Sales development rep interview questions that separate coachable from rehearsed
An SDR interview is trying to find out whether someone can be told they're wrong and get better, because that's the whole job in the first six months. Everything else (the script, the product, the CRM) is taught. The three things you can't teach quickly are tolerance for rejection at volume, the discipline to do the same activity on a bad day, and the willingness to change an approach that isn't working. Almost every question below is one of those three wearing a different hat.
What the job actually involves
An SDR opens conversations that someone else closes. The day is calls, emails and messages in volume, against a target measured in meetings booked instead of deals won. Most of the outreach is ignored, a good share of the rest is declined, and the job is to keep the quality of the fiftieth attempt equal to the fifth.
The part that decides who succeeds is the feedback loop. A good SDR gets a call reviewed, hears what was wrong with it, and sounds different on the next one. A weak one hears the same feedback three times. That's why coachability, not charisma, is the thing worth screening hardest for. And why a recorded answer is a genuinely good format here, because you get to hear how someone actually talks to a stranger.
The questions, and what a good answer sounds like
Ask these as written. Each one is paired with what a strong answer sounds like, so two people rating the same candidate reach the same conclusion for the same reason.
1. Sell me on why I should take a meeting about something I didn't ask about.
A good answer: Leads with a reason relevant to the listener instead of a product feature, keeps it under ninety seconds, and ends with a specific ask. Strong candidates make it about a problem. Weak ones recite what the product does. This is the closest thing to a work sample in the list and it is worth weighting heavily.
2. Tell me about a time you were told your approach wasn't working. What happened next?
A good answer: Names the feedback plainly, describes what they changed, and says whether it worked. The signal is a specific behavioural change (a different opening line, a different call time) not 'I took it on board'. Candidates who can't recall critical feedback have usually not been coached, which is a training cost.
3. You have made forty calls today and booked nothing. What do you do with call forty-one?
A good answer: Makes the call, and says something about diagnosing the pattern first, checking the list, changing the opener, asking someone to listen in. What you're testing is whether they treat a bad day as information or as a mood. Anyone who says they would stop is telling you about month three.
4. What do you do when a prospect says they aren't interested in the first ten seconds?
A good answer: One honest attempt to find out why, then a clean exit. Strong answers respect the no not steamrolling it, because a rep who can't hear a no burns the list. Watch for candidates whose answer is a rehearsed objection-handling script with no listening in it.
5. Walk me through how you would research a company before reaching out.
A good answer: Names concrete sources and, crucially, what they would look for, a trigger event, a role being hired, a public change. Weak answers describe reading the website. The difference is whether their outreach will say anything the prospect couldn't have written themselves.
6. How do you decide who to contact first out of a list of two hundred?
A good answer: Has a basis — fit, trigger, seniority, timezone — and applies it before dialling. Strong candidates mention that the top of the list should get the most attention, not the same attention. Someone who works alphabetically is describing activity, not prospecting.
7. Tell me about the hardest thing you have had to learn quickly.
A good answer: Something genuinely hard, with the method described: what they did on days one, three and ten. This is the best proxy in the list for ramp speed, and it deliberately doesn't have to be sales-related: a career changer with a real answer here often outperforms someone with two years of unexamined SDR experience.
8. What is the difference between a good call that didn't book and a bad call?
A good answer: Separates process from outcome. A good rep knows a call can be well run and still lose, and can name what made it good. Candidates who define every unbooked call as bad will chase the number in ways that damage the list.
9. How would you handle a month where you're going to miss target?
A good answer: Raises it early, with a diagnosis and a plan. The tell is whether they tell their manager before the month ends. Someone who describes quietly working harder is describing the surprise you don't want on the last day of the quarter.
10. What would make you leave this job within a year?
A good answer: An honest answer. Everyone has one, and a candidate who says nothing would is either not thinking or not saying. This is the question most likely to tell you whether the role you're actually offering matches the job they think they're taking.
A scorecard you can rate against
Rate every candidate 1 to 4 on each row, and write the rating down before you watch the next one. Ratings drift badly when they're relative to whoever you just saw.
| Criterion | What a 4 looks like |
|---|---|
| Coachability | Names critical feedback and a specific change that followed. A 2 recalls feedback but not what they did differently. |
| Resilience at volume | Treats a bad day as a diagnosis problem. A 2 describes pushing through on willpower alone. |
| Talking to a stranger | The pitch answer is clear, short and about the listener. A 2 is a feature list or runs long. |
| Prospecting judgement | Prioritises a list on a stated basis and researches for a trigger. A 2 works through it evenly. |
| Honesty about misses | Escalates a miss early with a plan. A 2 works harder quietly and reports at the end. |
How to run the screen
- Put the pitch question first. It is the only one that's really a work sample, and if it is weak you can stop there.
- Cap answers at ninety seconds. An SDR who can't be interesting in ninety seconds won't be interesting in a cold call, so the limit is part of what you're measuring.
- Score coachability from the feedback question specifically, not from a general impression of pleasantness. Charisma and coachability are different traits and they often come apart.
- Compare the strongest six back to back. Delivery differences are much easier to hear when the answers are minutes apart, which is the main practical reason to record instead of phone screen.
- Save the live round for role play. A recording tells you how someone speaks; only a live call tells you how they respond when you push back mid-sentence, which is the actual job.
Running this on a large applicant pool is where it gets expensive. VoxScreen sends these questions as a single link, transcribes and scores every answer against criteria you set, and hands back a ranked list. Free for 50 candidates a month, no card.
Common hiring mistakes for this role
- Hiring for charisma. It interviews extremely well and predicts very little. The reps who last are the ones who change what they do after feedback, which is a quieter signal and the one the scorecard above weights.
- Requiring SDR experience. Two years of unexamined cold calling is often worse than a career changer who learns fast, and the requirement narrows the pool for no measured gain.
- Asking only about wins. Every candidate has a best month rehearsed. The questions that separate people are the ones about the bad month and the critical feedback.
- Using a recording to test objection handling. Real objection handling is interruptive and adversarial, and a recorded answer can't be either — this is a case where the live round is doing the important work and the recording is only a filter.
- Rejecting on accent or nerves. Neither predicts booking rate. If spoken clarity genuinely matters for your market, assess proficiency deliberately not letting a first impression stand in for it.
Common questions
What should I ask an SDR candidate in a first interview?
Lead with the pitch question, ask them to sell you on taking a meeting, because it is the only question in a first round that behaves like a work sample. Follow it with the two behavioural questions about critical feedback and a bad day. Those three will separate most of a pipeline, and you can save the rest for candidates who clear them.
How do I tell if an SDR candidate is coachable?
Ask for a time their approach was called out as wrong, and listen for a specific behavioural change afterwards — a different opener, a different call window, a different list. Coachable candidates describe what they did differently. Uncoachable ones describe how they felt about the feedback, or can't remember receiving any.
Should I hire SDRs with no sales experience?
Often yes. The skills that matter in the first year (learning fast, absorbing rejection, changing after feedback) are visible in candidates from hospitality, teaching, support and recruiting, and none of them require prior sales experience. Requiring it shrinks your pool substantially and buys less than most teams assume.
How many candidates should I screen for one SDR hire?
More than for most roles. SDR postings attract large volumes and the base rate of fit is low, so teams commonly screen 50 to 100 applicants per hire. That volume is exactly why a recorded first round is worth setting up: the same questions, the same time limit, and no calendar to negotiate for any of them.