JG Jacob Ezra Gerrish Résumé (PDF)
Ecommerce · Marketplaces · AI Search Visibility

Jacob Ezra Gerrish

Ecommerce & marketplace operations leader. Founder of SEMPITE.

Nine-plus years in retail and ecommerce, five of them owning a six-channel marketplace business end to end and scaling it to eight-figure revenue and seven-figure annual order volume. I pair commercial analytics with automation so manual marketplace work turns into repeatable growth.

New York metro & Pikesville, MD [email protected]
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Jacob Ezra Gerrish, smiling in a grey suit with arms crossed
8-figureannual revenue managed
7-figureannual order volume
6sales channels
5marketplaces operated
9+years in ecommerce
10+client sites built

About

Operator first, builder second, and the two feed each other.

I run ecommerce and marketplace operations for Vogue Group, a New York textiles company selling direct and through five marketplaces. I report to the CEO and own strategy, execution, and performance reporting across Shopify Plus, Amazon, Walmart, eBay, Etsy, and Michaels: assortment, pricing and promotion, content, the digital shelf, and the catalog and fulfillment systems underneath them.

Most of my work is turning a manual process into a repeatable one. Catalog publishing that used to take a day per channel now deploys in bulk. Product titles are decided by A/B tests rather than taste. Demand forecasts feed the annual plan instead of living in someone's head.

In 2024 I founded SEMPITE, a digital consultancy for small businesses and personal brands. It's where I build the tools and research for the next shelf: how a brand shows up in ChatGPT, Perplexity, and Google's AI Overviews.

Career highlights

Four things I'd point to if you only had a minute.

Scale

Two platforms to six, five times the daily throughput

Grew a marketplace operation to eight-figure revenue and seven-figure annual order volume, reporting to the CEO, with a team of three and a lot of automation.

Organic growth

Organic clicks up 148% year over year

Tens of millions of search impressions at Vogue through large-scale SEO, UX, and content work, including a 300-page fabric directory. Took a SEMPITE client from zero ranked keywords to top-10 for her name in six weeks.

Test and learn

Product-title A/B tests across 330+ SKUs

Google Shopping title experiments across 13 product lines. Winners gained 40 to 66% more clicks and 23 to 59% more conversions, then became the catalog-wide standard.

Builder

Five-marketplace catalog automation

Eliminated a day of manual listing work per channel. At SEMPITE, shipped an AI Search Visibility API, a 13-study research program, and a self-hosted AI stack.

Experience

The full version, with every number, is in the résumé.

2021 – PresentFarmingdale, NY

Product Development & Operations Manager

Vogue Group, Inc.
New York textiles group. Consumer-goods ecommerce across DTC and five marketplaces.
  • Own all ecommerce and marketplace operations, reporting directly to the CEO, across two Shopify Plus storefronts, Amazon, Walmart, eBay, Etsy, and Michaels.
  • Scaled the business to eight-figure revenue and seven-figure annual order volume while expanding from two platforms to six.
  • Drove first-page organic rankings across priority product and category keywords, with organic clicks up 148% and impressions up 103% year over year.
  • Own assortment, pricing, promotion, and lifecycle for tens of thousands of SKUs inside a six-figure catalog, contributing demand forecasts to the annual operating plan.
  • Automated multi-variant catalog publishing across five channels, synchronized to Finale Inventory and ShipStation, and built a PIM-style product data model plus a SKU-based asset library covering five years of media.
  • Built and lead a cross-functional team of three; wrote the fulfillment, wave-picking, and PDP playbooks that cut warehouse onboarding to a single day.
2024 – PresentMineola, NY

Founder & Chief Executive Officer

SEMPITE
Digital consultancy: ecommerce operations, SEO, AI search visibility, and website builds for small businesses and personal brands.
  • Run the consultancy end to end across eight client engagements and 10+ sites built and hosted on SEMPITE infrastructure, bilingual English and Spanish.
  • Client results include an actor's domain going from zero ranked keywords to top-10 for her name and #3 for her category term, and an education consultant growing from zero to 400+ search impressions and a podcast booking.
  • Productized the practice: a Brand Audit funnel, an AI Search Visibility API, a free-tools suite, an embeddable AI chatbot, and a client portal, all Python and FastAPI on Stripe.
  • Publish a monthly AI Visibility Index across 50 US markets and 13 studies on AI-answer citation share.
2016 – 2020Central Islip, NY

Store Manager

W. H. Frank
  • Managed $1M+ in annual sales, an online storefront, and a team of three: daily operations, customer service, scheduling, and staff development.
  • Built vendor relationships and negotiated inventory deals; used sales-trend analysis to guide purchasing and promotions.

SEMPITE

A consultancy built around one question: how does a brand show up when the search engine writes the answer?

Visit sempite.com

SEMPITE closes the gap between "I know my digital presence is behind" and "I can't afford an agency that will actually pay attention to me." It serves small businesses and personal brands, actors, musicians, authors, and local service companies, with industry-aware audits, founder-executed retainers, and a proprietary tool stack that runs on privately hosted models. Client data never leaves SEMPITE infrastructure.

AI Search VisibilityTracking and improving how brands appear in ChatGPT, Perplexity, and Google AI Overviews. An API with free and paid tiers.
Brand AuditAn 11-dimension diagnostic across search, AI answers, social, reviews, and site health, delivered through a client portal.
ResearchA monthly AI Visibility Index across 50 US markets and a growing library of citation-share studies.
Free toolsAI Readiness Score, AI Citation Checker, and an llms.txt generator published to PyPI.
Sites and hosting10+ bilingual sites built, hosted, and kept fluid with automated schema-rich publishing.
Ecommerce operationsCatalog automation, marketplace setup, and the operating playbooks from the day job, applied to smaller stores.

Skills & tools

What I actually use, week to week.

Platforms

Shopify PlusMatrixifyAmazon Seller CentralWalmart Seller CentereBayEtsyMichaels SynergyGoogle Merchant CenterFinale InventoryShipStationStripeMonday.com

Operations

Marketplace operationsDigital shelfCatalog & PIM/DAMAnnual operating planDemand forecastingIn-stock managementSOPs & playbooksWorkflow automationTeam leadership

Growth & analytics

Traffic, conversion, AOVSEOGEO / AI search visibilityStructured data & entitiesCRO & A/B testingPricing & promotionGoogle Ads & ShoppingGA4Search ConsoleAhrefsDataForSEO

Technical

Python / FastAPISQLHTML / CSSSelf-hosted LLMs & RAGLinux / ProxmoxCloudflareExcel (advanced, VBA)Photoshop & IllustratorPhotographyEnglish & Spanish

Education & service

Education

SUNY College at Old Westbury

Coursework toward B.S., Finance

New York Military Academy
JROTC Program

Service

Friends of Karen

Advisory Board

Chabad of Roslyn
Volunteer

Get in touch

Email is the fastest way to reach me. I'm based in the New York metro area and split time with Pikesville, Maryland.

[email protected] linkedin.com/in/jacobgerrish93 github.com/jacobezra93 Résumé (PDF)