System Design Mock interview

Overview

System Design interviews evaluate your ability to architect scalable systems, make pragmatic trade-offs, and communicate complex technical ideas under pressure. Drawing from my experience building high-scale architectures at Salesforce, Goldman Sachs, and Zoho, I will lead you through a realistic, high-bar system design mock interview.

What to Expect (60-Minute Format)

1. 5 mins: Introductions, scope definition, and requirements alignment.
2. 40 mins: Live System Design Exercise (High-level architecture, database choice, API design, and bottleneck deep-dives).
3. 15 mins: Comprehensive feedback, score breakdown, and direct Q&A.

What We Will Cover

1. Requirements & Scoping: Framework for clarifying functional/non-functional requirements and estimations.
2. High-Level Architecture: Designing end-to-end flows with load balancers, caches, databases, and message queues.
3. Data Modeling & Storage: Selecting RDBMS vs. NoSQL, schema design, and indexing strategies.
4. Scalability & Trade-offs: Addressing single points of failure, bottleneck resolution, fault tolerance, and CAP theorem trade-offs.
5. Communication: Structuring your discussion clearly to drive the interview like a senior engineer.

Key Takeaways

You will receive candid, actionable feedback on your technical depth, system design framework, communication style, and specific architectural topics to review before your actual interview.

Who is this for?

Mid to Senior-level Software Engineers (SDE II / SDE III / L4+) preparing for system design rounds at product-based and tier-1 tech firms.