Deloitte
Multinational professional services network with offices in over 150 countries.
4 Rounds
~21 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
DevOps Engineer
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Behavioral
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medium
Tell me about a time you had a fundamental disagreement with a client regarding a technical architectural choice. How did you handle it?
#Communication
#Conflict Resolution
#Consulting
DevOps Engineer
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Behavioral
•
medium
A traditional enterprise client wants to adopt 'DevOps' but their security team is pushing back, fearing loss of control. How do you integrate security into the DevOps lifecycle (DevSecOps)?
#DevSecOps
#Client Communication
#Agile
DevOps Engineer
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Behavioral
•
medium
Tell me about a time you caused a production outage. How did you discover it, fix it, and prevent it from happening again?
#Incident Management
#Accountability
#Post-mortems
DevOps Engineer
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Behavioral
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hard
Describe a scenario where you had to manage tight deadlines and scope creep on a cloud migration project.
#Consulting
#Time Management
#Agile
DevOps Engineer
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Behavioral
•
easy
Describe your experience working in Agile environments. How do DevOps practices integrate into two-week sprint cycles?
#Agile
#Scrum
#DevOps Culture
DevOps Engineer
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Coding
•
medium
Write a Python script using Boto3 to find all EC2 instances in an AWS account that do not have a specific mandatory tagging standard (e.g., 'CostCenter') and stop them.
#Python
#AWS
#Boto3
#Cloud Governance
DevOps Engineer
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Coding
•
easy
Write a Bash script to parse a large Nginx access log file, extract the top 10 IP addresses with the most HTTP 500 errors, and output them.
#Bash
#Linux
#Log Analysis
DevOps Engineer
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Coding
•
medium
Write a Terraform module to provision a secure AWS VPC with public and private subnets, a NAT Gateway, and strict Security Group rules.
#Terraform
#AWS
#Networking
DevOps Engineer
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Coding
•
medium
Write an Ansible playbook to update all packages and restart the Nginx service on a group of Ubuntu servers, but only if the configuration file passes a syntax check.
#Ansible
#Linux
DevOps Engineer
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Coding
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hard
Write a Jenkinsfile (Declarative Pipeline) that checks out code, builds a Docker image, pushes it to AWS ECR, and deploys it to an EKS cluster.
#Jenkins
#Groovy
#Docker
#AWS
DevOps Engineer
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Coding
•
easy
Write a Python script to monitor a specific URL. If the URL returns a status code other than 200, the script should send an alert to a Slack webhook.
#Python
#Monitoring
#API Integration
DevOps Engineer
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System Design
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hard
Walk me through how you would design a secure, multi-environment CI/CD pipeline for a highly regulated financial client migrating to AWS.
#Jenkins
#AWS
#Security
#Compliance
DevOps Engineer
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System Design
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hard
Design a highly available and fault-tolerant web application architecture on Azure for a government agency. What services would you use and why?
#Azure
#High Availability
#Disaster Recovery
DevOps Engineer
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System Design
•
medium
Design a centralized logging and monitoring solution for a microservices architecture deployed across multiple EKS clusters.
#Kubernetes
#Prometheus
#Grafana
#ELK/EFK
DevOps Engineer
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System Design
•
hard
Design a Disaster Recovery (DR) plan for a mission-critical application hosted on AWS with an RTO of 1 hour and an RPO of 15 minutes.
#AWS
#Disaster Recovery
#Architecture
DevOps Engineer
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System Design
•
hard
A client wants to migrate from a monolithic Jenkins setup to GitLab CI/CD. How would you architect this migration with minimal downtime?
#GitLab
#Jenkins
#Migration Strategy
DevOps Engineer
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System Design
•
medium
Design a secure network architecture for a 3-tier application in AWS. How do you route traffic between the web, application, and database tiers?
#AWS
#Networking
#Security
DevOps Engineer
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Technical
•
medium
How do you manage and secure Terraform state files when working with a distributed team of engineers on a large enterprise project?
#Terraform
#State Management
#Security
DevOps Engineer
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Technical
•
medium
A client's Kubernetes pod is stuck in a 'CrashLoopBackOff' state. Walk me through your exact troubleshooting steps.
#Kubernetes
#Troubleshooting
#Docker
DevOps Engineer
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Technical
•
medium
How do you handle 'Terraform drift' where a client's operations team has made manual changes to AWS resources via the console?
#Terraform
#Configuration Management
DevOps Engineer
•
Technical
•
medium
Explain the difference between a Kubernetes ClusterIP, NodePort, and LoadBalancer service. When would you use each in a client's environment?
#Kubernetes
#Networking
DevOps Engineer
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Technical
•
medium
How would you implement a Blue/Green deployment strategy using Kubernetes and an Ingress controller?
#Kubernetes
#Deployment Strategies
#Networking
DevOps Engineer
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Technical
•
easy
What is the difference between 'count' and 'for_each' in Terraform, and why is 'for_each' generally preferred for creating multiple resources?
#Terraform
DevOps Engineer
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Technical
•
medium
How do you optimize a Dockerfile for a Node.js application to ensure the smallest possible image size and fastest build time?
#Docker
#Optimization
DevOps Engineer
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Technical
•
medium
A client is experiencing high AWS bills. Walk me through your strategy for cloud cost optimization.
#AWS
#FinOps
#Cost Optimization
DevOps Engineer
•
Technical
•
easy
Explain the architecture of Kubernetes. What are the components of the Control Plane and the Worker Nodes?
#Kubernetes
#Architecture
DevOps Engineer
•
Technical
•
hard
How do you manage stateful applications (like databases) in Kubernetes?
#Kubernetes
#Storage
#Databases
DevOps Engineer
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Technical
•
medium
What are the key differences between AWS IAM Roles and IAM Policies, and how would you implement cross-account access for a Deloitte auditor?
#AWS
#IAM
#Security
DevOps Engineer
•
Technical
•
easy
Your CI/CD pipeline works perfectly in the development environment but fails consistently in the staging environment. How do you approach this?
#Troubleshooting
#Environment Parity
DevOps Engineer
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Technical
•
medium
How do you implement Role-Based Access Control (RBAC) in a Kubernetes cluster to restrict a developer team to only view resources in their specific namespace?
#Kubernetes
#RBAC
#Security
DevOps Engineer
•
Technical
•
medium
Define SLIs, SLOs, and SLAs. How would you help a client establish these metrics for a newly migrated cloud application?
#SRE
#Monitoring
#Consulting
DevOps Engineer
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Technical
•
medium
How do you secure an AWS S3 bucket that contains sensitive PII data for a healthcare client?
#AWS
#S3
#Compliance
DevOps Engineer
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Technical
•
easy
Explain how Helm charts work in Kubernetes. What is the purpose of the values.yaml file?
#Kubernetes
#Helm
DevOps Engineer
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Technical
•
medium
What is GitOps? How would you implement it using tools like ArgoCD or Flux for a client?
#GitOps
#Kubernetes
#ArgoCD
DevOps Engineer
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Technical
•
hard
How do you handle database schema migrations in an automated CI/CD pipeline without causing downtime?
#Databases
#Automation
#Deployment Strategies
Difficulty Radar
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Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Always explain your thought process before writing code or drawing architecture.