Table of Contents
Interview Ready Guide: Lead DevOps Engineer
Chapter 1 — Role Overview & Strategic Framing
- How to Use This Guide
- Guide Structure
- Lead-Level Framing: Problem → Solution → Outcome
Chapter 2 — CI/CD Pipeline Design
- Core Concepts to Master
- What Interviewers Look For
-
CI/CD Interview Q&A
- Walk me through your ideal CI/CD pipeline for a microservices app on GCP
- How do you handle secrets in CI/CD pipelines?
- How do you prevent pipeline sprawl?
- What is your rollback strategy?
- How do you measure CI/CD pipeline health?
- Interview Tip: Whiteboard Your Pipeline
Chapter 3 — Terraform / IaC with Security
- Production Scenario: Secure Multi-Env GCP Infrastructure
- Architecture Components
- Terraform Project Structure
-
Core Terraform Code
- Secure Networking Module
- GKE Private Cluster with Workload Identity
- Secret Manager Integration
- CI/CD Pipeline for Terraform (GitHub Actions)
- Security Signals for Interviewers
Chapter 4 — GCP Services Deep Dive
- Key Services from JD
-
GCP Interview Q&A
- Pub/Sub + BigQuery Streaming Pipeline
- Cloud Functions vs Cloud Run vs GKE
- Column-Level Security in BigQuery
- VPC Service Controls
- Multi-Region Disaster Recovery
Chapter 5 — Kubernetes + ArgoCD Production Scenario
- Scenario: GitOps-Driven Multi-Tenant Platform
- ArgoCD App-of-Apps Pattern
- Team Application with RBAC
- Kubernetes Security Hardening
-
Kubernetes Interview Q&A
- Managing Resource Quotas Across Teams
- Handling CrashLoopBackOff in Production
- Zero-Downtime Deployments
- Workload Identity in GKE
Chapter 6 — Networking, IAM & Security
- Critical Security Concepts for Lead Role
- IAM Best Practices
-
Interview Q&A
- VPC Firewall Rules for a 3-Tier App
- GCP Network Architecture for Private GKE
- Secrets Rotation
- RBAC at Scale in GKE
Chapter 7 — Python for DevOps
- Key Python Skills to Demonstrate
- Example: Python Script to Audit GCP IAM Bindings
-
Interview Q&A
- Python for Infrastructure Automation
- Writing a Kubernetes Operator in Python
Chapter 8 — Leadership, Troubleshooting & Behavioural Questions
- STAR Format: Situation, Task, Action, Result
- Must-Prepare Stories for Lead Role
-
Interview Q&A
- Driving DevOps Culture Across Teams
- Prioritizing Platform Work vs Reactive Ops
- Handling Disagreement on Architecture
- What Does "Done" Look Like for a Production Deployment?
Chapter 9 — Questions to Ask the Interviewer
- High-Signal Questions for a Lead Role