1. What Does Logicmojo
System Design Course includes?

Master the skills of System Design with hands-on experience through real-world projects, and transition into a role of SDE. Swich your profile from service companies to top product companies.
Logicmojo's System Design Course includes the following features in the 3-month live course.

Live Interactive Sessions

Get Trained by MAANG Industry Experts Live classes

Practical experience through Projects

Practical experience through real-time projects

1:1 doubt clearing sessions

Personalized programs with Live classes and 1:1 doubt clearing sessions/mentorship sessions.

Job Assistance Program

Job Referrals in Product Companies, Resume Preparation Session and Mock interviews

Missed Classes ?

Attend multiple batches with multiple trainers if you miss any sessions or Topic for 1 Year subscription.

Life Time Access

Missed Classes, get lifetime access recorded lectures of all classes

peer to Peer Learning?

Slack group for peer-to-peer learning & discussion with batchmates. Hackerrank for 1:1 tests & GitHub for Code review.

Flexible Pay

Flexible EMI options on Credit cards and loan options on debit cards.

Assignments for Practise After Class

Practise question is key to crack interviews. Instructor provides assignments for all the topics covered in the class.

Competitive System Design Tests

Evaluate yourself in competitive coding tests with your batchmates.

Frequently Asked Questions

Find answers to common questions about the System Design Course, eligibility, and career impact.

Still have doubts?

Our admission counsellors are ready to help you understand if this course is right for you.

Chat on WhatsApp

This course is designed for professionals looking to scale their careers. It is highly beneficial for:

  • Software Engineers (SDE I, II, III) wanting to crack SDE-2/3 roles.
  • Tech Leads & Architects who want to master distributed systems.
  • Product Managers working closely with engineering teams.
  • Students & Freshers who want to start their career with a strong architectural foundation.

A basic understanding of any programming language (Java, C++, Python, etc.) and familiarity with basic OOPS concepts is helpful. However, we cover System Design concepts from scratch, making it accessible for developers with 0-10+ years of experience.

After completing this 3-month intensive program, you will be eligible for roles such as:
  • Senior Software Engineer
  • Backend Developer
  • Technical Lead
  • Solution Architect
  • Engineering Manager
  • Staff Engineer

Yes! We provide Lifetime Access to all class recordings. If you miss a live session due to work or an emergency, you can watch the recording on your dashboard. You also have the option to re-attend the same module in a future batch for free within 1 year.

Yes. The Job Assistance program includes:
  • Referrals to our network of 2000+ hiring partners (Product companies & Startups).
  • Resume Review and Optimization.
  • Mock Interviews with industry experts from FAANG.

2. Overview Of
System Design Advanced Course

Course eligibility

This course is primarly designed for working professionals and Freshers.

Flexible Course

Attend multiple batches with multiple trainers along with lifetime access to the course content.

1:1 mentorship

Personalized programs with Live classes from industry experts and 1:1 doubt clearing sessions.

Get ready for system design interviews

Prepare for system design rounds in 3 months of preparation

Land in your dream job with real work experience

Learn from FAANG companies
Experts & Transform your Career

Your 12-Step Learning Path

A structured journey from basics to advanced System Design mastery.

01
System Design Basics

Approach of system design problem, discuss requirement, API, data model, system components, system interface, Consistency, Availability, Latency.

02
Distributed Cache & Sharding

Caching, Cache Eviction Policies, Consistent Hashing, Zookeeper, Pooling & Streaming Concepts, Publish/Subscribe Pattern, Map Reduced.

03
Distributed System Basics

Distributed Database, Load Balancer, Distributed Cache, CDN, Cache Eviction Policies, Push & Pull Mechanism, CAP Theorem etc.

04
Microservice Architecture

Monolithic vs microservices, micro-service Architectures, fault tolerance scalable system, Service Discovery, Distributed Tracing and Monitoring etc.

05
Cloud Deployment

EC2 Instance configuration, Docker Container Deployment, cloud-native development, Pods, Running Web App in docker.

06
HLD/LLD Examples

Design System using microservice architecture, High level and low level internal system design, message queue, Kafka, API gateway, Service mesh.

07
Design Patterns

SOLID Design pattern, Singleton design pattern, factory & abstract factory design pattern, Builder design pattern, observer design pattern etc.

08
Scalable Problems

Design Problems of Real world system, Tiny URL, paste bin, Uber design, Facebook design, G-Map, Swiggy location based system, Mail server(Gmail), WhatsApp etc.

09
SQL vs No-SQL

SQL Relational/Non- Relational Database/ and NoSQL – key/value Model, Cassandra, MongoDB, Redis etc. Document Databases, Graph Databases.

