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Site Reliability Engineer (SRE) interview questionsTechnical Interview round
A 60 min interview plan with a time-boxed script, what each question is for, and the signals to score against. Key skills: Reliability Engineering, System Performance, Monitoring Tools, Capacity Planning, Automation.
Reliability Engineering
10 min
What this section is for
Purpose
Assess understanding of reliability engineering principles and practices.
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Can you explain what Site Reliability Engineering means to you and how it differs from traditional IT operations?
What this question is for, and what to listen for
Purpose
Evaluate understanding of SRE principles and differentiation from IT operations.
Signals to score
- Clear definition provided
- Differences from IT operations explained
- Mention of automation
- Focus on reliability
- Understanding of SRE principles
- Examples from experience
- Mention of monitoring
Follow-up questions
- How does SRE integrate with development teams?
- What role does automation play in SRE?
- Can you give an example of a reliability challenge you faced?
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How do you approach incident management and post-mortem analysis?
What this question is for, and what to listen for
Purpose
Assess problem-solving skills and understanding of incident management.
Signals to score
- Structured approach described
- Importance of post-mortems highlighted
- Focus on learning from incidents
- Mention of tools used
- Examples from past experiences
- Emphasis on prevention
- Collaboration with teams
Follow-up questions
- What steps do you take during an incident?
- How do you ensure incidents are not repeated?
- Can you describe a challenging incident you managed?
System Performance and Monitoring Tools
10 min
What this section is for
Purpose
Evaluate knowledge of system performance optimization and monitoring tools.
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What tools and techniques do you use for monitoring system performance?
What this question is for, and what to listen for
Purpose
Assess familiarity with monitoring tools and techniques.
Signals to score
- Mention of specific tools
- Understanding of tool capabilities
- Examples of usage
- Focus on performance metrics
- Experience with alerts
- Integration with other systems
- Continuous improvement
Follow-up questions
- What metrics do you consider most important?
- How do you handle false positives in alerts?
- Can you describe a time you improved system performance?
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How do you ensure systems are scalable and performant under load?
What this question is for, and what to listen for
Purpose
Evaluate understanding of capacity planning and performance optimization.
Signals to score
- Mention of load testing
- Use of performance metrics
- Examples of scalability improvements
- Understanding of bottlenecks
- Experience with capacity planning
- Collaboration with development teams
- Continuous monitoring
Follow-up questions
- What tools do you use for load testing?
- How do you identify performance bottlenecks?
- Can you share an example of a scalability challenge you solved?
Automation and Problem-solving
10 min
What this section is for
Purpose
Assess skills in automation and problem-solving.
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Can you describe a situation where you automated a repetitive task? What was the outcome?
What this question is for, and what to listen for
Purpose
Evaluate automation skills and impact on efficiency.
Signals to score
- Clear description of task
- Tools or scripts used
- Outcome and impact
- Focus on efficiency
- Examples of time saved
- Collaboration with team
- Continuous improvement
Follow-up questions
- What tools did you use for automation?
- How did you measure the impact?
- Can you describe a challenge you faced during automation?
•
How do you prioritize tasks when faced with multiple urgent issues?
What this question is for, and what to listen for
Purpose
Assess time management and task ownership skills.
Signals to score
- Structured prioritization approach
- Consideration of impact
- Communication with stakeholders
- Examples from experience
- Focus on critical tasks
- Use of tools for tracking
- Collaboration with team
Follow-up questions
- How do you determine task urgency?
- What tools do you use for task management?
- Can you give an example of a time you managed multiple urgent tasks?
Collaboration Skills
10 min
What this section is for
Purpose
Evaluate collaboration skills and ability to work in a team.
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How do you ensure effective communication and collaboration with development teams?
What this question is for, and what to listen for
Purpose
Assess collaboration and communication skills.
Signals to score
- Clear communication strategies
- Examples of collaboration
- Use of collaboration tools
- Focus on shared goals
- Experience with cross-functional teams
- Problem-solving together
- Continuous feedback
Follow-up questions
- What tools do you use for team communication?
- How do you handle conflicts in a team?
- Can you describe a successful collaboration experience?
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Describe a time when you had to collaborate with a team member to solve a problem. What was the outcome?
What this question is for, and what to listen for
Purpose
Evaluate problem-solving and teamwork skills.
Signals to score
- Clear problem description
- Collaboration approach
- Outcome and impact
- Examples of teamwork
- Focus on shared goals
- Communication strategies
- Learning from experience
Follow-up questions
- How did you approach the problem together?
- What was your role in the collaboration?
- Can you describe a challenge you faced during the collaboration?
Closing
5 min
What this section is for
Purpose
Thanks the candidate for their time, provides next steps, and leaves a positive final impression.
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Do you have any questions for me about the team or the company?
What this question is for, and what to listen for
Purpose
Gauge the candidate’s curiosity and interest in the role.
Signals to score
- Thoughtful questions asked
- Interest in company culture
- Curiosity about growth expressed
- Questions about role raised
- Inquiries about team challenges
- Engagement with responses shown
- Desire to learn next steps
Follow-up questions
- What interests you most about this team?
- Are there any areas of the role you’d like to explore further?
- What are the next steps in the interview process?
Site Reliability Engineer (SRE) interviews — common questions
- Who is this Site Reliability Engineer (SRE) interview plan for?
- It is written for the interviewer, not the candidate: the hiring manager, engineer or panel member running the Technical Interview round for a Site Reliability Engineer (SRE) role. It gives you a 60 min script to follow in the conversation — 9 questions with what each one is for and the signals to score against — so you are not writing the round from scratch the night before.
- What does the Technical Interview round assess?
- This round is focused on: Reliability Engineering, System Performance, Monitoring Tools, Capacity Planning, Automation. It works through Reliability Engineering, System Performance and Monitoring Tools, Automation and Problem-solving, Collaboration Skills and Closing, scoring against 58 observable signals, with follow-up prompts on all 9 questions for going deeper where an answer is thin.
- How is the 60 min split up?
- Reliability Engineering (10 min), System Performance and Monitoring Tools (10 min), Automation and Problem-solving (10 min), Collaboration Skills (10 min), Closing (5 min). The timings are there so the round stays on schedule and every candidate gets the same shape of interview — which is what makes two candidates comparable afterwards.
- What other rounds should I run for a Site Reliability Engineer (SRE)?
A single round does not cover a whole role. The other rounds in this library for a Site Reliability Engineer (SRE):