Common Interviewer Mistakes in Candidate Evaluation

Red flags during interviews. What a candidate experiences in your interview process tells them everything they need to know about working with you. Here’s what makes great candidates run in the other direction: 🚩 The interviewer shows up late—or worse, not at all. You expect punctuality and professionalism from candidates, but when the tables turn, suddenly it’s OK to be 10 minutes late? 🚩 No clarity on what happens next. “We’ll be in touch soon” is not a process. If you don’t have a defined timeline, it signals disorganization and lack of respect for the candidate’s journey. Be transparent. Give dates. Follow up. 🚩 The team gives inconsistent or conflicting answers. If one interviewer says the role is remote and another says it’s hybrid, or if the description of success changes from person to person, it makes the whole opportunity feel shaky. Candidates wonder: Do they even know what they’re hiring for? 🚩 No time for candidates to ask you questions. Interviews should be a two-way street. If your process is all interrogation and no conversation, don’t expect engagement. The best candidates are interviewing you just as much as you’re interviewing them. Reminder: You are not just evaluating candidates—they’re evaluating YOU. If you’re ghosting, vague, or disorganized in your interview process, don’t be surprised when your best applicants drop out. They’ve already gotten a preview of your leadership and culture—and they’ve decided to pass.

Don’t ignore red flags. Trust your gut. After a year of building SparkGen, I’ve seen thousands of interviews (first- and second-hand), and these are the top 8 red flags to watch out for: — The High Performer Guise: When an interviewer uses their supposed “high bar for excellence” to justify being rude or making the candidate feel small. — Toxic Hustle Culture: When describing the culture of the firm, the interviewer uses the term “work hard, play hard,” glorifies a lack of boundaries or demonizes taking rest. — Perks as Culture: Self explanatory, but when an interviewer lists benefits or perks as the company culture. — De Facto Micro-Management: When an interviewer justifies micro-management as necessary and good until the candidate “proves” themselves. (In all likelihood, that time will never come.) — Lone Wolf Mentality: When a company operates on a company culture that prioritizes and rewards individual contributions rather than effective teamwork and collaboration. — Final Round Hazing: If, after a comprehensive set of interviews, the interviewer decides to haze or blitz the candidate in an attempt to purposefully eliminate them and/or test their mettle under last-minute pressure. — Intolerance of Disagreement: When the interviewer is unable to tolerate disagreement and becomes flustered, dismisses the candidate’s opinions and/or retaliates. — Lack of Respect: The interviewer does not come to the interview prepared with knowledge of the candidate’s background, and/or the interviewer treats the interview as doing the candidate a favor. The takeaway? Interviewing is a two-way street of mutual respect, so don’t ignore these red flags. Good luck!

