Fractional CMO · E-Commerce Growth
I’m Kevin Foster. I spent fifteen years running e-commerce marketing in-house before building the AI systems that run it faster. Recent client work returned 5.46× on ad spend while spending 28% less. That is not a bigger budget. That is better operating.
5.46×
Return on ad spend
+48% year over year
254%
Revenue growth
year over year
−28%
Ad spend
while revenue climbed
70%
Faster reporting
via AI-assisted ops
The gap
The strategy consultants arrive with a framework, run a workshop, and hand you a deck. The AI specialists can automate anything but have never been accountable for a revenue target. Both leave you to do the actual work.
I spent fifteen years on the inside of an e-commerce retailer, where the forecast had my name on it and there was nobody to hand the deck to. Then I built the AI tooling that cut reporting time by seventy percent — not as a product demo, but because I needed those hours back.
You get one person who can set the strategy, run the channels, and build the systems underneath. That combination is rarer than it should be.
Services
Senior marketing leadership without a senior marketing salary.
I take ownership of the marketing function — strategy, budget, channel mix, and the people or agencies executing it. You get someone who has actually run the P&L, not a consultant who hands over a deck and leaves.
Fifteen years of running retail channels, applied to yours.
Paid search, paid social, affiliate, email, and CRO — managed as one system rather than five disconnected line items. Most accounts I inherit are not underfunded. They are uncoordinated.
The unglamorous work, automated.
Reporting, analysis, and campaign QA are where marketing teams quietly lose their week. I build the AI systems that give those hours back — and then use them for the strategic thinking nobody had time for.
Your next customer is asking ChatGPT, not Google.
Generative engines now answer the questions that used to start a search session. If those answers recommend your competitors, that is a channel you are losing without a report to tell you. I measure it and fix it.
Platforms
Every platform below is one I designed, built, and still maintain. Clients get access to them as part of an engagement — and I get a working knowledge of the problems they solve that no vendor demo could give me.
Monitors how ChatGPT, Claude, Perplexity, and Gemini describe your brand — and shows you exactly what to fix when they get it wrong.
alpynai.com
A free audit of how well your site is set up to be found and cited by AI answer engines. Scored, with prioritized fixes.
geo.aypexai.com
Marketing intelligence tooling that turns customer reviews and GA4 data into insights you can act on this week.
climberiq.com
SEO-optimized blog content for local businesses — four to eight posts a month, with no writing required from the owner.
peakcontentgroup.com
Generates high-converting product descriptions at catalog scale, for merchants with thousands of SKUs and no copywriter.
elevatecopyai.com
Product information and digital asset management for Shopify merchants who have outgrown spreadsheets.
vrtyq.com
A simple ad server for independent publishers. One line of code, book your own sponsors, keep all of what you charge.
vrtasyn.com
Also built & maintained
About
I started in affiliate marketing in 2010 and spent the next fifteen years at a national e-commerce retailer, moving through social, then paid search, then the full digital channel mix and partnership strategy.
In 2024 I founded K. Foster Marketing, LLC to do that work for brands that need the judgment of a marketing leader without the cost of hiring one.
My background is unusual in one respect: I hold a computer science degree alongside the business one, which is why the AI side of this practice is something I build rather than something I buy.
Kevin Foster
Founder & President
Greater Boston · Remote
Capabilities
Contact
The first conversation is a straight diagnostic — what you’re spending, what it’s returning, and whether I’m actually the right person to help. If I’m not, I’ll tell you that.