DSA, Advanced High & Low Level System Designs

Home Course DSA, Advanced High & Low Level System Designs

DSA, Advanced High & Low Level System Designs

Master DSA, High-Level Design (HLD), and Low-Level Design (LLD) with a practical, interview-focused learning path. Build strong problem-solving skills, understand scalable system architecture, and design production-ready software systems.

Enrolled:0

Last Updated:25/09/2026

22 LPA

Average Package

120%

Salary Hike

83 LPA

Highest Package

What I will learn?

Master essential data structures like arrays, linked lists, and trees to optimize code efficiency.
Understand basic and advanced algorithms, including dynamic programming and graph algorithms, for diverse problem domains.
Gain confidence in implementing algorithms and data structures through practical hands-on exercises

Develop problem-solving skills through solving over 400 meticulously crafted coding challenges.
Learn effective strategies for tackling coding interviews and excelling in competitive programming competitions.
Benefit from 24*7 doubt support, ensuring continuous guidance and assistance throughout your learning journey.

Material Includes

65+ Live Classes & Recordings

24/7 Live Doubt Support

400+ DSA Practice Questions

HackerRank Tests & Topic wise Quizzes

Case Studies

Access to Global Peer Community

Lifetime Support

Referrals

About Course

Master Data Structures & Algorithms (DSA), Advanced High-Level System Design (HLD), and Low-Level System Design (LLD) through a comprehensive, practical, and interview-focused learning experience. This program is designed to help aspiring and experienced software developers build strong problem-solving skills, understand how modern software systems are designed, and confidently approach technical interviews for SDE and product-based roles.

Course Curriculum

Data Structures & Algorithms

Number Theory
Master core number theory concepts like factors, GCD/LCM, primes, exponentiation, modulo arithmetic, nCr, sieves, and competitive problem-solving with real test practice.

Number of Common Factors
Add Two Integers
Product of factors of number
Repeating GCD
Exponentiation
Factorial
GCD & LCM
Prime Numbers and Primality Check
Sieve of Eratosthenes
Binary Exponentiation
Modulo Arithmetic
Inverse Modulo
nCr Computations using inverse modulo
Find all factorial numbers less than or equal to N
GCD, LCM and Distributive Property
Product of Prime Factors
Find Prime numbers in a range
HackerRank Test

Math
Build strong problem-solving skills with math-based algorithms covering numbers, dates, patterns, primes, and real coding test challenges.

Plus One
Sqrt(x)
Power of Four
Excel Sheet Column Title
Reverse Integer
Factorial Trailing Zeroes
Fibonacci Number
Palindrome Number
Check If It Is a Straight Line
Count Days Spent Together
Minimum Sum of Four Digit Number After Splitting Digits
Day of the Year
Subtract the Product and Sum of Digits of an Integer
Prime Arrangements
HackerRank Test

Bit Manipulation
Learn to solve problems using bitwise operations like XOR, set bits, Hamming distance, and efficient binary tricks with test-based practice.

Single Number
XOR Operation in an Array
Sum of All Subset XOR totals
Convert a number to hexadecimal
Prime Number of Set Bits in Binary Representation
Maximum XOR of Two Numbers in an Array
XOR Queries of a Subarray
Total Hamming Distance
Single Number II
Find Sum Of Different Corresponding Bits For All Pairs
Divide Two Integers
Bitwise ORs of Subarrays
Bit Manipulation Quiz
HackerRank Test

Searching (Beginner)
Learn essential searching techniques like binary search, array and matrix search, rotations, medians, and optimization problems with hands-on practice and tests.

sqrt(x)
Binary Search
Intersection of Two Array II
Count Negative Numbers in a Sorted Matrix
Check if Array is Sorted and Rotated
Rotate String
Find Peak Element
Single Element in a Sorted Array
Minimum Swaps to Sort
Matrix Median
Search in Rotated Sorted Array
Minimum Size Subarray Sum
Maximum Height Of The Staircase
Median Of Two Sorted Arrays
Searching Quiz
HackerRank Test

Searching (Advanced)
Learn essential searching techniques like binary search, array and matrix search, rotations, medians, and optimization problems with hands-on practice and tests.

Reach a Number
Most Profit Assigning Work
Ways to Split Array Into Three Subarrays
Plates between Candles
Aggressive Cows
Smallest Good Base
Allocate Books
Nth Magical Number
Painters Partition Problem
Matrix Search
Rotate Image
Find Minimum In Rotated Sorted Array
HackerRank Test

Recursion
Understand recursion through classic problems like permutations, subsets, combinations, and game-based logic, with quizzes and test practice.

