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E-commerce & marketplace leadership · Long Island, New York

Making commerce work better.

E-commerce and marketplace leader with 9 years growing DTC and B2B revenue across Shopify, Amazon, Walmart, and eBay, connecting storefronts, marketplaces, systems, and AI-assisted operations.

  • Shopify
  • Amazon
  • Walmart
  • eBay
  • WordPress
  • Magento
  • SEO/AEO
  • GA4
  • Claude
  • n8n
Deyan Wickramaratna, e-commerce and marketplace leader, Long Island, New York
DEYAN WICKRAMARATNA

$2.5M

Advertising budget managed

Zulco International, 2021–2024

<20%

ACOS held while cutting ad cost 25%

Google, Amazon, Meta campaigns

+35%

Conversion increase; bounce rate down 42%

CRO and landing-page program

50+

Products launched across Amazon, Walmart, eBay, Shopify

Contributing to a 57% sales increase

13

Storefronts built or managed

Shopify, WordPress, Magento

Across the whole commerce journey.

01 / What I do

Pillar 01

Marketplace growth & profitability

Amazon Seller and Vendor Central, Walmart WFS/DSV, eBay, Google Shopping. Listings, catalog governance, pricing, PPC, compliance, EDI and ERP-connected operations.

Pillar 02

Storefronts & conversion

Shopify, WordPress, Magento. Full builds, product and collection pages, merchandising, technical SEO and AEO, CRO, GA4 measurement.

Pillar 03

AI-assisted operations

Claude, n8n, APIs, SQL. Content and product-data enrichment, SEO research, reporting, and workflow automation that cuts repetitive work.

The short version

I work the full commerce funnel, from strategy and marketplace operations to SEO/AEO, CRO, product data, and analytics.

I put AI inside those workflows rather than beside them, so revenue grows while repetitive work shrinks.

E-Commerce & Marketplaces
Shopify, Amazon Seller Central, Walmart, eBay and omnichannel commerce
Digital Growth
SEO, AEO, SEM, PPC, CRO and content strategy
AI & Automation
Generative AI, AI-assisted workflows, business process automation and workflow optimization
Web & Technology
Website operations, UX/CRO, integrations, product-data management and digital platforms
Analytics
GA4, performance measurement, marketplace analytics and data-driven optimization
Operations
Merchandising, inventory workflows, marketplace operations and scalable e-commerce processes

Built, managed, and made to perform.

02 / Selected work

+57%

Sales increase

Marketplace growth

Zulco International

Amazon · Walmart · eBay · Shopify

Challenge: scale a B2B/B2C catalog across four channels while protecting margin.

  • +Launched 50+ products
  • +Ran $2.5M across Google, Amazon PPC, Meta
  • +Connected ERP, EDI/SPS Commerce, and inventory feeds
  • +Built real-time sales and ad dashboards

+57% sales, ad cost −25%, ACOS under 20%.

surgicalmart.com, dxmsports.com, surgicalonline.com, asatechmed.com

2.7%

Conversion rate

Multi-store operations

Sage Camera LLC

Shopify + Magento

Challenge: run three storefronts (ANB Baby, 17th Street, Joneses NYC) with SEO, merchandising, and integrations from one seat.

  • +Technical, on-page, and AEO SEO with Search Console monitoring
  • +CRO and merchandising updates
  • +Inventory, Workspace, and app integrations

2.7% storefront conversion rate.

anbbaby.com, 17thstreet.com, jonesesnyc.com

12

Production skills

AI-assisted operations

Claude skill suite

Marketplace and content ops

Challenge: PPC search-term audits, per-SKU margin checks, listing rewrites, keyword research, and account-health responses each meant hours in spreadsheets and Seller Central every week.

Built 12 reusable Claude skills —

  • Amazon SKU profitability
  • PPC optimizer
  • Keyword research
  • Listing builder
  • Account-health monitor
  • Image compliance review
  • Walmart listing builder
  • Product research
  • SEO/AEO blog writer
  • Optimized content engine
  • Shopify GTM/GA4 tracking

Each runs from a Seller Central or Ads console export with no API access; SP-API and Ads API hooks are stubbed for later. Shopify, Klaviyo, Matrixify, WordPress, Gmail, and Zapier are connected to Claude as MCP tools so the skills read live store data.

12 production skills; a search-term audit or listing rewrite now runs from one CSV export.

See all 13 storefronts and the full timeline →

Channels worked

  • Shopify
  • Amazon
  • Walmart
  • eBay
  • Google Shopping
  • TikTok Shop
  • Magento
  • WordPress
  • BigCommerce
  • WooCommerce

What can we build next?

Hiring for e-commerce leadership? Let's talk.

Email Deyan ↗ Connect on LinkedIn ↗ Download résumé ↓