The Growth Marketer Isn't a Generalist
Let me be direct: if you're hiring your first growth person, you're not looking for someone with 15 years in brand marketing. You need a T-shaped marketer. Depth in one or two channels (paid acquisition, content-led growth, product-led growth), but broad enough to understand how acquisition, activation, retention, and revenue fit together.
The channels vary. The core skill doesn't. A real growth marketer thinks in systems. They run experiments. They measure everything. They know when they're wrong and pivot fast.
What You're Actually Hiring For
- T-shaped skills: Deep expertise in one channel, working knowledge of the full funnel
- Experiment mindset: Hypothesize, test, measure, iterate — not "I think this will work"
- Data literacy: Can read a dashboard, understand attribution, spot bad data
- Product awareness: Knows how product changes impact marketing metrics
- Speed and pragmatism: Gets 80% right and ships, doesn't wait for perfect
The Red Flags You Can't Ignore
I've interviewed hundreds of marketers. Here's what tells you someone isn't actually a growth marketer:
- Only talks about brand awareness. "We'll build brand equity" with zero mention of conversion, activation, or revenue. Growth marketing doesn't exist without the numbers.
- Can't explain attribution. Ask how they'd measure the impact of a paid campaign. If they go silent or give a vague answer, move on. Attribution is non-negotiable.
- Never run an A/B test. Ever. This is disqualifying. Growth is built on testing. If someone hasn't, they can't credibly claim to be a growth marketer.
- Talks about "going viral" unironically. Viral is a nice bonus, not a strategy. Real growth marketers talk about CAC, LTV, cohort retention, and churn.
- No idea how their previous company made money. You don't need to understand every revenue model, but if they worked somewhere for three years and can't explain how the business actually makes money, they weren't paying attention.
Interview Questions That Actually Reveal Skill
Forget generic questions. Here's what I ask:
1. "Walk me through an experiment you ran from hypothesis to decision."
Listen for specificity. They should name the metric they were optimising, what they changed, how they sized the test, how long it ran, and what the result actually meant. If they can't articulate this clearly, they haven't done it.
2. "How did you prioritise channels, and what made you say no?"
This reveals decision-making. Real growth marketers make tradeoffs. They pick two or three channels to go deep on rather than spreading thin. Listen for rigour in how they chose. Data? Intuition backed by testing? Resource constraints they had to work within?
3. "Tell me about something that failed. What did you learn?"
Everyone fails. What matters is whether they learned and changed approach. If someone tells you they've never had a campaign flop, they're either not testing enough or lying.
4. "How would you measure success in your first 90 days here?"
Do they understand what matters to your business? Are they thinking strategically about inputs (what they can control) versus outputs (revenue, MRR)? Do they ask clarifying questions about your current metrics?
5. "What data would you pull on day one?"
This shows what they prioritise. They should ask about: current funnel metrics, cohort retention, LTV by source, current CAC, churn, onboarding completion. Not vanity metrics.
| Level | Channels | Focus | Cost |
|---|---|---|---|
| Junior (0-2 yrs) | 1 channel deeply | Execution, learning testing framework | $50–70k |
| Mid (2-5 yrs) | 2–3 channels, some depth | Channel mix, early funnel optimisation | $80–120k |
| Senior (5+ yrs) | Full funnel strategy | Strategy, team leadership, LTV model | $130–180k |
| Consultant | All channels as needed | Diagnostic, rapid iteration, team upskilling | $150–300/hr |
In-House vs. Consultant: When Does Each Make Sense?
Hire in-house if: You have product-market fit and need sustained, iterative growth. You're running enough volume to run real experiments. You have data infrastructure in place (or can build it). You need someone embedded in the team, understanding your product deeply.
Hire a consultant if: You're pre-PMF and need fast diagnostics. You don't have the data or tooling to support a full-time growth hire yet. You want to skill up your internal team quickly. You're testing whether growth marketing is the bottleneck before committing to headcount.
I'll be honest: I came into marketing through in-house roles at high-growth companies. That's where I learned. But I've also consulted for founders who needed help fast. Both have their place.
Before You Interview: Sort Your Own House
Make sure you have the basics in place first. A growth marketer can't thrive without: a product that solves a real problem, some baseline analytics or tracking, clarity on your unit economics, and honest numbers (not hopeful ones). You don't need perfection, but you need honesty.
What This Really Comes Down To
Hiring a growth marketer is hiring someone who thinks in systems, moves fast, and measures everything. They'll ask you hard questions about your funnel, your data, your unit economics. That's a good sign.
The best growth marketers I've worked with weren't the ones with the fanciest campaign or the longest resume. They were the ones who got curious, ran experiments relentlessly, and weren't afraid to say "we tried it, it didn't work, here's what we do next."
Look for that. Everything else flows from it.