12 GTM Engineer Interview Questions (and the Answers That Should Worry You)
The best GTM engineer interview is a screen share. Ask the candidate to walk you through one system they built, end to end, and spend most of the hour asking "why". The questions below are the ones we use at Paddock to vet operators before founders ever meet them.
Part 1: The system walkthrough (30 minutes)
1. "Walk me through one outbound or pipeline system you built, from the list to the booked meeting." Strong: specific numbers, a clear ICP, decisions they made and why. Red flag: a tour of the tools with no results.
2. "How did you decide who to target?" Strong: talks about buyer pain, triggers and signals. Red flag: "we pulled everyone with VP in their title from Apollo."
3. "What did the first version get wrong, and what did you change?" Strong: names a real failure and the fix. Red flag: nothing ever went wrong.
4. "Show me the message that worked best. Why did it work?" Strong: explains it from the buyer's side. Red flag: "the AI wrote it."
5. "What did it cost to run, per meeting booked?" Strong: knows roughly. Red flag: no idea. Seed budgets are tight; you want someone who counts.
Part 2: Judgment (20 minutes)
6. "A campaign sent 1,000 emails and booked zero meetings. What do you check first?" Strong: deliverability first, then list quality, then message. Fixes messaging before changing the ICP.
7. "Our founder closes every deal but has no time to prospect. What do you build in your first two weeks?" Strong: starts by listening to the founder's calls. Red flag: starts by buying tools.
8. "When would you NOT automate something?" Strong: when the motion isn't proven yet, or when the volume is too low to matter. This question separates builders from tool collectors.
9. "How would you find 200 companies likely to buy from us this month?" Strong: names real signals (hiring, funding, tech stack, job changes) and where to get them.
Part 3: How they work (10 minutes)
10. "What's something you've learned or built in the last month?" The tools change every quarter. You want someone who's still learning on their own time.
11. "Have you ever closed a deal or run a sales call yourself?" At seed, the answer matters. Builders who can sell are rare and worth more.
12. "What would make you leave this job in six months?" Honest answers here save everyone time.
The 5 biggest red flags
- Lists tools but can't show results
- Has never talked to a buyer
- Can't explain why a message worked
- Every story starts with "we" and never "I"
- Wants a team before proving the motion
A simple scorecard
Score each candidate 1 to 5 on: built something real, buyer understanding, judgment, speed of learning and ownership. Anyone under 3 on "built something real" is a no, however well they interview.
FAQ
Should I give a take-home assignment? A short paid one, yes: "Build a list of 50 companies that fit our ICP and write the first email." Keep it under three hours and pay for it.
How many interview rounds is right at seed? Three is plenty: a founder screen, the system walkthrough and a short paid project.
Don't have time to vet GTM engineers yourself? Every Paddock operator has already passed this interview. Book a 30-minute call →
Want to practice this interview with someone who's done the job? Introduce yourself →