Fibonacci Number
Power of Four
Merge Two Sorted Lists
Power of Two
All Unique Permutations
Combination Sum
Permutations
Subsets
Combination Sum ii
Gray Code
Subsets ii
Permutation Sequence
Find the Winner of the Circular Game
Recursion Quiz
HackerRank Test

Backtracking
Learn systematic search using backtracking to generate combinations, permutations, paths, and constraint-based solutions with test practice.

Sum of All Subset XOR Totals
Binary Watch
Letter Tile Possibilities
Generate Parantheses
Unique Paths III
NQueens
Permutations II
Number Of Squareful Arrays
Palindrome Partitioning
Gray Code
N-Queens II
Numbers With Same Consecutive Differences
Backtracking Quiz
HackerRank Test

Sorting (Beginner)
Learn basic sorting techniques and apply them to array-based problems, comparisons, and simple optimizations with quizzes and test practice.

Third Largest Number
Sort Array By Parity II
How Many Numbers are smaller than the current Number?
Fair Candy Swap
K Closest Points to Origin
Maximum Difference
Maximum Difference Between Increasing Elements
Number of sextuplets
Corporate Flight Bookings
Chocolate Distribution Problem
Sum Special Triplets Elements 3 Arrays
Find Right Interval
Sorting Algorithms Quiz
HackerRank Test

Sorting (Advanced)
Master advanced sorting techniques and counting-based problems like inversions, range sums, permutations, and optimized rearrangements with interview-level practice.

Find the Distance value between Two Arrays
Merge Similar items
Split with Minimum Sum
Sort Even and Odd Indices Independently
Count of smaller numbers after self
Count of Range Sum
Reverse pairs
Lexicographically largest permutation of the array such that a[i] = a[i-1] + gcd(a[i-1], a[i-2])
Possible Arrangement Of Persons Waiting To Sit In A Hall
Inversion count in an array
Max Chunks To Make Sorted II
Reducing Dishes
HackerRank Test

Two Pointer
Learn the two-pointer technique to efficiently solve array and string problems involving pairs, windows, water trapping, and optimization.

Find the Index of the First Occurrence in a String
Is Subsequence?
Check if N and its Double exist
Squares of a Sorted Array
Count of pairs with the given sum
Minimum Size Subarray Sum
Minimize the absolute difference
Smallest sequence with given Primes
Container With Most Water
Given Two Sorted Arrays Number X Find Pair Whose Sum Closest X
Counting Triangles
Trapping Rain Water
Longest Chunked Palindrome Decomposition
Two-Pointer Approach Quiz
HackerRank Test

Hashing (Beginner)
Learn how hashing simplifies problem-solving using maps and sets for fast lookups, subarrays, frequency counting, and pattern detection.

Two Sum
Find the Difference
Fair Candy Swap
Maximum Number of Ballons
Subarray with 0 sum
Subarray Sum Equals K
Largest Continuous Sequence Zero Sum
Longest Consecutive Sequence
Equal
Anagrams
Valid Sudoku
Set Matrix Zeros
Find Pairs In Array Whose Sums Already Exist In Array
Hashing Quiz

Hashing (Advanced)
Master advanced hashing techniques to solve string, geometry, window-based, and randomized problems with interview-level efficiency.

Check if N and its Double exist
How many Numbers are Smaller than the current number
Sum of Unique Elements
Decode the Message
Palindrome Pairs
Window String
Longest Substring Without Repeat
Points on same line
Count Right Triangles
Diffk ii
Grid Illumination
Find rectangle with corners as 1
Random Pick with Blacklist
HackerRank Test

Strings
Master string manipulation concepts including patterns, palindromes, conversions, parsing, and comparisons with practical problem-solving and tests.

Repeated Substring Pattern
Valid Palindrome II
Find Common characters
Check if a word occurs as a Prefix of any word in a sentence
Day of the Year
Longest Common Prefix
Compare Version Numbers
Compare Version Numbers
Reverse the String
Implement Strstr
Integer To Roman
Roman To Integer
Pretty Json
String Operations Quiz
HackerRank Test

Stacks
Master stack-based problem solving through real coding questions, advanced patterns, quizzes, and HackerRank-style tests.

Valid Parentheses
Next Greater Element I
Number of Students unable to eat Lunch
Remove all Adjacent Duplicates in String
Evaluate Expression
Min Stack
Largest Rectangle in Histogram
Trapping Rain Water
Nearest Smaller Element
Brace Expansion II
Maximal Rectangle
Stack Operations Quiz
Stack Operations Quiz
HackerRank Test

Queues
Learn queue-based problem solving with real-world coding questions, sliding window patterns, quizzes, and HackerRank tests.

