Profitable amazon growth. led by experience. executed with care.
I’m Brett Lemker, a hands-on Amazon and e-commerce consultant and former Amazon agency founder with 19 years of experience guiding brands toward sustainable, profitable growth.
I focus on contribution margin, clear data-driven decisions, and senior-level execution without uncessary complexity. I work directly with each client and intentionally keep my client list small so the work stays thoughtful, responsive, and effective.
The goal is simple: build something that lasts.
300+ brands advised
$500M revenue managed
19 Years of experience
Why Trust Ajarro?
experience designed for profit, executed with care.
Every account is different. The work should reflect that.
I bring 19 years of hands-on experience building, fixing, and scaling Amazon businesses across CPG, wellness, and consumer products. Some brands need strategic direction. Others need deep execution. Most need both, applied thoughtfully and consistently.
I work directly inside your account. No handoffs. No junior teams. Engagements are flexible; hourly, pre-paid blocks, or full-account management.
To stay effective and responsive, I intentionally limit my client load. That means your account gets focus, continuity, and data informed decision making, not automation or “set it and forget it” management.
Every audit, forecast, project, or optimization is guided by one principle: protect margin first, then grow.
Every strategy, forecast, and audit is designed to protect one thing: your margin.
The Ajarro Philosophy
Most growth problems don’t come from Amazon itself. They come from misaligned incentives, fragmented execution, account management that is on “auto-pilot” and decisions made too far from the data.
Ajarro takes a different approach: margin-first strategy, transparent analytics, and direct senior-level execution. No layers. No automation shortcuts. No unnecessary spend.
“Brett connects strategy to execution in a way that consistently protects margin.”
amazon is complex. clarity makes it manageable.
Stratetic consulting & advisory
bring me your amazon or e-commerce challenge, strat
You’re not paying for hours. You’re leveraging nearly two decades of experience. From forecasting and advertising structure to conversion optimization and margin repair, the work focused on what actually moves the business forward.
What I Do
strategy and execution for profitable, SUSTAINABLE growth
I provide senior-level strategy and hands-on execution without the overhead or templated workflows agencies rely on. The goal is simple: help brands make confident decisions that scale profit, not create chaos.
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Full Account Management
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Marketing
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Creative
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Finance
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Operations
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Retail / Cross-Channel
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Operations / Recovery
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Audit / Strategy
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Enablement
Operator Philosophy
built on principles, not automation
Ajarro operates under a few core rules:
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No Retainers:
You only pay for work performed.
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No Handoffs
All work is handled directly by me, not handed off.
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Transparency Always:
Clear insights, clear decisions, no hidden layers.
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Mentorship + Execution:
You understand why each move is made.
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Proactive Monitoring
Accounts are checked regularly to catch issues early.
quiet execution. transparent decisions. margin as the north star.
Ready to talk through your next move?
A 30-minute consultation can uncover your biggest opportunities for margin, clarity, and sustainable growth. No pressure. No pitch. Just an honest look at what matters most.