Hiring guideFor owners and supervisors doing the interviewing themselves

How to Interview Someone: A Structured Process for Hiring Managers

Interviewing well is mostly a matter of deciding what you are measuring before anyone sits down, then asking every candidate the same questions in the same order and writing the score during the conversation rather than after it. That is the whole method. Most frontline interviews fail not because the manager asks bad questions but because each candidate gets a different conversation, so at the end there is nothing to compare. This page is the process in order: what to define first, an eight-minute phone screen, a 45-minute structured interview you can run without HR, how to score it, and how to close so the offer does not get beaten by someone faster. SHRM puts the median time to fill for non-executive roles at 39 days; almost none of that is interview time, and shortening it is mostly a matter of removing the waiting between steps.

Step 1: decide what you are measuring, before you meet anyone

Write down three things the person must be able to do, and one thing that would disqualify them. Three, not ten — a list of ten requirements is a list of preferences, and it guarantees that each interviewer weights them differently. For a frontline role the three are usually a capability, a reliability condition and a fit condition: can they do the task to your standard, can they get to the site for that shift every time, and can they work the way your crew works.

Then define the bar in observable terms. "Good communicator" is not a bar. "Can explain to an annoyed customer why the part is late, without escalating" is. If you cannot picture what a 3 out of 5 looks like, the criterion is not ready to be scored.

Step 2: the eight-minute phone screen

The phone screen exists to confirm the four facts that make an in-person interview worth anyone's time, and nothing else. Keep it under ten minutes and run it the same day the application arrives — frontline applicants apply to several employers in one sitting, and the first employer to call usually gets the interview.

• Confirm the logistics. The shift, the start date, the location and the commute. Most bad hires and most early leavers are logistics failures, not skill failures.
• Confirm the hard requirement. The license, the endorsement, the certification, the lift requirement — whichever one is genuinely non-negotiable.
• Confirm the pay expectation against your posted rate. If the number in the ad and the number in their head do not match, find out now.
• Ask one open question. "What are you doing now, and why are you looking?" The answer is the single most useful ninety seconds in the process.
• Book the interview on the call. Ending a screen with "we will be in touch" loses the candidate to whoever books them first.

Anything that can be a form field should be a form field rather than a phone question — the knockouts worth putting on the application itself are on pre-screening questions.

Step 3: a 45-minute structured interview

Structured simply means every candidate gets the same questions, in the same order, scored on the same sheet. It is the single change that most improves the accuracy of a hiring decision, and it costs nothing. Here is a format that fits a supervisor's day.

Two rules make the format work. Ask the follow-up — "what did you actually do", not "what would you do" — because the first answer to a behavioral question is almost always a summary of the team's actions. And let the silence sit after a question; the second half of an answer is the honest half.

The question bank to draw from is on interview questions to ask candidates, with role-specific sets for CNAs, truck drivers, HVAC techs and other frontline roles. Keep the questions you are not allowed to ask off the sheet entirely; the list is on interview questions you cannot ask.

Step 4: score it during the conversation

Write the score while the candidate is still talking, not in the car park afterwards. Memory reorganizes an interview around whatever happened last, and two managers who "both liked her" often liked different things. A sheet with your three criteria, a 1–5 scale and a line of evidence beside each one takes ten seconds per criterion and turns a debrief from an argument into a comparison.

• Anchor the middle of the scale. A 3 is "does this as well as the median person already doing the job here". Without that anchor, every scale drifts upward.
• Write evidence, not adjectives. "Ran the closing alone for six months" is evidence. "Seems reliable" is a feeling.
• Score independently before you discuss. When two interviewers talk first, the second one agrees with the first about 80% of the time and you have paid for one opinion twice.
• Do not average away a zero. If someone fails the disqualifier, the other scores do not matter.

A ready-made sheet, with the rubric and the weighting, is on interview scorecard template. If the role is one where the work can be watched, a paid trial shift will out-predict any interview: see working interview.

Step 5: close, and close fast

The candidate you liked is interviewing elsewhere this week. Almost every "we lost them to a counteroffer" is really "we took nine days to decide". Three habits fix most of it.

• Decide the same day. If you cannot, tell them the date you will, and hold it.
• Offer by phone, confirm by text, paperwork the same hour. Every day between a verbal yes and a signed offer is a day someone else can move.
• Keep in touch between offer and start date. The gap before day one is where frontline no-shows happen, and a short text on the Friday before removes most of them — templates on recruiting text message templates.

Rejections matter too, and not out of politeness. The people you turn down this month are the pipeline for the same role next month, and in a trade where everyone knows each other they talk. A two-line text the same week costs nothing: recruiting email templates has the wording.

Interviewing when you are the owner and there is no HR

Most frontline interviews are run by the person who will supervise the hire, between other work, with no notice. That is fine; it is actually an advantage, because the supervisor knows what a 3 looks like. What it needs is a structure that survives being done in a hurry.

• One page, printed, per candidate. Three criteria, the questions, a 1–5 box and a line for evidence. Kept on a clipboard, it survives a shop floor.
• Two interviewers whenever possible, and only two. One asks, one writes, and they score independently.
• Block them together. Four candidates in one afternoon are far easier to rank than four across two weeks, and the calendar gap is where the good ones get hired elsewhere.
• Interview at the site, in work clothes. A candidate who sees the floor, the crew and the actual noise level self-selects, and that is a decision you did not have to make.

