experienced amazon leadership. built from the inside.
My work is grounded in real operating experience, building brands, turnable unprofitable brands profitable, fixing whatever is broken, and making decisions that protect margin while creating sustainable growth. No shortcuts. No theory. Just clear thinking, careful execution, and results that compound over time.
Brett Lemker
I started my career in Boulder, Colorado, working for a small organic beverage brand which I then launched on Amazon in 2008. What began as a single product launch quickly scaled into the company’s top-performing sales channel, setting the foundation for nearly two decades spent operating inside Amazon and e-commerce.
From there, I joined Beekeeper Marketing as an early team member, supporting national CPG brands as the company scaled and was later acquired by Advantage Solutions. During that time, I became a the company subject matter expert for Seller Central assisting some 100+ team members.
Eventually, I launched and ran my own agency, building and mentoring a team while managing over $200M in annual Amazon revenue for brands, ranging from early-stage startups to globally recognized brands. That experience taught me two important things:
Most growth problems aren’t solved by more dashboards and more spend.
The best results come from experienced operators who stay close to their work and understand the impact each lever has.
Today, through Ajarro, I work directly with brands, founders, and investors who need senior-level guidance and execution without the layers, handoffs, or noise. I stay hands-on by design and intentionally limit my client load so every account receives focused, thoughtful attention.
My approach is simple:
Anchor decisions in contribution margin and unit economics
Fix the foundation before scaling
Spend where it earns, not where it looks busy
Move deliberately, not reactively
Ajarro exists to help brands grow in a way that feels steady, informed, and sustainable, not rushed or artificially inflated. My goal is to always under-promise and over-deliver.
Brands advised
300+
Revenue managed
$500m
Years of experience
19
my principles
THESE PRINCIPLES DRIVE HOW I WORK: CLEAR, PRACTICAL, AND BUILT FOR REAL RESULTS
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Everything starts with contribution margin. Every recommendation, campaign, or operational change is tied back to real profit, not surface-level performance metrics.
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No guessing and no inflated promises. Strategy is built from experience, data, and what’s actually working in the market.
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You’ll always understand why a decision is being made. No hidden fees, no confusing retainers, and no mystery dashboards.
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I don’t just fix problems, I help you understand the systems behind them so your team becomes stronger and more self-sufficient over time.
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No contracts or long-term commitments. You pay only for the work that’s needed, when it’s needed, and nothing more.
The Anti-Agency MODEL
the model
Most agencies hand your account to a junior hire and hide behind dashboards and monthly calls. Ajarro works differently.
You work directly with me: a senior operator, and only pay when action happens. No retainers. No silent billing. No handoffs.
Every step is tied to clarity, margin, and measurable progress. Simple, accountable, and built to compound.
no retainers. no complexity. just clear execution tied to profit, not busywork.
Let’s Talk About Profitable Growth
No retainers. No bloat. Just measurable progress tied to profit.
