What It Actually Means to Be a Great Growth Marketer

I’ve been around growth marketers for more than 25 years. In that time, I’ve seen the good, the bad, and the downright ugly. Over the decades, clear patterns emerge regarding who simply does the job and who truly drives business-altering results.

I want to break down the specific qualities and characteristics of the absolute best growth marketers I’ve come across in my career. But before we get into the traits of the top 1%, it’s worth grounding ourselves on what exactly this role entails today.

The baseline: what is a growth marketer?

My take is simple: A performance or growth marketing expert is someone who owns the full funnel, from first impression to recognized revenue. Their accountability is tied directly to measurable outcomes, never just reach or awareness.

• The core job: Drive customer acquisition, retention, and revenue growth through data-driven, testable, and scalable marketing programs. Every dollar spent has an expected return, and their daily mandate is to continuously optimize that return.
• The difference: Traditional marketers often optimize for brand metrics like awareness, sentiment, and share of voice. Performance marketers optimize for hard business metrics: CAC, ROAS, LTV, conversion rates, and payback periods. Frankly, if they can't measure it, they're skeptical of it.
• The mindset: They are hypothesis-driven, comfortable with ambiguity, and biased toward shipping experiments quickly. They would rather learn from live data than wait around for the "perfect" plan.

To put it bluntly: If a traditional marketer asks, "How do we tell our story?" a growth marketer asks, "What's our cost to acquire a customer, and how do we cut it in half?"

The toolkit

The modern growth marketer must command a rigorous, cross-functional skillset. They need to be fluent in:

• Paid media execution: Deep optimization across Meta, Google, TikTok, Pinterest, programmatic, and CTV.
• Attribution modeling: Leveraging incrementality testing to understand exactly which channels and touchpoints actually drive conversions.
• Relentless testing: A/B and multivariate testing at the creative, landing page, and offer levels.
• Funnel analytics: Identifying exactly where users drop off and ruthlessly fixing the leaks.
• Investment/capital allocation: Shifting budgets dynamically across channels based on marginal returns.
• Cohort analysis: Modeling LTV to optimize for customer quality, not just volume.
• Lifecycle marketing: Utilizing SEO, email, and lifecycle campaigns as primary retention levers.

Furthermore, the "growth" angle inherently requires a product-led dimension. These marketers sit at the intersection of marketing and product, running experiments that touch the product itself (referral loops, onboarding flows, and activation triggers), rather than just throwing ad spend at a wall.

The differentiators: characteristics of the greats

You can teach the toolkit. What you can't always teach are the inherent traits that separate competent marketers from elite ones.

1. Zero ego: Ego is completely antithetical to a data-first approach. I don't care how smart you think you are; you are never smarter than the scientific method.

I’ve talked to "growth marketers" about testing Performance TV, for example, only to be met with a dismissive "No, that’s not possible," or "We already do CTV," thinly wrapped in a coat of arrogance. Let me just say this: if someone with that profile worked for me, they wouldn’t work for me. The data dictates the direction, not your pride. And there’s no excuse for laziness or lack of intellectual curiosity.

2. Relentless curiosity, hunger, and drive: The landscape shifts daily, and there is always something new to explore. The best growth marketers possess a massive, inherent curiosity and an absolute sense of urgency. They are hungry to discover new channels, test emerging approaches, and stay on the bleeding edge of the industry. They don't rest on what worked yesterday; they are obsessed with improving and figuring out what will work tomorrow.

For example, one of the defining moments of my career came during the early days of paid search. We had a partner willing to test GoTo's paid search product in a completely non-standard implementation. Instead of displaying the traditional experience under our brand, the results page would show only three paid search results with GoTo's branding removed.

Internally, many people reacted violently. The prevailing view was that we needed to preserve the "ingredient brand" strategy, similar to Intel Inside. There was tremendous resistance to trying something different.

After considerable debate, our CEO stepped in and advocated for a simple test. The results were extraordinary. That experiment ultimately helped create the "paid layer" search product category that went on to define the future of paid search. And yet it almost never happened because people were too attached to their assumptions to let experimentation settle the debate. Looking back, that experience reinforced something I've seen over and over again throughout my career: the companies that create entirely new categories are the ones that embrace testing and experimentation as core values.

What 25 years of growth marketing has taught me

Looking back across my career, I've seen this pattern repeat itself over and over again. It happened with paid search, then with programmatic, and later with mobile performance advertising. And today, I see it happening with Performance TV.

Every major innovation or new growth channel begins the same way. It reminds me of Arthur Schopenhauer’s famous words: “All truth passes through three stages: First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident." That’s exactly how disruptive ideas take hold. Most people explain why it can't work. A small number run the experiment anyway. Years later, everyone acts as though the outcome was inevitable. That's why I've become deeply skeptical of certainty. In growth marketing, certainty is often just another form of ego. The market doesn't care about your opinion. It cares about evidence.

Over time, I've come to believe that the scientific method–the engine behind all human knowledge accumulation–is the single greatest antidote to ego in marketing. Every hypothesis is valuable. Every assumption deserves to be tested. Your favorite idea and your least favorite idea deserve exactly the same treatment: Run the experiment and follow the data. And build systems and a culture that does this rapidly and at scale.

The best growth marketers I've worked with almost enjoy being proven wrong because every failed hypothesis gets them one step closer to the truth.