The Reality of Tech Interviews
Technical interviews at modern engineering companies aren't about memorizing 500 LeetCode problems—they are about demonstrating clear analytical thinking, pattern recognition, and problem-solving communication under pressure.
Phase 1: Core Data Structures (Days 1–30)
Focus on deep mastery of fundamentals rather than rushing through numbers:
- Arrays & Two Pointers
- Hash Maps & Sets (O(1) lookups)
- Linked Lists & Stacks/Queues
- Recursion & Backtracking
Practice writing clean code on a whiteboard or plain text editor without relying on IDE auto-complete.
Phase 2: Advanced Algorithms (Days 31–60)
- Binary Search & Monotonic Queues
- Tree Traversals (BFS & DFS)
- Graphs (Dijkstra, Topological Sort, Disjoint Sets)
- Dynamic Programming (Memoization to Tabulation)
Phase 3: Mock Interviews & Behavioral Prep (Days 61–90)
Talking while coding is the #1 skill students struggle with. Practice explaining your thought process out loud:
- Clarify edge cases and input bounds.
- State the brute-force solution and its Time/Space complexity.
- Propose optimizations before writing a single line of code.
- Dry run with a sample test case.
You can simulate realistic AI-powered mock interviews using the GradVeda AI Interviewer to practice spoken responses and receive immediate feedback on clarity, technical depth, and structure.