If you are doing this for the first hire in the business, start with how to hire employees for a small business, which covers the paperwork side that comes after the decision. If the constraint is volume rather than structure — twenty candidates for four openings — group and open interviews is the format that scales.

The four mistakes that make an interview useless

• Talking more than the candidate. If you spoke for half of it, you learned nothing and they learned they will not be listened to.
• Deciding in the first four minutes and spending the rest confirming it. The fix is mechanical: score each criterion as you reach it, so the sheet is filled in before the impression can spread.
• Asking hypotheticals only. "What would you do if" measures how someone talks. "Tell me about the last time" measures what they did.
• Selling the job before you have qualified them. Describe it honestly at the start, sell it at the end, and only to the person you want.

Interview questions for hiring managers, by what you are trying to learn

The question set below is the one to use if you are the hiring manager rather than a recruiter — which on a frontline team is usually the same person. It is organized by what each question is for, because a question you cannot name a purpose for is a question that is costing you minutes and telling you nothing.

Ask the same questions, in the same order, of every candidate for the role. That is what makes the set a structured interview rather than a conversation, and it is the difference between a process that predicts performance and one that records which candidate you warmed to. Score each answer as you hear it — the step above — rather than forming an overall impression at the end.

If you have never interviewed before

Three rules cover most of the gap. Do not talk more than a third of the time. Do not ask anything you would not ask every candidate. And do not decide in the first two minutes and spend the rest of the interview confirming it, which is the most common failure among managers who interview rarely and the reason the scorecard exists.

If you are choosing between candidates rather than assessing one, the decision method belongs on the hiring criteria page, and the questions that are not safe to ask at all are listed on illegal interview questions.

Tips for interviewers: the ten that actually change the outcome

Most interviewer advice is about poise. Almost none of it is about accuracy. These ten are the ones that change which candidate you pick, ordered by how much difference they make.

• 1. Write the criteria before you write the questions. Three things the person must be able to do, one disqualifier. Everything else is conversation.
• 2. Ask every candidate the same questions in the same order. This is the single largest accuracy gain available to you, and it costs nothing.
• 3. Score during the interview, not after. Memory reorders itself toward whoever was most likeable. A 1–5 on each criterion with a line of evidence beside it, written while they are talking, does not.
• 4. Talk less than a third of the time. Interviewers who describe the job at length feel like good interviewers and learn almost nothing. Describe the job in five minutes at the start, then stop.
• 5. Follow up twice on every answer. “What did you actually do?” then “What happened next?” The first answer is the rehearsed one; the third is usually the true one.
• 6. Ask about last month, not about hypotheticals. “Tell me about a shift last month that went badly” beats “How do you handle pressure?” every time.
• 7. Do not read the resume for the first time in the room. Two minutes beforehand, with one thing you want to ask about circled, is the whole preparation.
• 8. Keep the panel to two. Past two, you are adding scheduling delay and consensus, not accuracy.
• 9. Say the pay number out loud. If the interview ends and the candidate does not know the rate, the schedule and the start date, you have not interviewed them — you have met them.
• 10. Decide the same day. In frontline hiring the cost of a slow decision is not a worse hire, it is no hire: the candidate has taken something else.

If you only adopt two, take the second and the third. Structure and in-the-moment scoring are what separate an interview that predicts performance from one that measures how much you enjoyed the conversation.

Interview red flags, from the employer's side of the table

Search “interview red flags” and what comes back is candidate-side: warning signs about employers. This is the other half of it. And the honest version is short, because most of what gets called a red flag is an interviewer's preference in disguise.

Four things are worth weighting:

• Specifics that do not survive a follow-up. A confident answer that thins out when you ask what they personally did, and thins further when you ask what happened next, is the most reliable signal in the whole interview.
• Every previous employer was the problem. One bad workplace is a fact of frontline work. A pattern in which nothing was ever theirs to own is a pattern.
• A genuine disqualifier they will not answer plainly. If the job needs a valid license, a specific shift or a physical requirement and the answer keeps moving, take the moving answer at face value.
• No question about the work itself. Not a hard rule — people are nervous — but candidates who ask nothing about the shift, the team or the equipment often have not pictured doing the job.

And four things that get treated as red flags and should not be: a gap in the work history, short tenures in high-turnover industries, arriving without a printed resume, and nerves. Screening those out removes good frontline hires at a rate employers consistently underestimate. The structured scorecard is how you tell a red flag from a personal preference, because it makes you write down which criterion the concern actually belongs to — and some concerns turn out not to belong to any of them.

Interview training for hiring managers: a 45-minute version

Most hiring-manager training on the market is a multi-module course. If you have five managers who interview occasionally and no HR function, here is the version that fits in one meeting and captures most of the benefit.

The legal floor, stated once so everyone has heard it: no questions about age, disability, health, pregnancy, family status, national origin or religion, and no questions about salary history or criminal record earlier than your state or city allows. If a manager is unsure whether a question is permitted, the test is whether it maps to one of the three criteria on the scorecard. If it does not, it should not be asked.

Run it again once a quarter with whoever has started interviewing since. Consistency across managers is worth more than depth in any one of them, because a candidate's experience of your company is whichever manager they happened to get.