Let’s be honest — most bad hires don’t happen because of “bad candidates.”  They happen because of bad interviews. You wrote the job description.  You chose where to post it.  You screened the resumes.  You ran the interviews.  You held all the cards. So when the hire doesn’t work out...  it’s time to look in the mirror instead of pointing fingers at Gen Z, the education system, or “the talent.” The problem usually isn’t the candidate.  It’s the process. After 20 years in executive recruiting, I’ve seen these same 10 interview mistakes tank otherwise great hiring decisions over and over again  ________________________________________ 1️⃣ Talking more than you listen. If you’re doing 80% of the talking, you’re not interviewing — you’re performing. 2️⃣ Hiring the résumé, not the person. A LinkedIn profile doesn’t tell you about grit, curiosity, or emotional intelligence. 3️⃣ Asking cookie-cutter questions. “Where do you see yourself in five years?” “What’s your greatest weakness?” Every candidate over 18 already has prepped answers for those. You’ll learn nothing real. 4️⃣ Falling in love with credentials. A degree looks nice on paper. But how many MBAs have you seen who can’t lead people or close deals? 5️⃣ Skipping the real talk. If you don’t zero in on the actual job problems they need to solve, how will you know if they can handle them? 6️⃣ Over-relying on behavioral clichés. “Tell me about a time when…” isn’t terrible — but it’s tired. Try laying out your current challenge and asking how they’d tackle it. 7️⃣ Clinging to outdated questions. “What would your last boss say about you? If you wouldn’t ask it in a real-life conversation, don’t ask it in an interview. 8️⃣ Reading from a script. Interviews aren’t tests. They’re conversations. Drop the checklist and connect like a human being. 9️⃣ Turning hiring into a math equation. Years of experience + degrees + perfect reference ≠ the best fit. Judgment and chemistry matter just as much. 🔟 Rejecting people who don’t tick every box. Some of the best hires I’ve seen were the ones who looked “imperfect” on paper — but nailed the role in reality. ________________________________________ Here’s what 20 years in this business has taught me  The best hires aren’t the ones with perfect résumés or shiny credentials. They’re the ones who: ✅ Understand your business pain. ✅ Can talk through how they’ve solved something similar before. ✅ Think on their feet and ask smart questions that make you lean in. They’re awake. Aware. Engaged. So stop treating interviews like interrogations. Start treating them like conversations between two professionals solving a problem together. Because when you get that part right — the “perfect candidate” suddenly becomes a lot easier to find. ________________________________________ Great hiring doesn’t start with flawless applicants. It starts with better conversations. #leadership #recruiting #hiring #interview #talentacquisition #growth

If a job applicant said "I have no idea how to grow your startup" would you hire them as your VP of Growth? (Because I probably would). Wait, hear me out… If there was an obvious way to grow your startup, you'd already have done it. If you haven’t, you're betting on your next hire to help figure it out. But candidates with the most confidence often, paradoxically, have the hardest time uncovering new ideas, thanks to the “illusion of knowledge bias.” 𝗧𝗵𝗲 𝗶𝗹𝗹𝘂𝘀𝗶𝗼𝗻 𝗼𝗳 𝗸𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗯𝗶𝗮𝘀 - Individuals mistakenly believe they possess a deeper understanding of a topic than they actually do. They overestimate their knowledge and fail to recognize the gaps in their understanding, leading to poor decision-making and an unwillingness to seek further information. Wait, it gets worse - Commitment & consistency bias If they claim to know the right strategy, they will become anchored to that approach, even if it's incorrect, thanks to the Commitment & Consistency bias. (That's the one that says: After we state a position, we’re far more likely to act in accordance with that belief, even if it’s incorrect, and less likely to consider alternatives.) What should you do instead? When interviewing candidates, focus less on how much they know, and more on how quickly they can figure things out. That starts the moment a candidate walks in the door. People are uncomfortable admitting “I don’t know” — especially in a job interview! So take a moment to create space for humility and candor in the conversation. Talk about your own mistakes and blind spots, and explain that you don’t expect people to have all the answers – only to figure them out. Then ask questions about their experience finding and applying new information, such as: 1. Tell me about a time when you were wrong about something? How did you find out? And what did you do as a result? 2. What’s something you learned recently from your customers or your data that surprised you? What did you do with that information? 3. Looking at our business, what things do we need to figure out before we can scale? And how do you suggest we bottom those things out? 4. Tell me about a time when you had to tell your boss they were wrong, how did that conversation go? These aren’t easy questions, give them time to think. As they’re answering, focus on what they say plus how they say it. Are they comfortable talking about surprises and unknowns? Simple next step Be honest with yourself, are you hiring a VP of “drive it like you stole it” or a VP of “figure out how to grow my business?” If you need someone to figure it out, hire with that explicit mandate, and ask the whole team to do everything they can to support the discovery process. By the way, this approach can also unlock thinking in your existing team. Helpful? Follow me for more Matt Lerner .

