Why pre-screen growth assistants before the interview
This role is usually remote, usually junior, and usually briefed in a hurry by someone with no time. That combination means the deciding skill is not marketing knowledge, it is what someone does with an instruction that does not quite make sense. Assistants who work out well ask one clarifying question and then proceed; the ones who do not either guess or wait. A short screen surfaces which, alongside whether they can read a test result.
What actually matters when screening Growth Assistant candidates
- 01
Campaigns that performed
Check which growth experiments they personally ran: paid social creative, referral loops, onboarding email sequences. Ask for signup, activation or CAC numbers before and after their work.
- 02
Audience and segmentation
Probe how they defined target segments: ICP filters in Apollo or Clay, cohort splits by acquisition channel, or lifecycle stages inside HubSpot or Customer.io.
- 03
Measurement and testing
Test their handling of GA4, UTM hygiene, event tracking in Mixpanel or Amplitude, and whether they know when an A/B test lacks sample size.
- 04
Working with the business
Assess how they coordinated with sales, design and product: brief turnaround, creative requests, lead handoff quality, and weekly growth standup or reporting rhythm.
Pre-screening questions to ask Growth Assistant candidates
12 questions grouped by what they test. Ask the same set in every screen and score answers on a consistent scale, or send them as an async video screen and compare answers side by side.
Growth work they ran
3 questions01What experience do you have in growth marketing or related roles?
Listen forSpecific work they executed with the channel named, and an honest account of what was theirs versus the team's.
Experience described in team terms, or channels listed with no work behind them.
02Can you describe a growth initiative you have worked on and what it achieved?
Listen forA specific initiative with a number attached, and honesty about how much of the result they can claim.
Results claimed with no measurement, or growth attributed to their work with no basis.
03What tools or software are you familiar with that support growth work?
Listen forTools used for real tasks with what they can do in each unaided, rather than a list of names.
Tools listed with no tasks behind them, or platforms named that they have only read about.
Reading a test
3 questions04How do you measure the success of a growth initiative?
Listen forA measure tied to the objective with a sense of what would count as a meaningful change.
Success measured by activity completed, or vanity measures used because they are easy to report.
05How do you approach testing for growth initiatives?
Listen forOne variable changed at a time with duration or sample size decided before starting.
Tests stopped when a variant looks ahead, or several changes made at once with no way to attribute.
06Can you describe a time when something you tried did not perform as expected?
Listen forA diagnosis attempted rather than the result dismissed, with what they would test next.
Failures attributed to the channel or the market, or no attempt to understand why it did not work.
Working unsupervised
3 questions07Can you explain your approach to managing tasks, including how you prioritise under deadline?
Listen forA system they operate daily with a clear rule for what slips when everything cannot be done.
Tasks tracked mentally, or everything treated as equally urgent.
08What is your working setup for remote work, including your plan for connectivity problems?
Listen forA workable setup with a genuine contingency, showing they have thought about a day when the connection fails.
No backup plan for connectivity or power, or a setup that would not support video calls reliably.
09Describe a significant challenge you faced at work and how you resolved it.
Listen forA problem they solved with their own initiative, including who they asked for help and when.
Challenges resolved entirely by someone else, or a problem they waited out rather than addressed.
Handling a vague brief
3 questions10How do you handle vague or poorly explained tasks, especially from a manager?
Listen forOne specific clarifying question asked, then proceeding, rather than guessing or waiting to be told more.
Guesses and delivers the wrong thing, or waits for clarification without flagging that they are blocked.
11Explain your approach to working with difficult colleagues, with an example.
Listen forA specific case handled directly, with an attempt to understand the other person's position first.
Colleagues described as the problem, or difficulties escalated with no direct conversation.
12How do you keep up to date with developments in growth marketing?
Listen forSpecific sources named with something recent they tried as a result, rather than a general claim to read widely.
Generic sources with nothing applied, or no learning habit they can describe.
How to score responses
Score every candidate on the same four criteria immediately after the screen. At this stage you are shortlisting for panel interviews, not making the final call.
Campaigns that performed
30%5Names specific experiments with owned metrics, for example lifting trial-to-paid from 4% to 7% via a three-email onboarding sequence.
Audience and segmentation
25%5Distinguishes segments by behaviour and source, and can explain why one cohort converted differently from another.
Measurement and testing
30%5Reads funnel dashboards critically, calls out attribution gaps, and refuses to declare a winner on underpowered test data.
Working with the business
15%5Describes concrete handoffs, for example flagging poor lead quality to sales and rewriting form fields to fix it.
The deciding skill here is not marketing knowledge, it is what someone does with a brief that makes no sense. A one-way video screen asks directly.
Try it on HirevireScreening FAQ
Process basics
How long should a pre-screening round for this role take?
Ten minutes across eight to ten questions, answered async. Enough to establish what growth work they have run, test their experiment reasoning, and hear how they handle an unclear brief.
How much experience should I expect?
Less than the title suggests. This is usually an entry or second role, so screen for reasoning and self-management rather than for a track record of campaigns they owned.
Evaluating answers
What is the strongest signal when screening this role?
What they do with a vague instruction. The right answer asks one specific clarifying question and then proceeds. Guessing produces rework; waiting produces a stalled week that nobody notices until it is late.
How do I judge their testing knowledge?
Ask how they know a test finished. Real answers involve deciding sample size or duration in advance. Anyone who stops when a variant looks ahead is reading noise, which is the most common error at this level.
Go deeper on this role
Sanat has been hiring since 2012 and watching the recruitment industry change up close ever since, and turned that screening process into Hirevire's video screening platform. LinkedIn
