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Technical Skills & Preparation

This section covers the core technical topics you need to master for Platform Engineering, SRE, and DevOps interviews.

The intersection of AI and infrastructure is creating unprecedented opportunities. Master these specialized skills:

AI/ML Infrastructure

Why it matters: AI platform engineers command 20-30% salary premiums and work on cutting-edge infrastructure powering the AI revolution.

Core Topics Overview

Deep Dive Guides

1. Linux & System Programming

Essential for understanding how applications interact with the operating system.

Key Resources:

Must-Know Topics:

  • File descriptors, pipes, and sockets
  • Process management and signals
  • Memory management
  • System calls
  • Shell scripting (Bash)

2. Networking

Understanding networking is crucial for debugging distributed systems.

Key Resources:

Must-Know Topics:

  • OSI model and TCP/IP stack
  • HTTP/HTTPS, DNS, Load Balancing
  • Network troubleshooting (tcpdump, netstat, dig)
  • CDNs and reverse proxies
  • VPNs and network security

3. Containerization & Orchestration

Docker:

Kubernetes:

4. Cloud Platforms

AWS:

Google Cloud Platform:

Azure:

5. Infrastructure as Code

Terraform:

Ansible:

6. CI/CD

Jenkins:

GitLab CI/CD:

GitHub Actions:

ArgoCD:

7. Monitoring & Observability

Prometheus & Grafana:

ELK Stack:

8. System Design for Reliability

Key Resources:

Must-Know Concepts:

  • Load balancing strategies
  • Caching layers
  • Database scaling (replication, sharding)
  • Message queues and event-driven architecture
  • Microservices patterns
  • Failure modes and resilience patterns

9. Programming & Scripting

Languages to Know:

  • Python - Most common for automation and tooling
  • Go - Increasingly popular for infrastructure tools
  • Bash - Essential for system administration

Resources:

10. Security

Key Resources:

Hands-On Practice

Interactive Learning Platforms

Project Ideas

  1. Build a CI/CD pipeline from scratch
  2. Deploy a microservices application on Kubernetes
  3. Implement monitoring and alerting for a web application
  4. Create Infrastructure as Code for a three-tier application
  5. Build a disaster recovery solution

Study Plans by Experience Level

Entry Level (0-2 years)

  1. Master Linux fundamentals
  2. Learn Docker and basic Kubernetes
  3. Understand one cloud platform (AWS recommended)
  4. Basic CI/CD with Jenkins or GitHub Actions
  5. Python scripting

Mid Level (2-5 years)

  1. Deep dive into Kubernetes
  2. Master Infrastructure as Code (Terraform)
  3. Multi-cloud experience
  4. Advanced monitoring and observability
  5. System design fundamentals

Senior Level (5+ years)

  1. Complex system design
  2. Platform engineering concepts
  3. Cost optimization strategies
  4. Security best practices
  5. Leadership and architectural decisions

Additional Study Resources

Comprehensive Question Banks

Books for Deep Learning

  • 📚 "Site Reliability Engineering" - Google's SRE practices
  • 📚 "The Site Reliability Workbook" - Practical SRE implementation
  • 📚 "Accelerate" - DevOps metrics and practices
  • 📚 "The DevOps Handbook" - Implementation guide

Remember: Focus on understanding concepts deeply rather than memorizing answers. Interviewers value practical experience and problem-solving skills over rote knowledge.