head of ecommerce

John Son Brea, CA [контакт скрыт] SUMMARY Results-driven Senior Marketplace Growth Leader with 8+ years of experience managing multi-brand, multi-channel P&Ls ($18M+), scaling full-funnel media across Amazon (Seller Central & Vendor Central hybrid models), Walmart, TikTok Shop, and Shopify. Adept at cross-border teamwork, agency oversight, cross-functional collaboration (Finance, Operations, Graphics), demand forecasting, and listing/suppression troubleshooting to drive channel expansion, ROAS, and overall brand profitability. WORK EXPERIENCE OSANG LLC Head of U.S. eCommerce • South Pasadena, CA • Sep 2025 – Present Serve as total channel owner for Amazon Seller Central, directing overall P&L, growth roadmaps, and agency partners to drive 35% YoY marketplace revenue growth. Partner with VP/Executive leadership across both Korea HQ and U.S. HQ teams to align global brand strategy, set weekly revenue goals, media budgets ($100K+/mo), and ROAS targets across Sponsored Ads and DSP, improving profitability by 28%. Lead cross-functional alignment with Finance and Supply Chain for demand forecasting across 10+ SKUs, validating data, approving promotional discounting, and maintaining 99%+ in-stock rates via AWD & FBA Manage agency relationships and internal workflows to resolve complex listing suppressions, packaging compliance, customer feedback loops, and FBA ticketing with Amazon. CONTIXO eCommerce Account Manager • Chino, CA • Aug 2023 – Aug 2025 Managed eight-figure ($18M+) multi-channel revenue P&L across Amazon (Seller Central & Vendor Central hybrid model), Walmart Marketplace, TikTok Shop, and Shopify (DTC), driving sustainable channel expansion. Collaborated closely with overseas China teams (R&D, manufacturing, supply chain) and U.S. HQ teams to streamline product launches, catalog integration, and cross-border inventory allocation. Spearheaded zero-to-one launch of TikTok Shop, establishing Shopify SKU mapping, catalog creation, creator/affiliate strategies, and initial campaign scaling. Fully operated Walmart Connect advertising and self-managed Walmart Marketplace operations while managing external agency partners on Amazon PPC/DSP ($800K+/mo), cutting ACoS by 25% YoY. Collaborated with Creative and Ecommerce teams to orchestrate conversion-focused product pages, Premium A+ Content, and Brand Stores across Shopify and Amazon, increasing CTR by 40%. THUNDER COMMERCE Founder & Director of eCommerce • Remote • June 2019 – Feb 2025 Directed marketplace strategy and agency/vendor performance across 15+ marketplace accounts, maintaining 95%+ account health and 98% fulfillment accuracy. Oversee $3K–$200K+/month media spend using Helium 10, SmartScout, & Teikametrics, scaling ROAS by 30% across 1,000+ campaigns. Optimized 800+ product listings with SEO copy, custom store assets, and automated inventory audit systems (Sellerboard), recapturing $20K+ in lost FBA reimbursements. RED OAK CREATIONS eCommerce Sales Assistant • Santa Ana, CA • Mar 2021 – Jul 2023 Supported multi-channel marketplace and DTC operations across Amazon and Shopify, increasing overall order volume by 20%. Built 200+ listings, managed catalog updates, and coordinated multi-channel order fulfillment (>98% accuracy) using ShippingEasy. INCON GLOBAL LLC eCommerce Operations & Amazon Specialist • Tustin, CA • Sep 2018 – Mar 2021 Co-managed 20+ Amazon accounts leveraging a hybrid Seller Central and Vendor Central model across diverse categories including Health, Beauty, Apparel, Shoes, Toys, and Electronics. Executed daily catalog troubleshooting, backend search optimization, SLA compliance, purchase order (PO) workflows, and FBA/Vendor reimbursement audits. SKILLS Marketplaces & Platforms: Amazon Seller Central, Amazon Vendor Central (1P/3P Hybrid Operations), Walmart Marketplace, TikTok Shop, Shopify (DTC), eBay, Mercado Libre, Wayfair, Home Depot, Faire Advertising, Media, & Growth: Amazon Ads (Sponsored Products, Sponsored Brands, Sponsored Display), Amazon DSP, Full-Funnel Media Budgeting, TACoS/ROAS Optimization, Quartile, Teikametrics, Walmart Connect, TikTok Shop Campaigns, Agency Management Brand Strategy & Financials: Marketplace P&L Ownership, Contribution Margin Analysis, Media Budget Allocation, Promotional Strategy, Price Strategy, Sales Forecasting, International Expansion Catalog, Operations & Analytics: Brand Analytics, Search Query Performance (SQP), Brand Registry, Business Reports, A+ Content & Premium A+, SEO & Listing Optimization, Buy Box Management, Product Launch Strategy, Variation/Parent-Child Architecture, Suppression Troubleshooting, Packaging & Compliance Ticket Resolution, Review Monitoring, Helium 10, Keepa, SmartScout, Sellerboard, Linnworks Project Management & Collaboration: Asana (Workflow & Team Management), Slack, Microsoft Teams, Zoom EDUCATION Bachelor of Business Administration (B.B.A.) – Marketing • California State University, Los Angeles • Los Angeles, CA