What Is an Amazon Marketing Expert, and How Do You Vet One?

What "Amazon marketing expert" actually means

"Amazon marketing expert" isn't a licensed title. Anyone can put it on a Fiverr profile or a LinkedIn header. The label covers three genuinely different jobs, and most people hiring one don't realize which job they actually need.

• Listing and SEO — product titles, bullets, backend keywords, A+ content. This is copywriting plus Amazon's search algorithm.
• Sponsored ads (PPC) — Sponsored Products, Sponsored Brands, Sponsored Display, bid management inside Seller Central or the Ad Console.
• DSP and programmatic display — off- and on-Amazon display and retargeting. This requires an actual DSP seat and reports at a different layer entirely.

A freelancer who's excellent at listing copy may have never touched a DSP console. An agency that runs strong PPC may resell DSP to a third party and mark it up. Ask which of the three you're actually hiring for before you look at a single portfolio.

The three tiers, and what each one actually gets you

Price structure tells you more than the headline number. Here's how the market breaks down by tier, based on how these engagements are actually sold.

What good numbers actually look like

Here's a real portfolio result, so you have something concrete to compare an expert's pitch against. Across 30 advertisers we ran through Amazon DSP in July 2026, the portfolio returned 6.04x ROAS — measured across the whole book, not the single best line item pulled out to look good in a deck. That book ran 78.4 million impressions at a $4.00 CPM and a blended $1.42 cost-per-click, with a blended cost per acquisition of $5.49 across 57,137 attributed purchases. 20.1% of those purchases came from a shopper new to the brand.

Two things worth flagging in that number. First, the $0.41 CPC that gets quoted around this category is online-video only, not the whole book — if a pitch deck leads with a rock-bottom CPC, ask which format it's measuring. Second, "attributed purchases" is not the same as "purchases that wouldn't have happened anyway." Last-click attribution tells you a sale happened near an ad. It can't tell you the ad caused it. That takes holdouts or matched controls, and most experts — including agencies charging for the report — don't run either.

How to vet one before you sign anything

Ask these five questions. The answers tell you more than a star rating ever will.

• Which of the three layers — listing, PPC, DSP — do you actually operate, and which do you subcontract?
• Can you show a result across a whole account or portfolio, not one cherry-picked campaign?
• How do you separate what DSP added from what sponsored ads would have driven anyway?
• What's your fee structure — flat, per-seat, banded by spend, or a percentage — and what is the percentage?
• If we leave, do we keep the account structure and the underlying data, or does reporting access disappear with you?

If the answer to the fee question is "we'll send a custom quote," that's normal — most legitimate operators price this way once they know your spend. What's not normal is refusing to name the structure at all. A vendor who won't say whether they charge a flat fee or a percentage of your spend is a vendor who doesn't want you doing the math on what a growing budget will cost you next year.

The mistake almost everyone makes here

The single most common mistake in hiring an Amazon marketing expert is judging them on last-click ROAS alone — and we've made a version of this mistake ourselves early on, reporting DSP performance without reconciling it against sponsored ads running in parallel. When DSP and Sponsored Display both get credit for the same sale, the reported return looks better than the real one, and nobody catches it until the budget doubles and the incremental lift doesn't show up.

If a number your expert reports seems too good for your category, ask how it's measured. If they can't answer without the phrase "last click," ask for a holdout test or a matched-control period before you approve the next budget increase. If they can't run one, that's useful information too — it tells you the ceiling of what that relationship can actually prove.

Where a managed DSP specialist like reMKTR fits

reMKTR runs Amazon DSP as a managed service. We hold real DSP seats and reconcile results in Amazon Marketing Cloud, so DSP and sponsored ads stop double-counting each other before we tell a client what display actually added — last-click attribution can't prove incrementality, holdouts and matched controls can. We're part of the Full Circle group, which has managed more than $500M in Amazon spend across 100+ brands, including HexClad, Ridge, and Epic Gardening.

That's the right fit for a brand already spending enough on sponsored ads to want an honest answer on whether display is worth adding. It's not the right fit for a brand that needs its first listing rewritten or its first PPC campaign launched — that's exactly the kind of work the freelancers and consultants covered above do well.