Implement Stack using Queues
First Unique Character in a String
Implement Queue using Stacks
Time needed to Buy Tickets
Sum of min and max
Reversing the first K elements of a Queue
N integers containing only 1, 2 & 3
Gas Station
Sliding Window Maximum
Given A String Find Its First Non Repeating Character
Max Value of Equation
Shortest Subarray with Sum at Least K
Queues Quiz
HackerRank Test

Linked List (Beginner)
Build strong linked list fundamentals through classic problems, pointer techniques, quizzes, and HackerRank tests.

Merge Two Sorted Lists
Palindrome Linked List
Intersection of Two Linked Lists
Middle of the Linked List
Remove Nth Node From End of List
List Cycle
Reverse Linked List Ii
Populating Next Right Pointers in Each Node
Linked List Quiz
HackerRank Test

Linked List (Advanced)
Master advanced linked list designs and transformations with complex problems, in-place algorithms, and real system-style questions.

Design Hashmap
Remove Duplicates from Sorted List
Linked List Cycle
Merge Two Sorted Lists
Flatten a Multilevel Doubly Linked List
Clone a Linked List
Intersection of Linked Lists
Remove Duplicates From Sorted List ii
Remove Duplicates From Sorted List
Length Longest Palindrome List Linked List Using O(1) Extra Space
Design a Text Editor
Linked List Quiz 2

Trees (Beginner)
Learn binary tree fundamentals with traversal techniques, construction problems, depth checks, and hands-on practice tests.

Same Tree
Maximum Depth of Binary Tree
Binary Tree Inorder Traversal
Binary Tree Preorder Traversal
Binary Tree Postorder Traversal
Binary Tree From Inorder And Postorder
Balanced Binary Tree
Check Tree Traversal
Binary Tree Zigzag Level Order Traversal
Construct Binary Tree From Preorder And Inorder Traversal
Binary Tree Level Order Traversal
Populating Next Right Pointers in Each Node
HackerRank Test

Trees (Intermediate)
Strengthen tree problem-solving with symmetry checks, views, transformations, traversals, and serialization techniques.

Symmetric Tree
Invert Binary Tree
Binary Tree Tilt
Evaluate Boolean Binary Tree
Vertical Order traversal
Binary Tree Right Side View
Sum Tree
2-Sum Binary Tree
TOP VIEW
Boundary Traversal Of Binary Tree
Add One Row to Tree
Serialize and Deserialize Binary Tree

Trees & BST
Solve core tree and BST problems covering traversal, validation, construction, LCA, path sums, and optimization patterns.

Convert Sorted Array to BST
Find Mode in BST
Minimum Absolute difference in BST
Two Sum IV – Input is a BST
Search in a BST
Kth Largest Element in a Stream
Recover Binary Search Tree
Sorted Array To Balanced BST
BST Iterator
Left view of binary tree
Least Common Ancestor
Invert the Binary Tree
Valid Binary Search Tree
Binary Tree to CDLL
Sum Root To Leaf Numbers
Symmetric Binary Tree
Identical Binary Trees
Path Sum

BST (Advanced)
Deep dive into advanced BST problems focusing on distance queries, range operations, traversals, and complex tree paths.

Minimum Distance between BST nodes
Increasing order BST
Range Sum of BST
Leaf nodes from Preorder of a Binary Search Tree
Odd even level difference
Minimum Distance between Nodes of BST
Boundary Traversal Of Binary Tree
2sum Binary Tree
Binary Tree Paths
All Nodes Distance K In Binary Tree
Binary Search Tree (BST) Quiz

Heap
Learn heap-based problem solving for top-K elements, priority queues, scheduling, and real interview-style challenges.

Take Gifts from the Richest Pile
Delete greatest value in each row
Make Array zero by Subtracting equal amounts
Minimum amount of time to fill cups
N max pair combinations
Kth Largest Element in an Array
Merge k Sorted Lists
B Closest Points to Origin
Ways To Form Max Heap
Kth Largest Element In An Array
Magician And Chocolates
Sliding Window Median
Binary Heap Quiz
HackerRank Test

Greedy
Understand greedy decision-making through optimization problems, scheduling strategies, and classic interview challenges.

Largest Perimeter Triangle
Longest Palindrome
Maximum Sum with exactly K elements
Minimum Moves to convert string
Maximize Sum Of Array After K Negations
Assign Mice to Holes
Seats
Meeting rooms
Job Sequencing Problem
Task Scheduler
Kth Smallest Element In A Sorted Matrix
Minimum Number of Refueling Stops
Reducing Dishes
Greedy Algorithm Quiz

Dynamic Programming (Beginner)
Learn DP fundamentals through classic problems like Fibonacci, stock trading, subsequences, and optimal decision making.

