Seller Account Manager, Marketplace

Manitoba
The Dufresne Group Home Office
147 Commerce Drive
Winnipeg, MB , CAN

The Dufresne Group is currently seeking a Seller Account Manager, Marketplace to join our E-commerce Team. This role will be based in Winnipeg at our Home Office at 147 Commerce Drive, or remotely within Canada.

The Seller Account Manager (SAM) is responsible for driving the ongoing success of TDG marketplace sellers by optimizing their performance, expanding their commercial potential, and ensuring they deliver a high‑quality experience to TDG customers. This role will support both marketplace sellers and drop ship vendors, ensuring each meets TDG operational SLAs, catalog accuracy requirements, and customer experience standards.

The SAM manages a portfolio of sellers supporting them across business, operational, and technical topics to maintain an accurate and competitive catalogue, identify revenue‑driving opportunities, and ensure compliance with TDG standards.

This role plays a key part in strengthening seller relationships, growing category sales, and contributing to the overall health and strategy of the marketplace.

• Market competitive wages;
• Comprehensive benefits plan and excellent employee discounts;
• Employer‑Sponsored Retirement Savings Plan;
• Career growth and continuous development;
• Respectful and family‑oriented working environment with strong company values;
• The opportunity to work for one of Canada’s Best Managed Companies.

• Manage a large portfolio of sellers in different markets and categories
• Identify and grow opportunities within categories
• Develop strategic seller accounts and build strong relationships
• Ensure sellers keep their catalogue updated and incorporate sellers’ products into promotional activities
• Support drop ship vendors with operational troubleshooting, fulfillment performance, and catalog accuracy
• Proactively reach out to sellers on a regular basis and respond quickly to any incoming inquiries
• Conduct deep‑dive performance analysis for each seller and share strategic recommendations to maximize sales growth and improve customer satisfaction
• Monitor drop ship KPIs (ship‑complete rate, routing compliance, cancellations) and work with operations to address gaps
• Act as the conduit between customer service team and sellers
• Work closely with supply chain/operations teams to resolve vendor fulfillment or routing issues for drop ship
• Understand the unique needs of each seller and share personalized support
• Have a deep understanding of seller on-boarding and the marketplace platform
• Demonstrates the company’s values in all aspects of their work performance

• 3–5 years of experience in ecommerce, marketplace operations, account management, vendor management, or merchant success
• Previous experience in marketplace a plus
• Experience managing a book of business and driving commercial results (GMV, revenue, margin, or operational KPIs)
• Experience working with sellers, brands, or retailers on catalog quality, operational troubleshooting, or performance analytics
• Familiarity with ecommerce platforms (e.g., Mirakl, Shopify, Amazon Seller Central) is an asset
• Strong analytical skills with experience using dashboards or performance tools (Excel, Looker, Power
  
  BI, etc.)
• Bachelor’s degree in Business, Marketing, Retail Management, Commerce, or a related field
• Combination of education and experience will be considered
• Strong communication and relationship‑building skills
• Analytical mindset with ability to interpret performance data
• Problem‑solving abilities across operational and technical issues
• Organized and detail‑oriented, able to manage multiple seller priorities
• Proactive, resourceful, and adaptable in a fast‑paced environment
• Ability to influence without authority and guide sellers toward best practices
• Driver’s License Required.
• A satisfactory Criminal Record Check may be required