System Design Mock Interview [LLD/HLD]

Prepare for real-world System Design interviews with a practical mock interview focused on HLD (High-Level Design) and LLD (Low-Level Design).

This session is designed to simulate actual product-company interviews where we’ll discuss scalability, trade-offs, architecture decisions, object-oriented design, and production-level engineering concepts.

What we can cover:

• High-Level Design (HLD)

• Low-Level Design (LLD)

• Distributed systems concepts

• Scalability & fault tolerance

• API design & database design

• Caching, load balancing, queues

• Microservices & event-driven architecture

• OOP & design patterns

• Backend architecture discussions

• Follow-up and edge-case handling

What you’ll get:

• Real interview-style system design discussion

• Detailed actionable feedback

• Guidance on communication and structuring answers

• Architecture improvement suggestions

• Identification of weak areas and improvement roadmap

• Tips for cracking backend/system design rounds

Best suited for:

• SDE-1 / SDE-2 candidates

• Backend engineers

• Engineers targeting FAANG/product companies

• Developers preparing for HLD/LLD rounds

My background:

• Software Engineer @ Microsoft

• Ex-Samsung & Sumo Logic

• Experience building scalable distributed systems handling millions of requests/events

• Worked with Java, Spring Boot, Kafka, Redis, AWS, Kubernetes, PostgreSQL, and cloud-native architectures

• Strong focus on backend engineering and production-scale system design

Please share before the session:

• Experience level

• Target companies

• Preferred focus (HLD / LLD / both)

• Topics or systems you'd like to practice