Pascal’s Triangle
Best time to Buy and Sell Stock
Fibbonacci Number
Best Time to Buy and Sell Stock II
House Robber
Climbing Stairs
Length of Longest Fibonacci Subsequence
Min Jumps Array
Coins in a Line
Longest Increasing Subsequence
Tiling A Rectangle With The Fewest Squares
Max Sum Without Adjacent Elements
Dynamic Programming Quiz

Dynamic Programming (Intermediate)
Strengthen DP skills with subsequences, grid paths, coin problems, pattern matching, and optimization techniques.

Pascal’s Triangle II
Counting Bits
Is Subsequence?
Perfect Squares
Minimum cost for tickets
Min Sum Path in Matrix
Longest Palindromic Subsequence
Longest Common Subsequence
Longest Increasing Subsequence
Unique Paths In A Grid
Coin Sum Infinite
Coins In A Line
Regular Expression Matching
Dynamic Programming Concepts

Dynamic Programming (Advanced)
Master advanced DP with complex string problems, partitioning, optimization patterns, and multi-state interview challenges.

Divisor Game
N-th Tribonacci Number
Get Maximum in Generated Array
Predict the Winner
Maximum length of Pair Chain
Longest String chain
Minimum Time to make Rope colorful
Nth Fibbonacci Number
Get Maximum in Generated Array
Divisor Game
Edit Distance
Word Break
Regular Expression Matching
Regular Expression ii
Interleaving String
Palindrome Partitioning II
Longest Palindromic Substring
Matrix chain multiplication
Unique Binary Search Trees ii
Tushars Birthday Party
Distinct Subsequences
Evaluate Expression To True
Russian Doll Envelopes
Word Break II
Palindrome Partitioning II
Word Break
Stock Trading Dynamic Programming Problems

Graph (Beginner)
Learn graph fundamentals through traversal, connectivity, shortest paths, grid-based problems, and core graph concepts.

Find if Path exists in Graph
Find Center of Star Graph
Island Perimeter
Minimum Depth of Binary Tree
Rotting Oranges
Capture Regions on Board
Black Shapes
Frog Position After T Seconds
Smallest Multiple With 0 And 1
Number Of Islands
Jump Game IV
Shortest Path Visiting All Nodes
Graph Theory Concepts
Graph Types and Algorithms

Graph (Advanced)
Solve advanced graph problems using shortest paths, topological sorting, connectivity checks, and classic interview algorithms.

Min Cost to Connect All points
Find All Possible recipes from Given Supplies
All Ancestos of a Node in a Directed Acyclic Graph
Number of Provinces
Possibility of finishing all courses given pre-requisites
Commutable Islands
Knight On Chess Board
Dijkstra
Word Ladder I
Word Ladder II
Is Graph Bipartite?
Graph Algorithms

Trie
Learn trie-based techniques for prefix matching, XOR optimizations, substring detection, and advanced string problems.

Segment Tree
Understand segment trees for efficient range queries, updates, and solving complex interval-based problems.

Low Level System Design

Low Level Design (Basic Building Blocks)
Learn core LLD concepts like inheritance, association, composition, aggregation, with a quick quiz to test understanding.

OOPS

Solid Principles
Understand SOLID principles to design clean, scalable, and maintainable systems, with a quiz to reinforce concepts.

UML & Modeling

Creational Design Patterns
Learn object creation patterns like Factory, Builder, Singleton, and more, with a quiz to test understanding.

Structural Design Patterns
Learn patterns like Adapter, Decorator, Facade, and Bridge to structure flexible systems, with a quiz to test understanding.

Behavioural Design Patterns
Understand interaction-focused patterns like Command, Observer, State, and Strategy, with a quiz to test concepts.

API & Object Design

DTO vs Entity vs Model
Request/Response objects
API Versioning
Idempotency
Pagination
Filtering and Sorting
Error handling
Exception hierarchy
Validation
Retry handling

Concurrency & Multithreading

Process vs Thread
Race Conditions
Critical Sections
Mutex / Locks
Semaphore
Read-Write Locks
Deadlocks
Starvation
Thread Pools
Producer Consumer
Futures / Promises
Async programming
Concurrent Collections

LLD Topics

Pizza factory
Design a Pizza Factory system from requirements to diagrams, code implementation, and interview Q&A.

SQL Query builder
Design an SQL Query Builder from requirements to diagrams, code implementation, and interview Q&A.

Logger
Design a Logger system covering requirements, diagrams, code, and interview Q&A

Introduction & Class Diagram

03:03
Code Part 01

10:45
Singleton Logger

02:38
Code Part 02

02:01
Requirements
⁠Identification of actors
⁠Use case diagram
Class diagram
QnA
Activity Diagram
Code

Car Price Calculator
Design a Car Price Calculator from requirements to diagrams, code implementation, and interview Q&A.