10
Advanced HLD + LLD

Understanding all scalable distributed system design, HLD and LLD detail design discussion, Detail Architectural Design flow, Distributed Components etc.

11
Kubernetes & Docker

Scalability (Latency, Throughput, vertical scaling, Horizontal scaling), AWS, Kubernetes Architecture & ecosystem, Long-Polling, web-sockets etc.

12
Interview Preparation

System Design Interview question discussion with various examples. How design works, how to explain the design & cover bottle neck design issues.

Real-World System Design Projects

Learn to architect scalable systems from scratch. Hands-on implementation of HLD & LLD.

Student-Mentor Interaction In-Person Guidance Subjective Feedback
BookMyShow

BookMyShow Service Design

This is a beginner-friendly scalable real-time system using distributed system concepts. You will learn how to design with HLD/LLD a ticket booking system that supports synchronization.

Key Learning: Scalable user interaction and payment gateway integration. End-to-end complete flow implementation.

Distributed Systems Concurrency
TinyURL

Design Tiny URL

Design and Implementation of a system of TinyURL where URL shortening is used to create shorter aliases for long URLs. This is a scalable system which can be accessed by billions of users.

Key Learning: Handling concurrent requests from millions of users with minimum latency and high efficiency.

Hashing Scalability
Uber

Design Ride Sharing (Uber/Ola)

One of the favorite interview questions asked by top tech companies. Design an efficient ride-sharing system where users book and track their rides.

Key Learning: Geo-location tracking, QuadTree data structure, and real-time communication with millions of cabs.

Geo-Location Real-time Data
Social Media

Design Social Network (FB/Twitter)

Design a social network system capable of handling billions of requests. Includes features like NewsFeed generation, searching, and tagging.

Key Learning: Designing REST APIs for services. Handling Read/Write heavy systems with low latency.

Graph DB API Design

What is the Logicmojo System Design Course Syllabus?


Advance system design course curated by leading faculties and industry leaders to provide pratical learning experience with live interactive classes and detail design.

  • Techniques to start discussing the problem statement scope
  • Define all design constraints in the system
  • Finalizing the scalability, the system will support

  • System capacity/size estimation with number of users access it
  • Finalizing the target environment (Tools, library or open sources)
  • Concise the problem, support the scalability

  • Identify system level REST API to access the recourses.
  • Define parameters, return types JSON
  • Finalize read/write/delete/paste API possible in the system

  • Identify all the data models & business logic involved in backend
  • Identify all functional/Non-functional components involved
  • Finalize state machine, service layer & interfaces

  • Check reliability and redundancy
  • Components required to make low latency system
  • Database finalization, Metadata Sharding etc.

  • What is recursion, how to analyse recursion in call stacks .
  • Distributed Hash Table, LRU, In-memory Data Lookup.
  • Memcache, Read-Through, Write-Through Cache .

  • DNS, http/https, Dos, web server, abstraction layer
  • Scheduling algo, Round robin, FCFS
  • One to many, many to one communication

  • Vertical scaling, Horizontal scaling, which is better
  • Data Partitioning, Partitioning method.
  • Heartbeat, Checksum, encoding vs decoding methods, SSL

  • Synchronous asynchronous communication services
  • Publisher subscription model, MQ client/publisher
  • Proxy/No proxy load balancer configuration

  • DNS mapping, Namespace server configuration
  • Encryption, authentication & authorization, https header
  • Deploy Zookeeper cluster in a distributed environment

  • How system can achieve CAP
  • CP, AP, CA system examples
  • Consistency, Availability in databases, NoSQL

  • Distributed query processing, transaction management .
  • In Memory Databases, Caching in a distributed system
  • Event queue, fault tolerance, Consistent hashing

  • Load balancer in cloud computing, AWS
  • Content delivery network(CDN), reduce Latency
  • Reducing bandwidth, Increasing content availability and redundancy

  • Push, Poll architecture, pooling, webhooks
  • Polling and Streaming, Long pooling, webSocket

  • Master slave architecture, Leader Follow Architecture
  • Message ordering in pubsub, Kafka, ActiveMQ

  • Database sharding, replication, Key/space DB
  • Sharding architectures and types
  • Data integrity and non-repudiation, digital signature
  • Horizontal/vertical partitioning, partitioning vs sharding

  • Design video streaming service YouTube/Netflix

  • Design TinyURL Service with scalable HLD and LLD design

  • Design Ride sharing service Uber/Ola

  • Design Online Search engine and there page ranking & web crawler features architecture.

