchasing
Contractors Wardrobe(OneCruit)
10.2025 - 11.2025
Manufacturing Planner / Purchasing Support
Lockheed Martin
01.2024 - 06.2024
Material Expeditor
Honeywell Aerospace (via KBR)
09.2022 - 09.2023
Receiving Clerk
Herber Aircraft (via Aerotek)
06.2022 - 08.2022
Caretaker
In Home Supportive Services
08.2016 - 05.2021
Office Clerk & Administrative Support
Direct Digital Systems
01.2015 - 12.2016
Packaging, Shipping, and Receiving Clerk
Crissair, Inc.
09.2010 - 03.2014
High School Diploma -
Quartz Hill High School