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Senior Software Engineer Interview Preparation Hub

This comprehensive guide is designed for Senior Software Engineer roles, with a focus on Full-Stack, LLM Systems, and Cloud Infrastructure.

Table of Contents

LLM & AI Systems

50+ Qs: RAG, Agents, Transformers, and Evaluation.

System Design

50+ Qs: Scalability, CAP, Consistency, and Design Cases.

GCP Cloud

50+ Qs: Compute Engine, GKE Autopilot, and IAM.

Docker

50+ Qs: Containerization, Layers, Networking, and Security.

Kubernetes

50+ Qs: Orchestration, GKE, CNI, and Troubleshooting.

CI/CD & Testing

50+ Qs: Pipelines, GitOps, Blue/Green, and DevSecOps.

Databases

50+ Qs: SQL, NoSQL, B-Trees, and Isolation Levels.

REST & APIs

50+ Qs: gRPC, API Gateway, and Distributed Patterns.

JavaScript

50+ Qs: Event Loop, Prototypes, Closures, and DOM.

React

50+ Qs: Fiber, Hooks Internals, and Performance.

Node.js

50+ Qs: Runtime, Streams, Cluster, and Worker Threads.

Python

50+ Qs: GIL, Memory Mgmt, Asyncio, and ML.

Overview & Strategy

Target Role Expectations

  • Experience: 8+ years total, 2+ years in LLM systems.
  • Key Skills: Production LLMs, GCP/Kubernetes, High-Scale System Design, Technical Leadership.
  • Preparation: 650+ Deep Dive Questions across 13 topics.
  • Interview Rounds: Technical Screen, System Design, LLM Specific, Behavioral/Leadership.

Critical Focus Areas

Priority 1: Mastery (70% Effort)

  1. LLM Production Systems: RAG, Agents, Eval pipelines.
  2. GCP & Kubernetes: Cloud Run, GKE, Networking.
  3. System Design: Distributed systems, Scalability.

Priority 2: Proficiency (20% Effort)

  1. Full-Stack (React/Node): Performance, patterns.
  2. Databases: Optimization, Sharding.
  3. Security: IAM, CI/CD gates.

Priority 3: Conversational (10% Effort)

  1. Leadership: Mentorship, Process.
  2. Soft Skills: Communication, Cross-functional work.

Study Plan

4-Week Intensive

WeekFocus AreaActivities
1LLM & AILangChain, RAG architecture, Agents, Eval metrics.
2System DesignScalability patterns, Caching, 5 Classic Design Problems.
3Full-Stack/DevOpsReact/Node deep dive, CI/CD pipelines, Terraform.
4Mock & ReviewMock interviews, Behavioral stories (STAR method).

Behavioral & Leadership

Don’t forget to prepare for the leadership round.

Leadership & Behavioral

STAR Method, Mentorship, Conflict Resolution, and questions to ask.