Summary
Overview
Work History
Education
Skills
Timeline
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Diana Matheis

Www.linkedin.com/in/diana-matheis ,ON

Summary

Supply chain management professional with over 15 years in retail, specializing in demand forecasting analytics, optimizing store operations, and fostering collaborative vendor partnerships. Dedicated to continuous skill development and peer mentorship, consistently driving performance with a strong sense of accountability. Currently overseeing a portfolio of more than 1,000 SKUs within a $200M+ annual business, representing nearly 40% of total divisional sales. Expertise spans ambient and temperature-controlled products, managing both direct-to-store and distribution center sourcing.

Overview

13
13
years of professional experience

Work History

Senior Demand Planner

Petsmart Canada
01.2023 - Current
  • Led strategic growth initiatives while executing all core responsibilities of a Demand Planner to drive business success.
  • Developed and implemented division-wide inventory strategies to optimize supply chain efficiency and ensure product availability.
  • Standardized operations by documenting and promoting Standard Operating Procedures (SOPs) to enhance consistency and best practices.
  • Created and executed inventory management plans aligned with corporate strategy to support sales and operational goals.
  • Served as the primary liaison between vendors, distribution centers (DCs), and internal teams, ensuring smooth order flow and proactive issue resolution.
  • Partnered with store operations teams to provide inventory support, improving stock availability and minimizing disruptions.
  • Drove process improvements by engaging with teams, adapting to new strategies, and enhancing overall operational efficiency.

Demand Planner

PetSmart Canada
08.2018 - 01.2023
  • Maximized product availability by driving Store In-Stock and Fill Rate KPI achievements, ensuring optimal inventory levels.
  • Managed end-to-end procurement by creating, tracking, and executing Purchase Orders for seamless inventory flow.
  • Conducted data-driven demand forecasting to align stock levels with sales and margin targets, minimizing stockouts and overages.
  • Optimized inventory turnover to enhance profitability and reduce excess stock, improving overall supply chain efficiency.
  • Ensured accurate inventory distribution across distribution centers to support store sales demand and promotional merchandising strategies.
  • Utilized advanced demand planning systems to analyze forecasts and leverage key inventory management tools for data-driven decision-making.
  • Collaborated cross-functionally with buying, planning, store operations, supply chain, and vendors to drive sales, margin, and inventory success.

Lead Buyer

Bunn-O-Mattic Corporation of Canada
02.2015 - 08.2018
  • Led procurement operations for global and domestic product sourcing, ensuring efficient supply chain management and cost optimization.
  • Managed inventory control by reconciling receiving discrepancies and maintaining accurate stock levels.
  • Implemented cost reduction strategies, optimizing supplier contracts and procurement processes to enhance profitability.
  • Oversaw logistics management, coordinating inbound and outbound shipments to streamline supply chain efficiency.
  • Evaluated supplier performance, ensuring quality, reliability, and alignment with business objectives.
  • Managed three purchasing portfolios with a combined annual spend of $15M, overseeing more than 130 supplier relationships and 2,500 SKUs.

Merchandising Assistant

Toys"R"Us Canada
08.2014 - 10.2014

Partner Development Analyst

Inscape Corporation
03.2013 - 04.2014

Merchandise Analyst

Best Buy Canada Ltd.
07.2012 - 02.2013

Education

Business Admin - Marketing Diploma

Seneca College of Applied Arts And Technology
01-2011

Supply Chain Management Certificate
Supply Chain Management Association

Skills

  • Strategic Leadership & Stakeholder Engagement – Proven ability to influence and align cross-functional teams at all levels, driving collaboration and business success
  • Results-Driven Decision Maker – Strong track record of delivering high-impact business results in dynamic environments, generating innovative solutions to complex challenges
  • High-Performance Team Development – Skilled in building, coaching, and leading collaborative teams, continuously elevating individual and overall team performance in evolving business landscapes
  • Exceptional Organizational Agility – Detail-oriented and highly organized, adept at prioritizing tasks, meeting tight deadlines, and maintaining quality work while seamlessly adapting to shifting priorities
  • Solution-Oriented Problem Solver – Strong analytical mindset with a focus on continuous improvement, operational efficiency, and data-driven decision-making
  • Supply Chain & Inventory Management Expertise – Deep knowledge of inventory modeling, demand planning, and supply chain optimization, with hands-on experience in advanced forecasting methodologies and analytics
  • Technical Proficiency – Advanced expertise in SAP, MicroStrategy, RELEX, PAW, Microsoft Office, Microsoft Dynamics CRM, and Windows Operating Systems, leveraging data tools to drive business insights and operational excellence

Timeline

Senior Demand Planner

Petsmart Canada
01.2023 - Current

Demand Planner

PetSmart Canada
08.2018 - 01.2023

Lead Buyer

Bunn-O-Mattic Corporation of Canada
02.2015 - 08.2018

Merchandising Assistant

Toys"R"Us Canada
08.2014 - 10.2014

Partner Development Analyst

Inscape Corporation
03.2013 - 04.2014

Merchandise Analyst

Best Buy Canada Ltd.
07.2012 - 02.2013

Business Admin - Marketing Diploma

Seneca College of Applied Arts And Technology

Supply Chain Management Certificate

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