Loading page
Celonis
Practice questions for the skills this job lists, plus common questions for any interview. These are for practice: we don’t know the employer’s actual questions.
How do equals() and hashCode() work together in a HashMap?
Java
Explain the difference between checked and unchecked exceptions.
Java
How would you find and fix a slow query in Postgres (EXPLAIN ANALYZE)?
PostgreSQL
How does dependency injection work in Spring Boot?
Spring
Design a simple, highly available web app on AWS. Which services and why?
AWS
What's the difference between an IAM role and an IAM user?
AWS
Explain Pods, Deployments and Services, and how traffic reaches a Pod.
Kubernetes
How would you debug a Pod stuck in CrashLoopBackOff?
Kubernetes
Explain merge versus rebase. How do you resolve a conflict?
Git
What's the difference between a transformation and an action, and why does it matter?
Spark
Walk me through a project you built: the design, a hard bug and what you'd change.
This kind of role
Reverse a linked list, then explain its time and space complexity.
This kind of role
How would you design a URL shortener?
This kind of role
What do you know about Celonis's products and customers?
Celonis
Tell me about yourself in two minutes, focused on this role.
About you
Why this company, and why this role?
About you
Tell me about a time you disagreed with a teammate. What happened?
About you
Describe a time you failed or missed a deadline, and what you changed afterwards.
About you