  • Design System with geolocation mapping system

  • Design Newsfeed Service in Facebook

  • Design Twitter like social networking service & its tweet search features

  • Design Instagram social networking service

  • Design API Rate Late Limiter

  • Design WhatsApp/Facebook Chat Service

  • Design Mailing service Like Gmail/Yahoo

  • Design System that supports Event Based Architecture

  • Design Calendar booking service like Google Calendar

  • Design Railway reservation system Like IRCTC

  • Design Online bus booking system like RedBus

  • Design Online ticket booking system like BookMyShow

  • How microservice architecture is better than monolithic architecture
  • Event-driven architecture, microservice architecture introduction

  • Design patterns for Microservices

  • Migrate a monolithic application to microservices

  • Load Balancer, Distributed Tracing
  • Monitoring, heartbeats, index server, load balancer
  • Scalable web applications, Stream processing

  • Fault tolerance, Service Discovery
  • API gateway , Auto-Provisioning, Resilient Services
  • Database Design in a Microservice Architecture

  • Single-Responsibility Principle.
  • Open-Closed Principle
  • Liskov Substitution Principle
  • Interface Segregation Principle
  • Dependency Inversion Principle

  • Design & implement Singleton Design Pattern

  • Design & implement Factory Design Pattern

  • Design & implement abstract factory design pattern

  • Design & implement Observer Design Pattern

  • Design & implement Strategy Design Pattern

  • Design & implement Decorator Design Pattern

  • Design & implement Adapter Design Pattern

  • Container, Images, Use configs with a Nginx service.
  • Configuring Docker environment, create Docker image

  • Connect & connect to EC2 instance using SSH

  • Managing Container with Docker Commands

  • Running Web App in docker container

  • Deployment App using docker-compose

  • MySQL, SQL joins, SQL queries etc.
  • Normalization, Persistence, ACID property

  • Key-value stores, such as Redis and DynamoDB
  • Document databases, such as MongoDB and CouchDB
  • Wide-column databases, such as Cassandra and HBase
  • Graph databases, such as Neo4J and Infinite Graph

  • Scalability, Low Latency, Fault Tolerant
  • Cassandra vs MongoDB vs Redis
  • Uses and application of Cassandra
  • Uses and application of MongoDB
  • Uses and application of Redis
  • Uses and application of Memcached
  • Uses and application of DynamoDB

  • Big Data Architecture, Database Sharding
  • Database Scaling – Horizontal vs. Vertical
  • Database Read Replicas, Database Caching

  • Data partitioning using simple hashing, Znodes
  • Architecture, Hierarchical namespace, Session, Watches

  • Data storage: Redis vs Memcached
  • How Redis scales, How Redis achieves persistence
  • How Memcached scales
  • Which is better: Redis or Memcached

  • Distributed queues and topics
  • How does ActiveMQ work ?
  • Features of ActiveMQ, RabbitMQ
  • Deployment, Synchronization methods, Messaging Techniques

  • Kafka streams using AWS cloud
  • Installing and running spring kafka, topics, producers
  • Kafka Streams project, RESTful application Kafka
  • Apache spark Query Execution
  • Handling Data Skew in Spark Joins
  • Data Caching in Apache Spark

Program Highlights

  • 85+ Hours Live sessions
  • Scalable System Design
  • 1:1 Doubt Session
  • 1 Year Subscription
  • Life time accessibility
  • Job Assistance Program
  • Peer to peer Learning
  • Mock Interview

Course Feedback?

What People Say

System Design Course Review

How it has helped them accelerate their careers to the next level.

140%

Siddharth Pande

Full Stack Developer
One of the Best Resources for Learning System Design. Logicmojo Course Helped me Multiple Times During Interview Preparation For Companies like Walmart, Oracle, and Microsoft. No Need of Any Other Online Materials.
Read More
Oracle
295%

Anjani Kumar

Software Development Engineer - 1
Very Well-arranged Course and its Amazing Lecture Delivery by Trainers. Expert Team is always Available to solve Any Technical Queries. Logicmojo Live Preparation Training Helps me to Crack Zynga and Now Amazon Interview.
Read More
Zynga
190%

Afnaan Rafique

Software Engineer 2
I have a very great experience with Logicmojo. Learning by doing is a great way to learn something which Logicmojo team encouraged me to do so. The course has a big contribution to my success.
GlobalLogic
270%

Piyush Mittal

Senior Developer
The Course Curriculum is of the Best Quality Along with the Best Learning Experience from my Tutor. Best Course to Prepare For System Design Interview. I Cracked Paytm, Adobe, Intuit, and Microsoft. Finally joined Microsoft at 1.3 Cr LPA Hyderabad MS IDC
Paytm
170%

Diwakar Choudhary

Staff Engineer/Manager
Excellent Course for Interview Preparation, Very Straight to the Point ,In-Depth Coverage of Every Point in Live Classes. Speecially Focus on Practical Implementation of Every Coding & Architectiral Problems.
Cirtix
160%

