Interview Best Practices
Overview
This skill provides guidance on designing effective interview processes, asking good questions, and evaluating candidates fairly and consistently.
Interview Process Design
Standard Interview Stages
| Stage | Purpose | Duration | Who |
|---|---|---|---|
| Phone Screen | Qualification, mutual fit | 30 min | Recruiter or hiring manager |
| Hiring Manager | Role fit, experience | 45 min | Hiring manager |
| Technical/Skills | Domain expertise | 60 min | Senior IC or specialist |
| Team Fit | Collaboration, values | 45 min | Future teammates |
| Executive/Final | Culture, closing | 30 min | Founder or executive |
Principles
- •Consistency: Same process for all candidates at same level
- •Structured: Use scorecards, not gut feel
- •Efficient: Respect candidate time, minimize rounds
- •Transparent: Tell candidates what to expect
- •Inclusive: Train interviewers on bias, diverse panels
Structured Interviewing
Why Structure Matters
Unstructured interviews are poor predictors of job performance. Structured interviews:
- •Ask same questions to all candidates
- •Use defined evaluation criteria
- •Rate on specific competencies
- •Reduce bias in decision-making
Competency-Based Evaluation
Define 4-6 competencies per role, then assess each:
Example: Senior Engineer
- •Technical problem-solving
- •System design
- •Code quality and testing
- •Collaboration and communication
- •Ownership and initiative
- •Learning and growth
Rating Scale
| Score | Definition |
|---|---|
| 1 | Does not meet - Significant gaps |
| 2 | Partially meets - Some gaps |
| 3 | Meets expectations - Would succeed |
| 4 | Exceeds - Above average for level |
| 5 | Strongly exceeds - Exceptional |
Anchor each score with specific examples for the role.
Question Types
Behavioral Questions
Ask about past experience. Best predictor of future behavior.
Format: "Tell me about a time when..."
Examples:
- •"Tell me about a time you had to make a decision with incomplete information."
- •"Describe a situation where you disagreed with a teammate. How did you handle it?"
- •"Give me an example of a project that didn't go as planned. What did you learn?"
Follow-up probes:
- •"What was the result?"
- •"What would you do differently?"
- •"How did others react?"
Situational Questions
Present hypothetical scenarios relevant to the role.
Format: "Imagine you're in this situation... How would you approach it?"
Examples:
- •"You inherit a codebase with no tests. How do you prioritize what to test first?"
- •"A key customer is threatening to churn. What's your approach to the conversation?"
- •"Your team is behind on a deadline. What do you do?"
Technical Questions
Assess domain-specific knowledge and skills.
Types:
- •Coding exercises
- •System design
- •Domain knowledge
- •Portfolio/work review
Best practices:
- •Mirror actual work they'd do
- •Allow multiple valid approaches
- •Assess thinking process, not just answer
Values/Culture Questions
Assess alignment with company values.
Examples:
- •"What kind of work environment brings out your best work?"
- •"How do you give feedback to teammates?"
- •"Tell me about a time you took initiative beyond your role."
Questions by Interview Stage
Phone Screen (30 min)
Goals: Qualification, logistics, mutual interest
Sample questions:
- •Walk me through your background and what brings you to this opportunity
- •What are you looking for in your next role?
- •[1-2 role-specific qualifying questions]
- •What questions do you have about the role or company?
Logistics to cover:
- •Compensation expectations
- •Start date availability
- •Location/remote preferences
- •Visa status if relevant
Hiring Manager (45 min)
Goals: Role fit, experience depth, working style
Sample questions:
- •What accomplishment from your last role are you most proud of?
- •Tell me about a challenging project and how you approached it
- •How do you prioritize when everything feels urgent?
- •What feedback have you received that you've acted on?
- •What would your manager say are your strengths and growth areas?
Technical/Skills (60 min)
Goals: Domain expertise, problem-solving, quality bar
Structure varies by role:
- •Engineering: Coding, system design, debugging
- •Product: Product sense, prioritization, analytics
- •Sales: Discovery, objection handling, pitch
- •Design: Portfolio review, critique, process
Team Fit (45 min)
Goals: Collaboration, communication, values alignment
Sample questions:
- •How do you like to receive feedback?
- •Tell me about a time you helped a teammate who was struggling
- •Describe your ideal working relationship with [other function]
- •What's something you believe that most people disagree with?
- •What do you do when you disagree with a decision that's been made?
Executive/Final (30 min)
Goals: Culture fit, closing, answering questions
Sample questions:
- •Why this company at this stage?
- •What would make you wildly successful in this role?
- •What questions do you have about our strategy or vision?
Closing:
- •Share enthusiasm (if genuine)
- •Outline next steps and timeline
- •Ask about their timeline and other processes
Avoiding Bias
Common Biases
| Bias | Description | Mitigation |
|---|---|---|
| Affinity | Favoring similar people | Diverse interview panels |
| Halo/Horn | One trait colors all ratings | Rate competencies separately |
| Confirmation | Seeking info that confirms initial impression | Structured questions |
| Recency | Overweighting recent answers | Take notes throughout |
| Leniency/Strictness | Rating everyone high/low | Calibrated rating scale |
Inclusive Interviewing
- •Use consistent process for all candidates
- •Train interviewers on bias
- •Diverse interview panels
- •Evaluate against job requirements, not "culture fit"
- •Give candidates context and preparation material
- •Provide accommodations as needed
Making Decisions
Debrief Process
- •Interviewers submit written feedback before debrief
- •Share scores independently (prevent anchoring)
- •Discuss specific evidence for each competency
- •Identify and address disagreements
- •Make hire/no-hire recommendation
Decision Framework
| Outcome | Criteria |
|---|---|
| Strong Hire | Multiple 4-5 ratings, no major concerns |
| Hire | Meets bar on all competencies, no red flags |
| No Hire | Below bar on key competency, significant concern |
| Strong No Hire | Multiple gaps, fundamental misalignment |
When to Pass
- •"Not right for this role" is valid - don't lower bar
- •Trust red flags from multiple interviewers
- •Strong no-hires are just as important as strong hires
- •Document concerns for potential future roles
Additional Resources
For role-specific interview guides, see:
- •
references/engineering-interviews.md- Technical interview guidance - •
references/sales-interviews.md- Sales assessment guide - •
references/behavioral-questions.md- Question bank by competency