Ecommerce Account Management Specialist
John Krell Sta Ana
Partnering with Brands to achieve Growth through Innovation and Collaboration
Full-stack e-commerce specialist who can list, ship, and drive traffic. I run Amazon or Walmart end-to-end, launch Google & Meta campaigns, and build internal tools with agentic AI. I double as a domain expert and project manager: defining specs, running sprints, and writing the playbook so the next run is twice as smooth.
Selected Work
Results That Speak
Supplements
Vitamin Brand
$2.5M
Total Sales Reached
Challenge: Needed aggressive scaling of advertising spend while maintaining healthy returns.
Result: Reached $2.5M in sales ($351K increase YoY). Scaled advertising spend from $70K to $200K in a single month while sustaining strong ROAS.
Supplements
Oral Vitamin Spray Brand
77% YoY
Sales Increase
Challenge: Rating below 3.5 stars, limiting competitiveness in a crowded supplement space.
Result: 77% YoY growth, ROAS 2.72 to 4.2 peak, doubled ad sales in months 2-3 with only 20% budget increase.
Consumer Electronics
Mechanical Keyboard Brand
326%
Ad Sales Growth
Challenge: New market entrant struggling with visibility against established brands.
Result: 326% ad sales increase month 1, additional 55.3% growth month 2 through granular single-keyword campaigns.
Kitchen Appliances
Espresso Machine Brand
New Launch
Market Entry
Challenge: Premium product marketing in a saturated kitchen appliance space.
Result: Successful market launch with brand presence established and sustained sales velocity.
Services
How I Can Help
Amazon Listing Optimization
End-to-end catalog health, keyword strategy, and content optimization to maximize organic visibility and conversion.
E-Commerce Advertising
Data-driven campaign management across Amazon Ads, DSP, Google, and Meta with ROI-focused bid strategies.
Brand Strategy
Positioning, competitive analysis, and go-to-market planning for brands entering or expanding in marketplaces.
Reporting & Analytics
Automated dashboards, performance modeling, and actionable insights using Domo, custom pipelines, and AI tools.