Here's 16 common hiring mistakes ranked by how hard they are to solve: EASY FIXES 1. Copy-paste job posts Still using that job description from 2015? The one that says "must be a team player" and "5+ years experience required"? You're filtering out incredible talent who assume you're another boring company. 2. Slow response time Taking 2 weeks to email candidates back? They've already accepted another offer. The best people have options. 3. No interview prep Watched too many interviewers walk in cold and ask "so tell me about yourself" for 45 minutes. Create a simple question bank. Train your team. 4. Unclear next steps "We'll be in touch" is where good candidates go to die. Tell them exactly what happens next. Basic respect that most companies miss. STANDARD PROBLEMS 5. Wrong interviewers Your backend engineer interviewing salespeople because "they were free"? Stop it. Match interviewers to roles. Train them on what to look for. Bad interviewers drive away good candidates. 6. No scorecard One person loves them because they're "smart." Another hates them because they're "too aggressive." Meanwhile you have no idea what actually matters for success. Build scorecards before you interview anyone. 7. Poor selling Interviews are two-way. You're so busy evaluating them, you forget to explain why they should drop everything to join your vision. Sell that vision. 8. Bad timing Three month interview processes for a senior role? They're gone. Match process to seniority. Move fast on junior roles. Go deep on senior ones. DEEP ISSUES 9. No success metrics "We need someone good" isn't a hiring strategy. What does success look like in 30/60/90 days? What metrics matter? If you can't define winning, you can't hire winners. 10. Bias in process Hiring people because they went to Stanford or remind you of yourself? You're building a monoculture that will fail. 11. Zero feedback That amazing candidate who didn't quite make it? They'll trash you on Glassdoor if you ghost them. Or they'll improve and be perfect next year if you give them real feedback. Most companies choose ghosting. 12. Pipeline neglect Only recruiting when someone quits is like only eating when you're starving. Build relationships before you need them. CRITICAL PROBLEMS 13. Role design failure Badly designed roles attract desperate people, not talented ones. Period. 14. Unrealistic expectations Want someone with 10 years experience, startup hustle, and enterprise polish? Cool. That person makes $500K at Google. You're offering $120K and some options. Math doesn't work. 15. Toxic culture You can hire all the A-players you want. If your culture sucks, they'll leave in 6 months. Then you're back to hiring, except now you have a reputation. Fix the culture or stop wasting everyone's time. 16. No hiring strategy Making it up as you go works until it doesn't. Usually around 20 people when everything breaks. What else would you add? 👇

Title ≠ Seniority One of the most common hiring mistakes I see is evaluating candidates without properly calibrating for seniority. The way you assess a Director should not be the same as how you assess a mid-level professional. Seniority shows up in: The type and depth of questions they ask The complexity of their examples Level of ownership and autonomy Strategic vs. execution thinking Scope of impact and decision-making Over the years, I’ve interviewed many candidates with “Senior/Leadership” titles who, after evaluation, were not operating at that level for the role and environment we were hiring for, often due to gaps in complexity, exposure, or autonomy. There’s nothing wrong with that. Titles vary widely across companies. But what is critical: Be very clear on the level of seniority your organization truly needs, and assess accordingly. Misalignment here leads to the wrong hires, slower execution, and leadership gaps. Calibrate first. Hire second.

A common mistake I see first-time founders and new managers make when interviewing is asking candidates, "What would you do in X scenario?" This approach is flawed - anyone can craft a good answer to a hypothetical. Instead, focus on past behavior and transferable skills by asking for specific examples "tell me about a time when..." or "give me an example of when you..." These questions reveal real experiences and allow candidates to showcase relevant skills, even if they haven't faced the exact situation before. Rather than asking "How would you influence someone you don't directly manage?", try "Can you tell me about a time when you've had to influence a cross-functional stakeholder?" By focusing on past experiences and adaptable skills, you gain valuable insights into how a candidate actually handles challenges and how they might apply their skills to new situations.