Car Price Calculator LLD Chapter 1

00:00
Car Price Calculator LLD Chapter 2

00:00
Car Price Calculator LLD Chapter 3

00:00
Car Price Calculator LLD Chapter 4

00:00
Car Price Calculator LLD Chapter 5

00:00
Requirements
Identification of actors
⁠Use case diagram
Class Diagram
QnA
Activity Diagram
Code

Weather Station
Design a Weather Station system from requirements to diagrams, code implementation, and interview Q&A.

Ticket management system (Jira)
Design a Ticket Management System from requirements to diagrams, code implementation, and interview Q&A.

Payment processor
Design a Payment Processor from requirements to diagrams, code implementation, and interview Q&A.

Payment Processor LLD Chapter 1

02:47
Payment Processor LLD Chapter 2

03:48
Payment Processor LLD Chapter 3

06:51
Payment Processor LLD Chapter 4

09:10
Requirements
Identification of actors
Use case diagram
Class diagram
QnA
Activity Diagram
Code

Elevator System
Design an Elevator System from requirements to diagrams, code implementation, and interview Q&A.

Car parking
Design a Car Parking system covering requirements, diagrams, services, logging, design patterns, and complete code implementation.

Introduction Video

00:55
Use Case Diagram

03:44
Class Diagram

06:07
Class Diagram continued

05:30
Services

09:57
Parking Service

08:00
Discussion on Parking Spots and Parking Service

08:12
Activity Diagram

04:17
Coding Part 1

34:46
How to add Logging in the system

06:03
Coding Part 2 (Adding Logging in the system)

06:03
Implementing Parking pots using Decorator Design pattern

02:35
Coding Part 3

12:12
Requirements
⁠Identification of actors
Use case diagram
Class diagram
⁠QnA
⁠Activity Diagram
Code

Social media
Design a Social Media system from requirements to diagrams, code implementation, and interview Q&A.

WhatsApp
Design a WhatsApp-like system from requirements to diagrams, code implementation, and interview Q&A.

Amazon
Design an Amazon-like system from requirements to diagrams, code implementation, and interview Q&A.

PayPal
Design a PayPal-like payment system from requirements to diagrams, code implementation, and interview Q&A.

Zerodha

Assignment
Apply design patterns by implementing the Snakes and Ladders game end-to-end.

LLD Interview Framework

High Level Design

High Level Design ( Building Blocks )
Learn core HLD concepts like scalability, consistency, caching, databases, real-time systems, and GenAI-enabled APIs.

What is HLD?
Consistent Hashing
Caching
Load Balancing
CAP Theorem
Indexes
Redundancy and Replication
SQL vs NoSQL
Data Partitioning
Long Polling and WebSockets
Retrieval Augmented Generation (RAG)
Gen AI-enabled API Systems
Quorum

Requirements

Estimations

Database Deep Dive

Primary / Secondary Index
Clustered vs Non-clustered Index
Composite Index
B-Tree
B+ Tree
Query Optimization
Joins
Normalization
Denormalization
ACID
Transactions
Isolation Levels
Locks
Deadlocks
Replication
Sharding
Partitioning

Message Queues & Event Driven Architecture

Queue vs Pub/Sub
Kafka Architecture
Partitions
Consumer Groups
Offsets
Ordering
Delivery Guarantees
Idempotency
Retry
Dead Letter Queue

Microservices Architecture

Monolith vs Microservices
Service Discovery
API Gateway
Service-to-Service Communication
Sync vs Async
REST vs gRPC
Circuit Breaker
Retry
Timeout
Bulkhead Pattern
Saga Pattern

Reliability Engineering

Observability

Security

Authentication vs Authorization
OAuth 2.0
JWT
Session Management
RBAC
ABAC
API Keys
Encryption at Rest
Encryption in Transit
Secrets Management
Rate Limiting
DDoS Protection
WAF

Networking in Design

DNS
TCP vs UDP
HTTP vs HTTPS
HTTP/1.1 vs HTTP/2 vs HTTP/3
WebSockets
Long Polling
Load Balancers
Reverse Proxy
CDN
TLS/SSL

TinyURL
Design a TinyURL system covering requirements, capacity planning, APIs, databases, caching, scaling, and testing.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High-Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Rate Limiter
Design a Rate Limiter covering requirements, capacity planning, APIs, data storage, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Typeahead suggestion (Google queries)
Design a Typeahead system covering requirements, capacity planning, APIs, data storage, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Pastebin
Design a Pastebin-like system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

DropBox
Design a Dropbox-like system covering requirements, capacity planning, APIs, storage, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Instagram
Design an Instagram-like system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Messenger
Design a Messenger system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

BookMyShow
Design a BookMyShow-like ticketing system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Uber/Ola
Design a ride-hailing system covering requirements, capacity planning, APIs, databases, real-time matching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Newsfeed
Design a Newsfeed system covering requirements, capacity planning, APIs, databases, caching, feed generation, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Youtube/Netflix
Design a video streaming system covering requirements, capacity planning, APIs, storage, caching, scaling, and reliability.

