Tech Interview 101 - DSA and System Design
422k+ interested Geeks
Tech Interview 101 is a live, structured program that builds strong DSA skills and applies them to both Low-Level and High-Level System Design. Learn problem-solving, coding/debugging, OOP, SOLID, design patterns, and scalable architecture to crack interviews and grow into Developer, Tech Lead, or Architect roles.
Beginner to Advanced5 Seats Left
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Speak to an Expert: +91 8130806418
Speak to an Expert: +91 8130806418or Request a CallbackCourse Overview
Data Structures & Advanced Algorithms
Interview-ready problem solving with algorithmic thinking to identify patterns in complex problems.
Interview-ready problem solving with algorithmic thinking to identify patterns in complex problems.
Optimised Problem Solving Approaches
Learn clean coding standards, professional debugging, and writing production-ready optimized solutions.
Learn clean coding standards, professional debugging, and writing production-ready optimized solutions.
Design Foundations & SOLID Principles
Master OOP and core GoF design patterns to build modular, scalable, and maintainable systems.
Master OOP and core GoF design patterns to build modular, scalable, and maintainable systems.
System Architecture & Scalability
Design scalable systems using load balancing, sharding, caching, and smart distributed trade-offs.
Design scalable systems using load balancing, sharding, caching, and smart distributed trade-offs.
Production-Grade Design
Solve MAANG and startup interview design cases with optimized, production-grade code and design thinking.
Solve MAANG and startup interview design cases with optimized, production-grade code and design thinking.
Industrial System Thinking
Solve real-world system designs like Uber and Netflix by mastering scalability, trade-offs, and availability.
Solve real-world system designs like Uber and Netflix by mastering scalability, trade-offs, and availability.
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Course Content
01Class 1: Time & Space Complexity
- Introduction to algorithm analysis, efficiency, and Big-O notation for time complexity
- Bitwise Operators with practical examples (swapping numbers, checking even/odd)
- Number System basics: binary, decimal, octal, hexadecimal, and base conversions
02Class 2: Mathematics
- Prime numbers and efficient checking methods
- Sieve of Eratosthenes for generating primes
- GCD & LCM using Euclidean Algorithm with array-based applications
- Examples: fractions, modular arithmetic, and related practice problems
03Class 3: Array I
- Array basics, traversal, insertion, deletion, Second Max, Leaders
- Kadanes Algorithm for Maximum Subarray Sum, Buy-Sell Stock problem
- Array rotations using Juggling Algorithm, Reversal method, and examples
04Class 4: Array II
- Majority Element using Boyer Moore Voting Algorithm
- Subarrays and Subsequences with Prefix & Suffix arrays
- Practice problems for sum, product, and sliding window subarrays
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What Sets Us Apart
Doubt Support & Assistance
AI chat support with a dedicated batch teaching assistant to solve your doubts instantly for 6 months.
Recognised Certification
Earn an industry-recognized GeeksforGeeks Training Certificate for credible validation, career advancement, and lifetime
Interview Preparation
Expert interview prep with selected questions, mock contests and clear process guidance to secure your dream job.
Course Benefits
1-year Access to the online Course materials and Premium Recorded videos
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Testimonials
Live classes of DSA for Working Professional are very good and they covered all the important topics for placement in good MNC. This course helped me ...
NISHI KANT RANJAN
Placed in Globallogic a Hitachi group company
I really enjoyed the course and felt the challenge. It built confidence. I look forward to taking another course in the future. This course helped a l...
Shaik Avaies
Placed at Amazon
Completing the "DSA to System Design for Working Professionals" course, anchored by the "Mastery in DSA," was a game-changer. From refining my coding ...
Neeraj Kumar
Placed at Montbleu Technologies
Once I had basic knowledge of Data Structures, I started using the questions to practice questions based on topic and difficulty levels. Whenever I fe...
Adesh
Placed at Volante Systems
I was able to develop my coding skills through this course. The training had industry oriented problems that required extremely sound logic, but the m...
Taranjeet Singh
Placed at NEC
I have joined the Geeks Classes batch for DSA to get placed in a good product-based company. This course helped me a lot to understand Data structures...
Nikhil Kumar
Placed in DateTheRamp
Frequently Asked Questions
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