# How do you interview as a hiring manager?

**A hiring interview** starts with asking consistent questions that reveal behavior, reasoning, and learning. As the hiring manager, define the evidence you need before meeting candidates, use the same relevant standard for everyone, and record observations before discussion. The goal is not to find a flawless person. It is to make a responsible choice about who can succeed in the actual engineering role with the support your team can provide.

        
## Why does this stage matter for a first time hiring manager?

        
Your first hiring process can feel like a test of instinct. It is not. It is a management system that turns uncertain information into a decision. An interview is useful only when it adds evidence that the role and screen could not provide, rather than repeating a resume conversation. A clear system helps you notice what you know, what you are assuming, and what still needs evidence.

        
Engineering hiring adds technical complexity, but technical depth is only one part of success. A backend engineer may need to diagnose production behavior, explain tradeoffs, work through incomplete requirements, and ask for help before risk grows. A platform engineer may need to influence teams that do not report to them. The process must examine real work, not just recall.

        
Structure also protects candidate time. Applicants can prepare when they know what each conversation covers. Interviewers can focus when they know their question and decision. A professional process does not need to be rigid. It needs a clear purpose, a fair standard, and room to follow useful evidence.

        
## What should you decide before taking action?

        

          - Write the three outcomes the person must own in the first year.

          - Name the engineering context that makes those outcomes difficult.

          - Separate skills needed on day one from skills that can be learned.

          - Choose evidence that would raise or lower confidence for each outcome.

          - Assign one person to gather each important piece of evidence.

          - Agree how notes, concerns, and decisions will be recorded.

        

        
These choices prevent a common failure: changing the standard after meeting an impressive candidate. If one applicant has deep Kubernetes knowledge, the team may suddenly treat that knowledge as essential even when the role needs service ownership and clear communication more. Return to the outcomes and ask whether the new signal changes the work or only changes enthusiasm.

        
Decide what you will not assess. Avoid questions about private life, protected characteristics, or personal circumstances that do not determine performance. Do not use shared hobbies, familiar employers, or similar communication style as evidence of ability. Familiarity feels comfortable, but comfort is not a hiring criterion.

        
## Which evidence is useful?

        
| Question | Strong evidence | Weak shortcut |
| --- | --- | --- |
| How do they debug? | A concrete path through uncertain signals | Naming many tools |
| How do they design? | Tradeoffs tied to constraints | One fashionable architecture |
| How do they collaborate? | Specific actions during disagreement | Being easy to talk with |
| How do they learn? | Changed behavior after evidence | Claiming constant curiosity |

        
Strong evidence is connected to work and specific enough to examine. A candidate saying they care about quality is weak evidence. A candidate explaining how they found a risky migration assumption, changed the rollout plan, and measured the result is stronger. Ask what the person did, what constraints existed, and what happened next.

        
Evidence still needs interpretation. One answer can reflect opportunity as much as ability. Someone from a small company may have broad ownership but little exposure to formal architecture review. Someone from a large company may have deep scale experience within a narrow area. Compare the demonstrated reasoning with the role rather than treating company size as a score.

        
## How do you keep the process fair?

        
Use consistent questions and scoring anchors for evidence that matters. Consistency does not mean reading a script without listening. It means every candidate gets a real chance to demonstrate the same capabilities. Follow up questions can differ when they clarify an example, but they should not quietly make one person's assessment much easier.

        
Provide reasonable context before asking for a solution. Engineers do not work in a vacuum, so a mystery puzzle rarely predicts performance. Explain the system, constraints, and desired outcome. Let candidates ask questions. Observe how they frame uncertainty, test assumptions, and communicate choices.

        
Accessibility is part of fairness. Tell candidates what format to expect, offer a clear route to request adjustments, and avoid rewarding speed when speed is not part of the role. A person may reason well while needing more reading time, a quieter format, or a different way to enter code. Assess the capability, not an unnecessary obstacle.

        
## How should interviewers record what they learn?

        
Notes should capture behavior, context, and the connection to a criterion. Write, “Candidate identified the missing rollback plan and proposed a limited release,” rather than, “Strong senior energy.” The first note can be discussed. The second mostly records the interviewer's feeling.

        
Ask interviewers to submit notes before the group discussion. Early opinions can anchor everyone else, especially when expressed by a senior leader. Independent notes preserve differences that deserve examination. They also reveal when interviewers used different standards or gathered too little evidence.

        
Keep records professional and limited to hiring. A candidate may later request access depending on local law and company policy. Even when they never see the notes, write as if you would be comfortable explaining each sentence. Respectful records support better decisions and reduce careless speculation.

        
## What mistakes should a new hiring manager avoid?

        
The first mistake is rushing because the team is busy. An empty role creates pressure, but a confused process creates rework and can lead to a poor match. Set a realistic schedule, reserve interviewer time, and make decision meetings before applications arrive. Urgency should shorten waiting, not weaken the standard.