Introduction
Requirements & Goals of the System
Capacity Estimations & Constraints
System APIs
Database design & Schema
High Level Design
QnA
Purging & Db Cleanup
Database Partitioning & Replication
Cache & Load Balancing

Stock Broking Application (Zerodha)

High Level Design Interview

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Weekly schedule

Core Sessions

Live, hands-on, activity-led sessions conducted by the instructor

Sat, 12:00 PM – 3:00 PM (IST)

Sun, 12:00 PM – 3:00 PM (IST)

Doubt Sessions

Live, hands-on, activity-led sessions conducted by the instructor

Mon-Fri, 9:00 PM – 11:00 PM (IST)

What You Will Get Post Completion Of Your Program

Resume Building

Create a powerful, job-winning resume that highlights your skills and maximizes your chances of securing top tech roles.

Linkedin Profile Building

Optimize your LinkedIn profile to attract recruiters, showcase expertise, and unlock new career opportunities in tech.

Mock Interviews

Gain confidence with expert-led mock interviews, personalized feedback, and real-world interview scenarios.

Referrals

Enhance your job search with strong industry referrals, connecting you to exclusive opportunities at top tech companies.

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Home Course DSA, Advanced High & Low Level System Designs

DSA, Advanced High & Low Level System Designs

Master DSA, High-Level Design (HLD), and Low-Level Design (LLD) with a practical, interview-focused learning path. Build strong problem-solving skills, understand scalable system architecture, and design production-ready software systems.

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Last Updated:25/09/2026

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Learnings

We have helped build 1000+ Careers

The course not only strengthened my technical skills but also helped me confidently crack two job offers. I especially appreciated their guidance during the offer stage, including valuable advice on CTC negotiation. I’m genuinely happy with my experience and would highly recommend this course to anyone preparing for SDE interviews and looking to make a career move.

The preparation gave me the confidence and skills I needed to make a successful career move from a my company. I would definitely recommend this course to anyone who is serious about improving their coding skills and switching to a better tech company.

A special thanks to Arun for his
outstanding System Design sessions. His way of simplifying complex concepts and focusing on real interview scenarios made a huge difference in my preparation. Overall, the program played a key role in helping me move closer to my career goals.

Before joining GetSDReady, I faced multiple rejections despite knowing the basics. The course helped me build strong fundamentals in DSA, C++, and System Design with clear, in-depth explanations. What stood out was how closely the content matched real interview questions — many topics were directly asked in my interviews. With consistent practice and mentorship, I was able to crack all rounds and secure a role in a product-based company with a 100% salary hike. Highly recommended for anyone serious about getting into top tech companies.

After joining GetSDReady, I built strong fundamentals in DSA and System Design, learning how to solve problems through patterns rather than just memorizing questions. The structured approach, constant support, and real interview-focused preparation made a huge difference. In my interviews, I was able to confidently solve DSA problems and design systems by applying exactly what I learned. Within a few months, I successfully transitioned into a product-based fintech company with an 80% salary hike.

Before joining Get SDE Ready, I had already spent ₹1.5 lakhs on another course that didn’t deliver. I was frustrated and unsure—until I found Arun Sir’s program. Affordable, effective, and incredibly well-structured, the DSA & System Design course helped me finally gain clarity and confidence. The mentorship, live sessions, and in-depth coverage of real interview questions made all the difference. With focused preparation and consistent guidance, I cracked Amazon with a massive 150% salary hike!

After 5+ years in the industry, I knew I had to level up to reach my career goals—but I was struggling with algorithm patterns and advanced DSA concepts on platforms like LeetCode. That’s when I joined Get SDE Ready’s courses in DSA and System Design, and it truly changed the game for me. The structured curriculum helped me finally grasp tricky topics like binary search and sliding window techniques, while the system design sessions gave me the confidence to tackle SD2 and SD3 interviews at top companies like Cisco and Oracle.

Coming from a non-CS background, I always found DSA to be a tough nut to crack. But everything changed when I discovered the GetSDReady DSA course on Instagram. The structured content, live classes, and constant mentor support truly transformed my learning journey. Thanks to mentors like Shubham, Alok, Nitin, and Arun Sir, I built the confidence I needed to face technical interviews. Their doubt-solving sessions and practical guidance played a big role in helping me land interviews at companies like Accenture, LTI, and ultimately secure a position at Yuzio with an incredible 85% salary hike!

