Shannon Cain
Ecommerce, Sales, Digital Marketing & AI Leader
Jacksonville, FL904-373-8406linkedin.com/in/shannoncainjrshannoncainjr.com
Summary
Ecommerce, sales, digital marketing and AI leader with 20+ years in sales and management, 15+ years running ecommerce and digital marketing at director and COO level, and 20+ years in technology. Led $50M+ in online sales across Shopify, Amazon and Walmart, and worked with buyers at Walmart, Amazon, Target, Sam’s Club, Home Depot, Lowe’s, Wayfair and Menards. Builds the systems behind growth: ERP/WMS rollouts, custom integrations, forecasting and reporting, and AI agents and automations used in daily operations. Founder of eCommWiz (2021), a Jacksonville digital agency.
Core skills
Sales & retail: B2B and B2C sales; wholesale; retail buyer relationships; vendor management; sales team training in ecommerce, wholesale, automotive and services
Digital marketing: Meta, Google (Search, Shopping, Performance Max), Amazon Ads and TikTok; SEO, local SEO and AI search visibility; email and SMS (Klaviyo, GoHighLevel); tracking (pixel, Conversions API, GA4); creative production
AI & automation: Scheduled AI agents with shared memory; custom MCP servers; ERP and reporting automation; AI image, video and voice production; AI-assisted development
Ecommerce: Shopify & Shopify Plus, WooCommerce, BigCommerce; Amazon Seller & Vendor Central, Walmart, Target, Wayfair; conversion and UX
Operations & supply chain: Odoo ERP/WMS, NetSuite; integrations; product sourcing and factory relationships; inventory, purchasing and forecasting; logistics, warehouse, 3PL and freight; P&L; team leadership
Experience
- Launched Odoo ERP/WMS company-wide: inventory control, order management, purchasing and warehouse workflows.
- Built a custom Shopify-to-Odoo integration in-house, replacing a paid third-party connector.
- Built leadership dashboards, delivery-based sales reporting and self-service scheduled reports.
- Designed a customer demand forecast and inventory run-out view used to time purchasing.
- Built an import purchase-order and container tracker covering every overseas order to the warehouse door.
- Automate routine checks and alerts, and use AI-assisted development to deliver in a fraction of the usual time.
- Rebuilding plantswitch.com solo, leading and doing the design and development, connected to Odoo.
- Founded and run a Jacksonville digital agency serving US small and mid-size businesses.
- Build custom websites and online stores on Shopify, WooCommerce, WordPress and standalone code, including custom plugins.
- Run paid media (Meta, Google, Amazon, TikTok), SEO, local SEO, AI search visibility, email and SMS for clients.
- Build AI agents and automations: platform-monitoring and prospect-research agents, a social posting agent with human approval, and AI card grading against live market prices.
- Wrote custom MCP servers connecting AI agents to Shopify, Odoo, Meta, Google Ads, Amazon Ads, TikTok and GoHighLevel.
- Deliver brand identities and set up warehouse, inventory and ERP/OMS/WMS systems.
- Grew ecommerce sales 50% year over year across Shopify, Amazon and Walmart.
- Built and led a 12-person team across marketing, logistics, graphics and content.
- Raised Walmart content scores from 80% to 95%; redesigned the Shopify store to lift conversion.
- Ran Amazon strategy: Brand Registry, A+ Content, Sponsored Products/Brands/Display, Seller and Vendor Central, FBA.
- Launched a new brand from concept to market; managed the monthly P&L; company lead on AI projects.
- Grew monthly sales to $600K across Amazon, Walmart and Target while holding a 30% net margin.
- Led a team of 10 and restructured operations to reach 100% inventory accuracy.
- Lifted margins 60% year over year through marketing, process work and new sales channels.
- Negotiated vendor contracts worth $50K+ in first-year savings.
- Increased B2C orders 40% with social media and Google Ads campaigns, including influencer work with Snoop Dogg and Kodak Black.
- Moved the store from Magento to Shopify, cutting costs and improving security and speed.
- Improved monthly margins by $4M (33%) through supply chain and vendor improvements.
- Grew net margins from 7% to 25% in six months by streamlining processes and roles.
- Drove $1M B2C and $7M B2B in monthly sales through ecommerce and partnerships.
- Secured and managed a high-value Lenovo contract.
- Served as an infantryman (MOS 11B) at Fort Benning, Georgia.
Education & certifications
B.S., Computer Science, Sullivan University · Associate’s, Computer Electronics, Hazard Technical College
CompTIA A+ · CompTIA Network+ · CompTIA Security+ · CompTIA Secure Infrastructure Specialist (CSIS) · CompTIA IT Operations Specialist (CIOS)