Priya Singh

Senior Software Engineer
The Course Curriculum is of Best Quality Along with Good Coding Problems that Discussed in the Class. Materials are Helpful even After Completion of the Course.
Read More
MindTree
210%

Mohammed Shirhaan

Lead Engineer
For Learning and Growing in your Tech Carrier, I Would Highly Recommend to Attend the 7 Months Program, it Help you in Very Way to Achieve your Dreams. Very Structured Course, Covering Almost all Techniques and Concepts of Solving Design Problems.
Read More
Informatica
210%

Arpit Singh

Senior Software Engineer - 1
Thank you, Logicmojo Team. Your classes are amazing. All topics are covered sequentially, and the techniques and patterns of System Design are the best parts of the course.
130%

Rajnish Kumar

Staff Engineer
Great course! Definitely helped me open some new doors in understanding how algorithms work and implementing solutions for the different exercises. Live Courses are recommended for Working Professionals.
Cred
220%

Aravindo Swain

Software Engineer - II
I Would say the Best Part is the Explanation by the Trainer, Concise and Clear. Great Quality of Online Materials and Classes, It Covers System Design Problems asked During Interviews
Oracle
View more reviews

6. Skills You Will Master

We don't just teach topics; we build complete competency profiles. Here is what you will achieve.

System Architecture

Master the art of designing high-level blueprints and making critical trade-off decisions.

  • Architecture Design
  • HLD + LLD (High & Low Level)
  • Design Patterns (SOLID, GOF)
  • Product Development
  • SAAS / IAAS Models

Scalability & Core

Learn how to take a system from 100 users to 100 million users without downtime.

  • Distributed Systems
  • Scalability Strategies
  • Reliability & Availability
  • Cloud Computing (AWS/Azure)

Backend Engineering

Dive deep into the implementation details, data storage, and communication protocols.

  • Database Management (SQL/NoSQL)
  • Performance Optimization
  • API Design
  • REST & Microservices

7. Master the Tech Stack

Hands-on experience with the industry's most demanding tools.

MongoDB

MongoDB / Cassandra

Microservices

Microservices

Distributed Cache

Distributed Cache

SQL NoSQL

SQL / NoSQL

Apache Spark

Apache Spark

Elastic Search

Elastic Search

Design Pattern

Design Pattern

OOPS

OOPS

Kafka

Kafka

AWS Azure

AWS / Azure

Docker

Docker

Kubernetes

Kubernetes

MongoDB

MongoDB / Cassandra

Microservices

Microservices

Distributed Cache

Distributed Cache

SQL NoSQL

SQL / NoSQL

Apache Spark

Apache Spark

Elastic Search

Elastic Search

Design Pattern

Design Pattern

OOPS

OOPS

Kafka

Kafka

AWS Azure

AWS / Azure

Docker

Docker

Kubernetes

Kubernetes

8. Unlock High
Salary Packages

System Design expertise is the #1 factor for moving from SDE-1 to Senior & Architect roles in Product companies.

161% Growth

In job listings for System Architects

High Demand

Top Product companies actively hiring

6-12 LPA
Software Intern
15-25 LPA
Software Engineer
25-45 LPA
Senior Developer
45-70 LPA
Tech Lead/Manager
70+ LPA
System Architect

9. What is the Learning Path to become System Architect?


Get Trained

Submit Assignments

Work on Real Life Architectural Projects

Bootcamps

Job Readiness

Intensive Interview Preparation



Why Choose Logicmojo?

We don't just teach coding; we architect your career transformation.

End-to-End Job Assistance

It's not just about learning; it's about getting hired. We provide exclusive referrals to 2000+ hiring partners, resume optimization by FAANG recruiters, and unlimited mock interviews until you get placed.

1-Year Flexi Pass

Life happens. If you miss a batch or fall behind, you can switch batches or retake modules for free within 1 year. No questions asked.

Live FAANG Mentorship

Learn directly from engineers working at Google, Microsoft, and Amazon.

Unlike recorded courses, our Live Interactive Sessions allow you to ask doubts instantly, get code reviews, and understand the "Why" behind every architectural decision.

Rated 4.8/5 by 8,000+ Students

7-Day Free Trial

Don't just take our word for it. Attend a Live Demo Session and experience our teaching quality before you pay a single rupee.

Peer-to-Peer Learning

Join a private community of ambitious developers. Collaborative coding, system design discussions, and network building.

Meet Your Instructors

Learn directly from industry veterans who have built scalable systems at top product companies.