Get Ready SDE has been a game-changer in my learning journey, providing high-quality and affordable courses in DSA and System Design. Unlike other expensive platforms, Get Ready SDE offered exceptional instruction, with Karthik simplifying complex topics like graphs and dynamic programming in a way that made them easy to grasp. The course material closely aligned with real interview scenarios, helping me improve my coding skills and confidently crack multiple interviews, leading to a significant salary hike.

Before joining Get SDE Ready, I struggled with DSA and felt overwhelmed by the competitive job market. The 9-month program in DSA, web development, and system design transformed my approach to problem-solving and coding. With expert guidance and structured learning, I gained the confidence and skills needed to excel. Thanks to this program, I secured a placement at Ecom Express, and now I feel fully prepared to take on challenges as a software engineer.

As a college student, I felt uncertain about placements and faced challenges with DSA due to the competitive job market. However, after joining Get SDE Ready’s 9-month program in DSA, web development, and system design, he significantly improved his skills and confidence. This program played a crucial role in helping him secure a placement at Ecom Express. Now, I feels highly confident in his abilities as a software engineer.

Get Sde Ready provided comprehensive interview preparation guidance, curriculum, live classes, resume building sessions to offer negotiation, mock interviews helped me get over my nervousness and crack interview at Paypal. I really love the curriculum and the way Arun teaches is really commendable.

I was trying to upskill myself from free resources on youtube. But I was not able to maintain consistency. So I joined Get SDE Ready whose proper structured curriculum has helped me be consistent and 24/7 live doubt support allowed me to clarify my doubts anytime I wanted.

I was stuck at Expedia at SDE-I position for quite some time. Also, I was not able to design well. With time, my problem solving skills were also going down because of no practise. I joined DSA & System Design Batch for 5 months that helped me grab a good promotion in my current company. I would highly recommend this course.

After struggling to get promoted, I joined Get SDE Ready’s course on DSA and System Design. The skills and knowledge I gained made all the difference, leading to my long-awaited promotion. Not just that, I was rated one of the highest performers in Amazon in that quarter.

I was working in Dunzo and was being layed off being of no funding in the company. I joined Get SDE Ready and their DSA & System Design course helped me grab placement in 4 months. I just made use of their 24*7 doubt support to clear out all my doubts and their mock interviews helped me gain a lot of confidence.

I was getting rejected in all the top product based companies but after joining Get SDE Ready, I was able to fix my resume and coding skills. That’s why cracked Salesforce after huge hustle. I liked the structured curriculum and mentorship provided by the mentors. I really like the way live classes are being conducted and on a regular basis.

I owe a great deal of my career success to Get SDE Ready! Their expert guidance not only enhanced my problem solving and design skills but also helped me crack 3 offers: Smartbear, CME and Light Fury Games with 60% hike. The placement team helped me with fixing the interviews and also guided me on how to negotiate.

I began my upskiling journey with Get SDE Ready after a lot of research and wasn’t disappointed. Before joining, I had also checked out profiles of all the instructors. I really liked the personal touch in live classes and the structured curriculum. I would highly recommend the course for interview preparation.

I had paid lakhs in one of the institutes and they didnt provide me classes. Then I found out GET SDE READY through insta ad. I was stuck in a service based company and didn’t know how to go to product based company. Get SDE Ready’s curriculum and live classes helped me shift to product based company.

I was a QA engineer in a service based company and I was really scared how I could shift my domain to sde. Get SDE Ready helped me shift to a product based company and also my domain. I was a beginner in coding. Their structured curriculum helped me learn coding.

I joined DSA & System Design Batch in January. The consistent efforts of Arun and Vinamer along with all the TAs in answering our doubts as and when we posted them gave me huge confidence. It helped me crack 2 offers. They also provided me proper guidance about how to negotiate my CTC. I would highly recommend the course to everyone.

I was a freelancer previously and wanted to build something of my own. I used to lack problem solving and design skills. After completing the DSA course with Get SDE Ready, it enabled me to start my own company and code on my own. Also, I have cracked 2 offers that have given me security that if my startup doesn’t work, I will join that.

I was very uncertain about placements in my college and then I joined Get SDE Ready. Their support and curriculum, along with live classes has helped me go forward in my career. I joined DSA & System Design batch and also took personal 1:1 mentorship with Arun that enabled me to perform really good in interviews.

I was not good in DSA during college and was looking for a job change. So I found your ad on Instagram and enrolled in DSA. I really liked the structured curriculum and the tests that were taken regularly. Because of the course, I have been able to crack 2 big companies: BharatPe and PayU.