When we talk about biases in recruiting, it's often brought up in the context of Diversity efforts... But understanding where human decision making can be faulty should just be part of creating sound hiring decisions. Some common cognitive biases that I see influence recruiting decisions ALL the time: 1. Halo Effect: Halo effect occurs when an interviewer's overall impression of a candidate is disproportionately influenced by one positive trait, leading them to overlook other, potentially critical, aspects of the candidate's profile. Example: A candidate with excellent verbal skills might leave such a strong impression that interviewers overlook gaps in technical knowledge or expertise necessary for the job. 2. Priming: Priming involves being influenced by prior information. In recruitment, it can happen when an interviewer's expectations are subtly influenced by information seen or heard before the interview. Can also lead to Anchoring. Example: An interviewer overhears that a candidate has been strongly recommended by a trusted colleague. 3. Confirmation Bias: The tendency to search for, interpret, favor, and recall information in a way that confirms one's preconceptions or hypotheses, often ignoring contradictory evidence. Example: If you believe that X companies have solid Engineers, might pay more attention to evidence that supports this belief and ignore evidence to the contrary. 4. Sunk Cost Fallacy: The more resources (time, money, effort) one invests in a decision, the harder it becomes to abandon it, even if it's not the best course of action. Example: A hiring team might continue investing time in a candidate they've spent weeks courting, despite emerging evidence that the candidate may not be a good fit, simply because they've already invested so much in the process. 5. Contrast Effect: The enhancement or diminishment of a weight or other measurement when compared with a recently observed contrasting object. Example: If a particularly weak candidate is interviewed before a slightly above-average candidate, the latter may appear more competent than if assessed independently, simply due to the contrast. These are just a few of many that may come up in interviewing. Completely eliminating them is impossible so instead, I suggest trying to spread awareness to interviewers, hiring manager and recruiters during training. Just knowing that these are in play can trigger interviewers to catch themselves or point out when these are showing up to each other. #recruiting #techrecruiting #hiring #techhiring

If you’re hiring right now, you need to be aware of these mistakes. If you’re looking for a job, maybe you can learn something from these. 7 Ways People Screw Up Hiring: – Mistake #1: Horns and halo biases Human beings are quick to jump to conclusions. We can move forward decisively, but we’re vulnerable to all sorts of cognitive biases. The Horns Effect is when our perception of somebody is unduly influenced by a single trait we see as negative. The Halo Effect is the opposite: one positive trait can make us feel overly positive about a person as a whole. – Mistake #2: Urgency bias A great hire is one of the highest-value things you can get right. Hiring the wrong person is an extremely expensive mistake. In hiring, many people put too much weight on the pain of that position being open. “X can’t move forward until this hire is complete,” or “Filling X position will take so much off my plate.” It takes twice as long (or more!) to find an A-player candidate, but that’s worth 10x in the long run. – Mistake #3: Not checking references 2/3rds of resumes stretch the truth or outright lie. A smart person can make their resume tell any story they want. A second-order mistake people make here is only calling the references a candidate provides. If you tell a candidate that you do 5 hours of reference calls, it it tends to scare off a lot of bad candidates. – Mistake #4: A super-narrow candidate pool Some jobs have no wiggle room when it comes to experience. Pilots, nuclear technicians, and tapdancing instructors all need direct work experience to succeed. But for lots of other roles, it can help to keep an open mind when it comes to background. Personally, I like hiring young people to leadership positions: It gives them an opportunity they’re thrilled about, They’re open to influence and training, and they’re hungry. Keep an open mind. – Mistake #5: Keeping your candidates in the dark Let’s assume you’ve landed on a good hiring system. If it’s not transparent to your candidates, you’re going to see people walk away or count themselves out. When applicants see a clear, organized process, and understand how they fit into it, they’re more likely to stick it out. – Mistake #6: Ignoring your gut Our brains are constantly building a subconscious database of information. So if you’ve got a bad feeling about a candidate, dig deeper. Note that I’m not saying trust your gut blindly. But try to find what’s setting off your radar. Look for biases. Look for evidence. If you can’t figure it out, talk it through with someone you trust. – Mistake #7: Wanting perfection Most people want to bat 100% in hiring. It’s a bad way to think about it. Because it leads you to only hire “safe” candidates with low ceilings. People are just too complex and every situation differs. I step back and think about my hit rate. Can I hit 60-70% hiring A-players?