Ranjan Kumar Head Instructor

Ranjan Kumar

Senior Developer at Amazon (Seattle, US)

Ranjan has held senior developer roles at top product organizations including Microsoft and Amazon. With over 6+ years of teaching experience, he is a well-known tutor for simplifying complex System Design concepts. He completed his Master's degree at Stony Brook University.

Ex-Amazon Ex-Microsoft 6+ Yrs Exp

Aman Kumar

Full Stack Developer at WalmartLabs

Aman is currently working at WalmartLabs as a Senior Developer.

Mohamed Shirhaan

Software Development Engineer

Shirhaan working as R & D Group of WalmartLabs as senior Developer.

Sankalp Jain

Senior Developer

Sankalp is From IIT Kgp worked as a senior developer.Experienced in the field Designing.

Ravi Singh

Senior Architect

Ravi has more than 14 years of experience and has worked as senior Architect.

The Demand for
System Architects
is at an All-Time High

Don't limit your career. Product companies are aggressively hiring developers who can build scalable, distributed systems, not just write code.

> 50%

of jobs in the top income quartile specifically require System Design & Architecture skills.

₹20 - 45 LPA Average Base Salary
For SDE-2 & Senior Roles (2024-25)
161% Listing Growth
In System Design roles
15-30% Annual Hike
Projected for 2025

Get Hired

Work on real time system to get hired at:

Trusted By the Best

Our Experts Hail From

Logo
Google
Logo
Amazon
Logo
Microsoft
Logo
Walmart
Logo
Adobe
Salesforce
Oracle
Logo
Google
Logo
Amazon
Logo
Microsoft
Logo
Walmart
Logo
Adobe
Salesforce
Oracle
Uber
LinkedIn
Atlassian
PayPal
Flipkart
Goldman
Cisco
Intuit
VMware
Nvidia
Zoho
Swiggy
Uber
LinkedIn
Atlassian
PayPal
Flipkart
Goldman
Cisco
Intuit
VMware
Nvidia
Zoho
Swiggy

Grab valuable certification

Course Completion Certification

Experience Certification

Participate in projects to earn a certificate of project experience. Additionally, begin preparing for your desired job.

  • Step by step program for gradually enhancing coding skills up to the level of FAANG companies.
  • Learn from experts in live interactive classes, practice problems with the like-minded people
  • Get placed in product companies after completing comprehensive training of Data structures & Algorithms from Bangalore's leading institute. Also, boosting your confidence to appear in MNC interviews.

Talk with our expert

The Logicmojo Advantage

How We Stand Out

Flexible Learning Schedule

  • Weekend-Only Batches: Live classes on Saturday & Sunday, designed specifically for working professionals.
  • No Work Conflict: Learn without disturbing your 9-5 office schedule.
  • Instant Recordings: Missed a class? Watch the HD recording available immediately on your dashboard.
Check Batch Timings

1-Year Flexi Access

  • Missed a batch? No problem. Attend multiple batches with different trainers.
  • Pause your course for personal emergencies and resume later.
  • Unlimited access to recorded sessions for lifetime revision.
Learn Flexible Options

Job Assistance

  • Referrals to 2000+ hiring partners (Product & Startups).
  • Mock Interviews with FAANG experts to build confidence.
  • Exclusive access to hidden job openings and internal portals.
Talk to Career Coach

Admission Process

Follow these 3 simple steps to start your System Design journey.

1

Attend Demo

Join a Free Live Session with your mentor to understand the curriculum and teaching style.

2

Talk to Expert

Schedule a call with a Counsellor. Get your profile reviewed and clear your doubts.

3

Get Started

Enroll in the live cohort and begin your journey to becoming a System Architect.

Upcoming Cohort Deadline

Admissions close once the required number of applicants enroll. Apply early to secure your seat for the upcoming batch.

4th Jan 2025 Enroll Now

Got Question regarding next cohort date?

System Design Course FAQs

Live Interactive Course

Answer by Ravi Singh (Senior Architect, Walmart) | Last updated: October 24, 2025
Ravi Singh
Why Trust This Expert

Ravi is a Senior Architect with 14+ years of experience in building distributed systems at scale (Walmart, Intuit). Having interviewed 100+ candidates for SDE-3 and Architect roles, he knows exactly which courses teach "production-ready" skills versus just theoretical fluff.

Our Evaluation Snapshot
  • Best for Interactive Learning: LogicMojo (Live Classes + Mentorship).
  • Best for Quick Revision: Grokking the System Design Interview (Text-based).
  • Best for Visual Learners: ByteByteGo (Diagram-heavy).

Choosing the "best" course depends entirely on your learning style. If you are an experienced professional targeting top product companies, you need a course that goes beyond basic load balancing and dives into trade-offs, concurrency, and real-world architectural patterns. Below is a comparison of the top 3 industry-standard resources.