I got placed in Kfintech on 8 LPA package after getting rejected from 8 companies in campus placement, i took the course in Jan 2024 and I got placed as a SOFTWARE ENGINEER in March 2024, your course helps me a lot in DSA as I was very very week in DSA. The structured curriculum and 24/7 doubt support helped me a lot.

Boost Your Career with a Course Completion Certificate

Earning a course completion certificate enhances your resume, demonstrating your commitment to learning and skill development. It increases your chances of getting hired by showcasing your expertise to employers. A certified qualification can set you apart from other candidates, improve your credibility, and open new job opportunities in your field.

What Our Students Are Saying

See our Students Journey here

How Siddhart Got 75% Salary Hike & Joined Swiggy | Get SDE Ready Success Story

Karan’s Journey: From Career Break to ₹30L+ Offer | Get SDE Ready Success Story

Rohit’s Journey to a Career Switch with Get SDE Ready

How Aniket prepared and cleared for Fintech company and got 80% hike | Get SDE Ready Success Story

From Rejections to 100% Hike 💯 | Get SDE Ready Success Story

How Nikil Cracked Top Tech Offers After 15 Years

How Soma Shaker Cracked Amazon SDE Interview with 150% Hike | Get SDE Ready Review

Somia’s Journey | Upskilling with Get SDE Ready | From DSA to System Design Success

Vimla Shares Her Honest Get SDE Ready Experience | 5⭐ Course Review

From Wipro to a US Startup | 85% Salary Hike | Get SDE Ready DSA Success Story

How Miraj Cracked Multiple Job Offers with 65%+ Salary Hike! | DSA & System Design Success

How Akash Landed a Dream Job at Ecom Express DSA & System Design Success Story

How Shweta is able to crack offers from Walmart, Microsoft & Expedia with Get SDE Ready | Get SDE Ready Review

How Akshita cracked Nokia and got 45% hike

Pawan got 150% hike

Ankush cracked BharatPe & PayU | 250% hike with Get SDE Ready | Interview Questions discussed

How Raghu is able to crack 3 offers with Get SDE Ready | Get SDE Ready Review

Raghav Cracks Mastercard

Prabhat's Amazing Journey with Get SDE Ready: Transforming Tech Careers Seamlessly! | Coding | Tech

Gourang's Amazing Journey with Get SDE Ready: Transforming Tech Careers Seamlessly!

Shubham's Amazing Journey with Get SDE Ready: Transforming Tech Careers Seamlessly!

Start Learning Without Worry

Try the course for 7 days. If you don’t like it, get a full refund no questions asked.

Frequently Asked Questions

Easily find answers to common questions about our courses and services

Who should join this course?

Our courses are intended for anyone aspiring to become a Software Development Engineer. This includes university students who have very basic programming knowledge (2nd year or above), working professionals looking for a career switch or trying to upskill themselves, and anyone interested in the field of software development.

Is the amount refundable if I don't like the course?

This course offers a no-questions-asked, full refund policy effective within seven days of its registration.

What is the mode of the course, online or offline?

The course is 100% online. All the classes are going to be 100% live.

What if I miss a class?

You will be getting recordings of your classes and you will have lifetime access to them.

Are there any prerequisites?

Only basic programming knowledge is required.

Will there be doubt classes?

We have 24/7 live doubt support. Also, we conduct live doubt classes regularly as well in the weekdays whose timings are from 9pm-11pm.

Is placement guaranteed after completing the course?

Yes, we offer guaranteed placement upon successful completion of the course, including all required assessments and tests. Our program is structured to ensure you’re job-ready through rigorous training, real-world projects, and interview-focused preparation. Clearing the internal tests is a key part of the process to validate your readiness for placement opportunities.

What is the duration of the course?

The course’s duration is 3 months, though it can be extended if there is a need for additional classes focused on specific topics or further doubt sessions.

I have a full time job. Not sure if I will be able to make it?

The course is for working professional only. That’s why the timings are such: Instructor classes are on the weekends from 12pm-3pm. Doubt Classes are on the weekdays from 9pm-11pm.

Would there be any certificate on completion?

Yes! you will be getting certificate of completion.

Do you provide placement assistance?

Yes we provide placement assistance.

Its in 4 steps:

We will help you create a strong resume that increases your chances of getting shortlisted by companies.
⁠We will optimise your LinkedIn profile to ensure that recruiters can easily find and connect with you.
We will conduct mock interviews to help you assess your skills and prepare you to excel in real interviews.
We provide referrals to help you apply to top companies and get your interviews scheduled.

If I face any issues with my work or, due to an emergency, I am unable to attend the batch, can I join the next batch?

Yes, we completely understand that, as a working professional, you might face challenges. You can attend the live classes in any of the next three consecutive batches.

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