Backend Engineer

Description

Auto-generated position for Backend Engineer

Interview Questions (30)

Q1How would you optimize a slow database query?
Technical
Q2Describe a time when you helped resolve a team conflict.
Behavioral
Q3Can you explain the difference between REST and GraphQL and when you would choose one over the other?
Technical
Q4Describe a challenging project you worked on and how you overcame the difficulties you faced.
Experience
Q5Can you describe a challenging backend system you designed and the technologies you used?
Experience
Q6Can you explain the difference between a stack and a queue and provide an example of when you would use each?
Technical
Q7Can you describe your experience with migrating a monolithic application to a microservices architecture, particularly focusing on the challenges you faced and how you overcame them?
Experience
Q8How do you prioritize system reliability and performance when designing backend services, and what practices do you implement to ensure these standards are met?
Technical
Q9Can you describe a challenging technical problem you solved in a past project and the approach you took?
Experience
Q10How do you prioritize collaboration with cross-functional teams when designing a new feature?
Behavioral
Q11Can you describe a challenging problem you solved while optimizing PostgreSQL queries for better performance?
Experience
Q12How do you ensure secure authentication and authorization when integrating third-party AI services into your applications?
Technical
Q13Can you describe the specific methods you used to optimize PostgreSQL performance by 30% in your current role at Cazoo?
Technical
Q14Can you explain the microservices architecture you implemented in your previous projects and its benefits?
Technical
Q15Can you describe the optimizations you implemented in the webhook pipeline that reduced processing time from over 5 minutes to under 1 second?
Technical
Q16Can you describe a challenging bug you encountered in your previous projects and how you resolved it?
Behavioral
Q17Can you describe how you improved the initial load times of the meCarreira platform by 40% and what specific techniques were involved?
Technical
Q18Describe a challenging project you worked on where you had to implement multithreading in Java. What was your role and what was the outcome?
Experience
Q19Can you describe a challenging backend project you worked on and the specific role you played in its success?
Experience
Q20Walk me through a system you designed that you'd design differently today. What would you change?
Experience
Q21Design an API rate limiting system for a multi-tenant SaaS product. Walk me through your approach.
Technical
Q22How would you approach migrating a production database table with 100M rows and no downtime?
Technical
Q23Tell me about the last production incident you owned. What was your debugging process?
Behavioral
Q24How do you decide when a service is 'good enough' to ship vs. needing more work?
Motivational
Q25You're on-call and get paged at 3am with a P0 incident — latency on your service is up 400%. Walk me through your response.
Situational
Q26Here's a PR from a junior engineer on your team. What do you notice in this code review?
Technical
Q27How do you approach testing for a service that processes payments?
Technical
Q28Describe a technical decision you made that the team disagreed with. How did you handle it?
Behavioral
Q29What's the last thing you read or watched that significantly changed how you think about backend engineering?
Motivational
Q30A strong backend engineer has never shipped an agent. Worth interviewing?
Other