Feature LogicMojo (Live) Self-Paced (Grokking/ByteByteGo)
Interaction
High. Live Q&A with Architects allows you to discuss "Why" not just "How". None. Static content; no one to correct your thought process.
Depth
HLD + LLD. Covers both High-Level architecture and Low-Level class design. HLD Only. Often skips Low-Level Design (LLD) which is crucial for SDE-2.
Mock Interviews
Included. Practice with FAANG interviewers. Not Included. You must pay extra for separate mock platforms.
1. LogicMojo System Design Course (Best Overall)

The most comprehensive program for serious learners. It combines live interaction with a structured roadmap tailored for SDE-2 to Architect transitions.

Key Features:
  • Live Weekend Classes: Interact directly with MAANG Architects.
  • 1:1 Mentorship: Personalized guidance to fix your weak areas.
  • Mock Interviews: Unlimited practice with feedback.
Curriculum Focus:
  • Advanced Concepts: Consensus Algorithms (Paxos/Raft), Distributed Caching.
  • Real-World Systems: Designing Uber, Google Maps, Chat Apps.
2. Grokking the System Design Interview (Best for Reading)

The classic text-based course. Ideally suited for candidates who prefer reading documentation over watching videos.

Key Features:
  • Text-Based: Faster to consume than video courses.
  • Pattern Recognition: Teaches reusable architectural patterns.
  • Lifetime Access: Buy once, keep forever.
Curriculum Focus:
  • Core Building Blocks: Load Balancers, Proxies, Databases.
  • Standard Problems: 15+ classic design problems (Pastebin, Instagram).
3. ByteByteGo by Alex Xu (Best for Visuals)

Known for its incredible diagrams. It simplifies complex systems into easy-to-understand visuals, great for beginners.

Key Features:
  • Visual-First: Complex flows explained via simple diagrams.
  • Newsletter Style: Regularly updated with new case studies.
  • Beginner Friendly: Low barrier to entry.
Curriculum Focus:
  • Scaling 101: From single server to millions of users.
  • Modern Case Studies: YouTube, Ad Click Aggregators.
Expert Advice

Don't just watch, Draw. System Design is a spectator sport. If you cannot draw the architecture of a system like Twitter on a whiteboard within 45 minutes, you are not ready. Practice drawing diagrams daily.

Answer by Aman Kumar (Full Stack Developer, WalmartLabs) | Last updated: October 26, 2025
Aman Kumar
Why Trust This Expert

Aman works as a Full Stack Developer at WalmartLabs. He successfully transitioned from a primarily frontend-focused role to designing scalable backend systems. He understands the exact knowledge gap non-backend engineers face and how to bridge it effectively.

Readiness Checklist
  • Not Mandatory: You do NOT need years of backend experience. Basic coding logic is enough.
  • What is Required: Familiarity with at least one OOP language (Java, Python, or C++).
  • The Gap: You will need to learn concepts like "Networking" and "Databases" from scratch, which good courses cover.

No, it is not a hard prerequisite. While backend experience helps, System Design is more about "Logic" and "Architecture" than writing complex backend code. Many Frontend Engineers, Mobile Developers, and Freshers successfully learn System Design by focusing on the fundamental building blocks (Load Balancers, Caching, DBs) rather than implementation details.

Topic Barrier With LogicMojo (Beginner Friendly) Self-Study (Without Backend Exp)
Databases
Foundational. Explains SQL vs NoSQL from ground zero before scaling. Confusing. Hard to understand Indexing and Sharding without guidance.
API Design
Structured. Teaches REST & gRPC protocols as part of the curriculum. Fragmented. Difficult to connect APIs to the backend logic.
Scalability
Visual. Uses diagrams to explain how one server becomes many. Abstract. Very hard to visualize without prior exposure.
1. LogicMojo System Design Course(Best for Non-Backend Devs)

We recommend this because it acts as a bridge. It covers the essential Backend Engineering concepts (OS, Networking, DBs) alongside high-level design.

Curriculum for Beginners:
  • Module 1: CS Fundamentals (OS, Networks, Threads).
  • Module 2: Database Internals (How B-Trees work).
  • Module 3: High-Level Architecture (Scaling).
Support:
  • Live Q&A: Ask "Basic" questions without judgment.
  • Code Reviews: Get feedback on your API design.
2. Udemy: Fundamentals of Backend Engineering (Best for Tech Basics)

Created by Hussein Nasser, this is the bible for understanding the "Plumbing" of the internet. Highly recommended if you feel your networking knowledge is weak.

