SDE Roadmap 2026

Your path to cracking FAANG/MAANG interviews. From Data Structures & Algorithms to System Design.

1. Pick a Language & Master It

💡 Teacher's Tip: Don't jump between languages. For DSA interviews, C++ (STL) or Java (Collections) are best because of speed and library support. Python is okay, but less common for DSA in interviews.
C++ STL Java Collections Memory Management

2. Data Structures & Algorithms

💡 Teacher's Tip: This is the most critical part. Don't just memorize. Understand patterns like "Two Pointers" or "Sliding Window". Aim for 300+ LeetCode problems.
Arrays/Strings Trees/Graphs Dynamic Programming

3. CS Fundamentals (Core)

💡 Teacher's Tip: Coding isn't enough. Interviews test your knowledge of Operating Systems (Threads/Processes), DBMS (SQL/Normalization), and Networks.
OS (Threads) DBMS (SQL) Computer Networks

4. System Design (LLD & HLD)

💡 Teacher's Tip: For Freshers, focus on LLD (Object Oriented Design). For 2+ years exp, focus on HLD (Scalability). Learn how to design a Parking Lot or URL Shortener.
SOLID Principles Design Patterns Scalability

5. Behavioral Interviews

💡 Teacher's Tip: Many fail here. Use the "STAR Method" (Situation, Task, Action, Result) to answer questions like "Tell me about a time you failed."
STAR Method Communication Leadership Principles