System Design Mock Interview with Devesh Kumar

System Design Mock Interview — 60 Minutes

Preparing for a Senior Software Engineer, Staff Engineer, Principal Engineer, or Technical Architect interview?

This session is a realistic, interviewer-style system design mock interview where we work through a real-world architecture problem from requirements to production-ready design.

With 14+ years of experience across Microsoft, Salesforce, and enterprise technology platforms, I’ll help you practice the way senior-level system design interviews are actually evaluated.

What we'll cover

• Requirement gathering and clarification

• Functional and non-functional requirements

• Capacity estimation and traffic analysis

• High-level architecture and component design

• API and service design

• Database selection and data modeling

• Caching strategies

• Message queues and event-driven architecture

• Scalability and high availability

• Distributed systems and failure handling

• Consistency, reliability and fault tolerance

• Security and authentication considerations

• Observability, monitoring and operational concerns

• Cloud architecture and deployment considerations

• Trade-offs and architectural decision-making

How the session works

I'll give you a system design problem similar to what you may encounter in a senior engineering or architect interview.

You'll drive the discussion and design the solution while I act as the interviewer.

I'll challenge your assumptions, ask follow-up questions, introduce scalability and failure scenarios, and evaluate how you communicate your architectural decisions.

At the end, you'll receive practical feedback on:

• Architecture and system design

• Problem-solving approach

• Depth of technical reasoning

• Scalability and reliability considerations

• Communication and requirement clarification

• Trade-off analysis

• Areas that need improvement

• How to structure your answer more effectively in the actual interview

Who this is for

Senior Software Engineers

Staff Engineers

Principal Engineers

Technical Architects

Engineering Leads

Candidates preparing for system design interviews at product and technology companies

You don't need to prepare a perfect solution beforehand.

Come with your current level of experience, and we'll use the session to identify gaps and improve your system-design thinking.

Bring your toughest system design problem — let's design it together.