Key Features:
  • Deep Dive: TCP/UDP, TLS, and HTTP versions.
  • Backend patterns: Proxies, Sidecars, and Gateways.
Best For:
  • Frontend Devs moving to Backend.
  • Self-Paced technical strengthening.
3. Educative.io: Web Application Architecture (Best for Overview)

A lighter, text-based introduction to how web apps work. Good for getting a bird's eye view before diving deep.

Key Features:
  • No Setup: Read and learn in the browser.
  • Diagrams: Simple block diagrams of layers.
Best For:
  • Absolute Beginners in Architecture.
Expert Advice

Don't let "Imposter Syndrome" stop you. Frontend developers make great Architects because they understand the "User Impact" of latency better than anyone else. Use that unique perspective.

Answer by Ranjan Kumar (Senior Developer, Amazon) | Last updated: October 28, 2025
Ranjan Kumar
Why Trust This Expert

Ranjan cracked interviews at Amazon, Microsoft, and Adobe. He currently conducts System Design rounds at Amazon. He knows exactly why candidates fail: usually not because they don't know the technology, but because they fail to handle ambiguity and trade-offs correctly.

FAANG Success Factors
  • Structured Thinking: FAANG interviewers look for a systematic approach (Requirements -> API -> DB Schema -> Scale).
  • Handling Trade-offs: You must explain why you chose Cassandra over MongoDB (CAP Theorem).
  • Driver Seat: In FAANG, you must lead the discussion. A passive candidate is a rejected candidate.

Yes, definitely. FAANG interviews are very different from standard tech interviews. They are open-ended (e.g., "Design Twitter"). Without a course, candidates often jump straight to drawing boxes without defining constraints. A structured course teaches you the framework to take a vague 1-line problem and turn it into a scalable architecture in 45 minutes.

Interview Metric With Expert Training (LogicMojo) Self-Preparation
Communication
Proactive. You learn to ask clarifying questions (DAU, Read/Write ratio) before designing. Reactive. Candidates often wait for the interviewer to guide them (Red Flag).
Justification
Data-Driven. You justify choices using back-of-the-envelope calculations. Buzzword-Driven. Using "Kafka" just because it's popular, without knowing why.
Time Mgmt
Optimized. You know exactly how many minutes to spend on HLD vs LLD. Unbalanced. Often running out of time before discussing Scalability.
1. LogicMojo System Design (Best for FAANG Simulations)

This course is modeled specifically on the interview rubrics of Amazon and Google. It focuses heavily on the "Trade-off" discussions that define FAANG interviews.

Key Features:
  • FAANG Mentors: Mock interviews with engineers actually working at MAANG.
  • Live Feedback: Immediate correction on your architectural choices.
Curriculum Focus:
  • Scale: Designing for 100M+ users.
  • Availability: 99.999% uptime architectures.
2. System Design Primer (Best Free Resource)

An open-source GitHub repository that collects resources on every major system design topic. It is the "Bible" for self-learners.

Key Features:
  • Deep Theory: Extensive reading material on consistent hashing, Paxos, etc.
  • Flashcards: Anki decks for memorizing concepts.
Best For:
  • Deep Research: If you have 6+ months to prepare.
3. HelloInterview (Best for AI Mock Interviews)

A newer platform that offers AI-driven mock interviews specifically tailored for FAANG rubrics.

Key Features:
  • AI Feedback: Instant grading on your system design answers.
  • Company Guides: Specific guides for Meta vs. Google interviews.
Best For:
  • Last Mile Prep: Testing yourself before the real day.
Expert Advice

In FAANG interviews, there is no single correct answer. The interviewer is testing your ability to defend your choices. Never say "I will use Redis" without explaining why Redis is better than Memcached for your specific use case.

Answer by Sankalp Jain (Senior Developer, IIT Kgp) | Last updated: October 29, 2025
Sankalp Jain
Why Trust This Expert

Sankalp is an IIT Kharagpur alumnus and Senior Developer who advocates the "Build to Learn" methodology. Having architected high-scale systems, he understands that simply drawing boxes isn't enough—you need to define Data Models, APIs, and Partitioning strategies to truly "design" a system.

Project Portfolio
  • Core Systems: Designing a URL Shortener (TinyURL) and a Pastebin service (Data Consistency).
  • High Scale: Architecting a Video Streaming Service (Netflix/YouTube) focusing on CDN and Latency.
  • Real-Time: Designing a Chat App (WhatsApp) or Ride-Hailing Service (Uber) handling concurrency.

Theory is useless without application. A top-tier System Design course doesn't just teach you definitions; it forces you to apply them to Case Studies. You won't just learn "What is Sharding?"; you will apply Sharding to a "Design Twitter" problem to handle 50 million tweets a day.

