Leif Madsen

About Leif Madsen

Marketplace & Recommerce Leader with 13+ years at Amazon, specializing in category expansion, operational excellence, and AI-enabled mechanisms. I’ve led and scaled nine-figure to billion-dollar programs, built durable operational systems, and improved customer, seller, and quality performance across complex marketplace ecosystems.Across Amazon, I owned end-to-end strategy and operations for major categories within Renewed and Emerging Businesses—driving meaningful quality improvement, improving defect rates through structured mechanisms, and strengthening seller and catalog performance at scale. I built diagnostic frameworks, quality governance models, onboarding pathways, and AI-assisted troubleshooting tools that accelerated issue resolution and reduced manual operational load across global teams.I’m known for bringing clarity to ambiguity: aligning cross-functional partners across Product, Ops, Finance, CX, and Compliance, translating analytical signals into executable mechanisms, and consistently delivering measurable operational lift across large seller cohorts.Following Amazon, I’ve supported a selective set of marketplace partners across Amazon, Best Buy, Walmart, and Back Market through interim advisory work. I apply Amazon-grade operational mechanisms and generative-AI analysis to strengthen catalog integrity, quality, and selection expansion while evaluating long-term senior leadership opportunities.My philosophy: build mechanisms that scale, remove friction, and drive durable results.

Experience

1. Senior Strategic Customer Success Manager - Amazon Renewed

   Amazon

   Jan 2018 — Present · Seattle, WA, US

   I lead the Strategic Account Services (SAS) enhancement program, driving multi-million dollar growth through AI-powered support infrastructure and streamlined account management processes. I also own category expansion initiatives and am spearheading the development of AI-powered knowledge management systems to transform operational efficiency and strategic planning. Previously, I led worldwide mass account management strategy, successfully scaling the program across international markets while achieving significant improvements in seller engagement metrics, and led the strategic growth of Amazon\'s US Renewed Wireless business, doubling revenue over three years through innovative seller programs and quality mechanisms. My approach combines data-driven strategies, scalable mechanisms, and cross-functional collaboration to drive sustainable growth and operational excellence.

Skills

• Brand Management
• Marketing Strategy
• Direct Sales
• Sales Presentations
• Outlook
• Social Media Marketing
• Saas
• Winemaking
• Crm
• B2b
• Strategic Partnerships
• Outside Sales
• Sem
• Solutions Marketing
• Negotiation
• Solutions Based Sales
• Market Planning
• Business Development
• Training
• New Business Development
• Account Management
• Online Advertising
• Sales Operations
• Customer Retention
• Wine & Spirits Industry
• Online Marketing
• Forklift Operator
• Microsoft Office
• Sales
• Sales Management
• Salesforce.com
• Wineries
• Strategic Planning
• Advertising
• Wine
• Consultative Sales
• Data Analysis
• Lead Generation
• Business Intelligence
• Brand Development