Joanna Marquez
Oxnard
Summary
Results-driven procurement professional with over 6 years of experience in supply chain operations and inventory control. Managed full work order lifecycle to enhance scheduling efficiency and supplier collaboration, achieving cost savings and quality improvements. Leveraged data analysis and ERP systems to drive strategic purchasing decisions.
Overview
12
12
years of professional experience
Work History
Reliability Maintenance Engineer Buyer
Amazon
Oxnard
09.2023 - 11.2025
- Trained regional CMMS/EAM administrators and provided ongoing system support and troubleshooting.
- Maintained accurate asset, equipment, and inventory data, ensuring integrity across CMMS/EAM systems.
- Managed full work order lifecycle, improving efficiency in scheduling, tracking, and completion.
- Developed and implemented preventive maintenance (PM) plans, schedules, and workflows.
- Analyzed KPIs and operational data to identify trends, troubleshoot issues, and recommend process improvements.
- Supported procurement by creating requisitions, purchase orders, and receipts in EAM and Oracle systems.
- Monitored inventory levels, maintained spare parts data, and conducted cycle counts to ensure accuracy and cost control. Managed over 10k parts in store.
- Collaborated with cross-functional teams to reduce costs, improve supplier quality, and optimize materials management processes.
- Cross-trained with the planning team to provide support for the team.
Supply Chain Assistant/Production Planner
ZPower
Camarillo
09.2017 - 04.2020
- Maintained accurate inventory and spare parts data, ensuring up-to-date supplier details, pricing, and stock levels for efficient procurement.
- Monitored inventory levels and conducted cycle counts to ensure accuracy and reduce discrepancies.
- Collaborated with suppliers and internal teams to enhance part quality and identify cost-saving opportunities, contributing to overall cost management.
- Analyzed KPIs and operational data to support data-driven purchasing and inventory decisions.
- Supported procurement operations by creating and processing purchase requisitions, POs, and receipts in EAM and Oracle systems.
- Managed work orders and maintenance schedules to ensure proper planning and resource allocation.
- Trained staff on system workflows, facilitating process improvements across departments to streamline operations.
Grocery Buyer / Inventory Associate
Whole Foods Market
Oxnard
07.2013 - 10.2017
- Monitored inventory levels and replenished high-demand or seasonal items to maintain stock availability.
- Coordinated special orders with vendors, ensuring timely delivery of requested products to meet customer demand.
- Documented special orders, deliveries, and inventory adjustments, ensuring accuracy for effective inventory management.
- Maintain knowledge of organic, natural, and specialty products, including promotions and seasonal items.
- Stock shelves throughout the shift to keep aisles organized, visually appealing, and fully stocked.
- Provide exceptional customer service by assisting with product inquiries and recommendations.
- Collaborate with store team to execute promotions and maintain consistent product presentation.
- Ensured store cleanliness and safety by regularly sanitizing surfaces and organizing merchandise.
Education
A.S. - Natural Sciences
Oxnard College
Oxnard, CA11-2022
A.A. - Public Health
Oxnard College
Oxnard, CA06-2022
A.S. - General Science
Oxnard College
Oxnard, CA06-2022
Skills
- Reliability Engineering
- Maintenance Management
- Procurement support
- Purchase orders
- Continuous improvement
- Inventory control
- Inventory Control & Cycle Counts
- ERP systems
- Data analysis
- Continuous improvement
- Problem solving
- Inventory maintenance
- Vendor relations
- Maintenance Management
Languages
English
Professional
Spanish
Professional
Timeline
Reliability Maintenance Engineer Buyer
Amazon
09.2023 - 11.2025
Supply Chain Assistant/Production Planner
ZPower
09.2017 - 04.2020
Grocery Buyer / Inventory Associate
Whole Foods Market
07.2013 - 10.2017
A.S. - Natural Sciences
Oxnard College
A.A. - Public Health
Oxnard College
A.S. - General Science
Oxnard College