Design Depth With LogicMojo (Deep Dive) Standard Tutorials (Surface Level)
Data Modeling
Schema Design. You define SQL tables vs NoSQL collections and choose Partition Keys. Abstract. "We use a Database" is the only explanation given.
API Definition
Precise. You write REST/gRPC endpoints (e.g., `POST /tweet` with params). Vague. "Client talks to Server" without protocol details.
Trade-offs
Analyzed. CAP theorem applied: "Why Availability over Consistency here?" Ignored. Assumes one "Perfect Architecture" exists (False).
1. LogicMojo System Design Course (Best for Live Case Studies)

Our top pick for projects because every weekend session is a "Live Design Workshop" where you architect a new system from scratch with the mentor.

Project List:
  • Design Messenger: WebSocket, Long Polling, Queue management.
  • Design BookMyShow: Handling Concurrency (Locking mechanisms).
  • Design G-Drive: Block storage, Chunking, and Synchronization.
Learning Outcome:
  • End-to-End Flow: From Load Balancer to Database Shard.
  • Capacity Planning: Calculating storage/bandwidth for 5 years.
2. Grokking the System Design Interview (Best for Pattern Recognition)

Famous for its 15+ standardized case studies. It provides a written blueprint for almost every question asked in FAANG.

Key Case Studies:
  • Design Instagram: Newsfeed generation and Image storage.
  • Design Dropbox: ACID properties and file chunking.
  • Design Web Crawler: Politeness, BFS/DFS for crawling.
Focus Area:
  • Scalability Patterns: Replicating success across problems.
3. CodeKarle / ByteByteGo (Best for Visual Breakdown)

Excellent for understanding the "Flow" of data. The diagrams help visualize how components like Cache and DB interact.

Key Features:
  • Visual Architecture: Step-by-step diagram evolution.
  • Modern Examples: Ad Aggregators, Metric Monitoring Systems.
Best For:
  • Visual Learners who struggle with text-heavy docs.
Expert Advice

Don't just memorize the architecture of Twitter. Understand the "Why". Why use Redis instead of Memcached? Why use Cassandra for the timeline? Interviewers dig into these specific choices.

Answer by Diwakar Choudhary (Staff Engineer, Walmart/Citrix) | Last updated: October 30, 2025
Diwakar Choudhary
Why Trust This Expert

Diwakar has 14+ years of industry experience and has worked as an Architect in top product organizations like WalmartLabs, Visa, and Citrix. He understands the difference between "cramming" for an interview and actually learning to design systems that survive in production.

Timeline Estimate
  • Crash Course (Interview Only): 4-6 Weeks. Focuses on memorizing standard patterns for 5-6 common questions.
  • Proficiency (Real World): 3-4 Months. Required to truly understand trade-offs, database internals, and concurrency.
  • Commitment: Requires 8-10 hours per week of focused study and practice.

System Design is a marathon, not a sprint. Unlike coding (where a solution is right or wrong), architecture is about trade-offs. It takes time to develop the intuition to choose Cassandra over Postgres or REST over gRPC. Rushing this process usually leads to "shallow knowledge" which interviewers easily detect.

Learning Depth Structured Program (3-4 Months) Crash Course / YouTube (1 Month)
Understanding
Deep Intuition. You understand the "Why" behind every component choice. Superficial. You memorize diagrams without understanding the bottlenecks.
Retention
Long-Term. Skills apply to your actual job and future promotions. Short-Term. Likely to forget concepts immediately after the interview.
Practice
Extensive. 10+ Design problems solved end-to-end. Limited. Watching videos without actually designing anything yourself.
1. LogicMojo System Design Course (Best for Mastery)

The 3-month curriculum is perfectly paced for working professionals. It builds from "Basics of Scalability" to "Complex Microservices" systematically.

Timeline Breakdown:
  • Month 1: Core Concepts (LB, Caching, DBs).
  • Month 2: High-Level Architecture (HLD) Case Studies.
  • Month 3: Low-Level Design (LLD) & Mock Interviews.
2. Grokking the System Design Interview (Best for Speed)

If you have an interview in 2 weeks, this is your best bet. You can read through the text-based modules much faster than watching videos.

Timeline Breakdown:
  • Week 1: Read through the "Glossary" of System Design basics.
  • Week 2-3: Read 1 Design Problem per day (Instagram, Uber, etc.).
3. Designing Data-Intensive Applications (Book)

The "Gold Standard" book by Martin Kleppmann. It is not a course, but a deep dive into database internals.

Timeline Breakdown:
  • 4-6 Months: Reading this book takes time but makes you an expert.
  • Best For: Architects and Senior Principals.
Expert Advice

Consistency beats intensity. Spending 1 hour every day is far more effective than cramming 10 hours on a Sunday. System design concepts need time to "sink in".



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