        
The second mistake is searching for a copy of the person who left or the strongest engineer already on the team. The work may have changed. The team may need a different balance of skills. Define the future outcome, then identify which capabilities are essential and which can be supported by peers.

        
The third mistake is confusing confidence with competence. Some candidates answer quickly and use familiar terms. Others pause, ask careful questions, and expose uncertainty. Engineering work rewards accurate judgment more than polished certainty. Look for reasoning, learning, and responsibility, especially when an example did not go as planned.

        
## How can engineering examples improve the process?

        
Use scenarios that resemble the role without asking candidates to do free company work. For a service engineer, discuss an API whose latency rose after a release. For a mobile engineer, examine an offline data conflict. For an engineering lead, explore how they would respond when delivery pressure conflicts with a reliability concern.

        
A useful scenario has enough detail to begin and enough uncertainty to invite questions. It should allow several reasonable approaches. The evaluator can then observe problem framing, tradeoffs, communication, and response to new information. A scenario with one hidden answer mostly tests whether the candidate guesses the interviewer's preference.

        
Review examples after several candidates. If nearly everyone misunderstands the same prompt, the prompt may be unclear. If an exercise strongly favors people who know one library that the role can teach, revise it. The process should improve through evidence just as an engineering system does.

        
## How should you work with recruiters and interviewers?

        
Give partners a concise brief that states outcomes, required evidence, flexible areas, and decision timing. Recruiters can then explain the role accurately and screen for relevant signals. Interviewers can prepare a focused conversation. Alignment at the start saves repeated clarification later.

        
Invite challenge. A recruiter may notice that the market does not use your internal title. An engineer may see that an exercise assumes knowledge the role does not need. Listen, then make the standard explicit. Collaboration works when feedback changes the process through a visible decision, not through private exceptions.

        
Protect partner time by closing loops. Tell interviewers what was decided and what the team learned, while respecting candidate privacy. Update the brief when the role changes. People participate more thoughtfully when their evidence matters and when the hiring manager does not disappear after collecting it.

        
        
## How does this step connect to the full hiring path?

        
This step sits inside a five part path: define the role, screen applicants, run interviews, make the decision, and present the offer. Treating the interview as an isolated task creates inconsistency. Information from this step should answer the same role outcomes defined at the start and should prepare the next decision without forcing candidates to repeat themselves.

        
The hiring manager owns continuity. Recruiters and interviewers contribute expertise, but they should not have to guess what evidence matters. Write down what this step must establish, who will collect it, and how the result will be used. That small agreement reduces delay and makes the candidate's experience more coherent.

        
## How do you make the final call at this stage?

        
Return to the role outcomes and summarize confidence, concern, and missing evidence. Conclude each interview with criterion level evidence, confidence, and open questions before hearing anyone else's recommendation. Do not average every observation into a vague score. A serious gap in an essential capability matters more than several pleasant but irrelevant signals.

        
Distinguish a lack of evidence from negative evidence. If nobody assessed incident leadership, you cannot conclude that the candidate lacks it. You can add a focused conversation or accept the uncertainty if the capability can be learned. Naming the difference prevents unsupported rejection and false confidence.

        
Set a deadline for the stage and communicate promptly. Candidates make decisions about several companies, and silence damages trust. If the team needs more time, explain what remains and when the next update will arrive. Reliability during hiring shows how the organization handles commitments.

        
## What should you do next?

        
Gather independent notes, resolve conflicting evidence, and move into a decision discussion that compares each candidate with the role rather than with one another. Before moving on, check that the record contains the criterion, evidence, concern, and owner for any open question. A clean handoff prevents later conversations from repeating work or inventing a new standard.

        
After the process closes, hold a short review with recruiting and the interview team. Ask where candidates waited, which questions produced useful evidence, where standards drifted, and what should change before the next role. Keep the review about the hiring system, not about blaming a candidate or interviewer.

        
A first time hiring manager does not need perfect prediction. You need a role grounded in real work, relevant evidence gathered with care, and a decision you can explain. That discipline gives candidates a respectful experience and gives your engineering team a stronger basis for choosing its next colleague.

## What are common questions?

### What should a hiring manager ask in an interview?

Ask for specific examples and realistic reasoning connected to the role's outcomes, risks, collaboration needs, and learning demands.

### Should every candidate receive the same questions?

Use the same core questions and criteria, with relevant follow up questions that clarify each candidate's evidence.

### Are coding exercises necessary?

Only when writing or reviewing code is important to the role and the exercise resembles the work without demanding unpaid company work.

### When should interviewers submit feedback?

They should submit evidence and ratings independently before the group discussion to reduce anchoring and status influence.

### How many interviews are enough?

Use the fewest interviews needed to gather reliable evidence for essential criteria. More interviews do not automatically improve prediction.

Related: [hiring as a first time manager](https://isilta.com/blog/how-to-hire-as-a-first-time-manager/), [screening engineering candidates](https://isilta.com/blog/how-to-screen-engineering-candidates/), [choosing between candidates](https://isilta.com/blog/how-to-choose-between-candidates/).