Why engineering managers fail interviews

1. “Because I got laid off” isn't an answer to “why us?”

This is coming more and more often in today's market. It's completely fine to say you were impacted by a layoff. However, that only explains why you are looking for a job, not why you want this job. If you haven't researched the product or the hiring team, and you can't articulate why you actually want to manage this specific team, it's a red flag.

2. The “people leader only” trap

I have rejected several candidates because they only showed interest in being people managers. Yes, 1-on-1s and team health are critical, but an EM is still responsible for technical execution and delivery. If you only want to be a pure people leader (very valuable, for sure) but shy away from the technical scope of the team, you won't pass, as the market is becoming more and more demanding in tech and delivery skills.

To be clear, this isn't about coding daily. The best EMs leave the hands-on work to their team; getting your hands too dirty usually hurts more than it helps. It's about staying connected to the architecture, the key deliveries, and the system metrics, so you can hold a technical direction and be accountable for what the team ships.

3. Ignoring the specific context of the role

This usually stems from a lack of research. For example, I was hiring for an internal product team, and candidates showed up completely unprepared to talk about internal adoption, stakeholder management, and those specific metrics. Every EM role is a different job under the same title, so find out which one you're walking into. The 2026 Tech Interview Report lays out how the loop shifts by context.

4. Underpreparing for the technical deep dive

Some candidates completely fail to revise their past projects before the interview. If you can't smoothly answer technical questions on systems you previously managed, or the core technologies required for the job, it shows either a lack of preparation or a massive knowledge gap.

One thing that catches EMs off guard: many loops still include a coding screen or a system design round, even though you rarely code day to day. If you get a coding question, they're testing how you reason and perform under pressure, not whether you remember the exact syntax, so talk through the logic and the trade-offs with confidence. For system design, the more time you've spent in management, the more you'll want to refresh the basics beforehand; a couple of system design books and some focused practice go a long way. I practised on LeetCode hard for about a month before my own interviews.

5. Vague impact and rambling

Too many candidates give vague answers that completely hide their personal impact behind what “we” (the team) did. It's seen as a red flag when a CV presents massive impact on delivery and revenue, but the candidate doesn't show that same depth in the interview. If you claim to have driven a massive win on paper, you must be prepared to talk deeply about it. When candidates fail to elaborate on their biggest listed achievements, it makes me wonder if they actually drove that impact.

None of this means claiming everything as “I”. Sharing credit with your team is good leadership and a sign of a mature culture; the bar is simply that you can explain your own scope and impact honestly when asked, not that you erase yourself from the story.

6. Not asking the right questions at the right moment

Some candidates ask too many questions when the interview just gets started; some skip, or don't ask enough interesting questions, at the end. It's all about timing and quality in those questions.

An interview is indeed a chance for both sides to evaluate each other, but if you don't leave time for the interviewer to dig into your answers, you're hurting yourself. So leave your biggest question to the end.

When it's your turn to ask questions, if you aren't asking high-quality questions, for example, about the engineering culture, the product roadmap, or the team's biggest bottlenecks, it reads as a lack of motivation, curiosity, or knowledge. It happened several times that I passed a candidate to the next round because her questions were spot-on despite previous pitfalls in her answers. There's more in my guide on questions to ask the interviewer.

Two things that are easy to underrate. First, show genuine enthusiasm for the role. More senior candidates often come across as jaded, and real interest in the team and the problem goes a long way, on top of showing your competence, not instead of it. Second, remember the interview runs both ways: you're also deciding whether you'd commit the next few years here, so ask the questions that would make you confident it's the right call.

That's the list. None of these are about being underqualified; they come down to preparation and self-awareness, and every one of them is fixable. If you want to add to it, the original thread is over on Reddit. For the full loop and the M1/M2 failure modes, see the Engineering Manager interview guide.