DSA & System Design 1:1 Mentorship

I’m Karan, a Backend Engineer & Mentor with 4+ years of experience in Java, Microservices, and scalable system architecture. I’ve helped students and professionals land offers at top companies by simplifying interview prep.

💡 What You’ll Learn in 1:1 Mentorship

🔷 Data Structures & Algorithms (DSA)

• Arrays, Strings, LinkedList, Stack, Queue, Trees, Tries
• Graphs, Topological Sort, Union-Find
• Recursion, Backtracking
• Dynamic Programming
• Sliding Window, Two Pointers, Binary Search

💬 With line-by-line dry-run explanations — like how you’d explain in an interview.

🔷 LeetCode Patterns Mastery

• Understand common patterns: Merge Intervals, Greedy, Monotonic Stack, BFS/DFS
• Build problem-solving intuition
• Focus on FAANG/Top Product company questions

🧩 Not just how to solve, but why it works.

🔷 Mock Interviews + Feedback

• Real-time interview simulation
• Feedback on your thought process, approach, and communication
• Live debugging + behavioral guidance

💡 Includes feedback on how to think like an interviewer.

🔷 Advanced System Design (LLD + HLD)

Learn how to design, scale, and reason like a staff engineer.

✅ Low-Level Design (LLD)

• Object-Oriented Design
• SOLID, DRY, Encapsulation & Composition
• Live Coding:
  • Parking Lot
  • Ludo
  • Chess
  • Wallet System
  • To-Do List App
  • Rate Limiter

🎓 We’ll go class-by-class with UML + code

✅ High-Level Design (HLD)

Master the “why” before the “what” — understand trade-offs, components, and real-world scale.

• API Gateway + Microservices
• Load Balancing + Consistent Hashing
• Database Sharding, Replication, Partitioning
• Caching (Redis, Memcached)
• Messaging Queues (Kafka, RabbitMQ)
• Search Engines (Elasticsearch)
• Distributed Systems: CAP Theorem, Eventual Consistency
• Design Dropbox, Instagram, YouTube, WhatsApp, Rate Limiter, Netflix

🛠 We'll whiteboard it out, design end-to-end flows, and dive into:

• Read/Write optimizations
• Scaling storage + compute
• Designing for failure