harkirat-Cohort-2
Learn Live 0 100 Complete by harkirat Singh with comprehensive video tutorials and hands-on projects.

Meet Your Instructor: Harkirat-Singh
Harkirat Singh is an accomplished full-stack engineer, tech entrepreneur, and educator renowned for building modern web applications and mentoring developers through practical, hands-on cohorts. As the founder of 100xDevs, Harkirat has revolutionized developer education by creating immersive, project-based learning experiences that take students from beginner to job-ready in full-stack development. His teaching philosophy emphasizes building real-world applications, understanding system design principles, and mastering modern web technologies. With extensive experience at top tech companies, Harkirat brings industry insights and best practices to his cohorts, helping thousands of students land their dream jobs in web development. The 100xDevs initiative represents Harkirat's vision of democratizing high-quality tech education and making world-class developer training accessible to students regardless of their background or financial situation. Through his innovative cohort-based learning model, Harkirat has created a community-driven educational experience that goes far beyond traditional online courses. Each cohort is carefully structured to simulate real-world development workflows, with students working on actual projects, collaborating with peers, and receiving personalized mentorship from experienced industry professionals. Harkirat's courses cover the entire full-stack development spectrum, from fundamental concepts like HTML, CSS, and JavaScript to advanced topics including React, Node.js, databases, authentication, deployment, and system design. His curriculum is constantly updated to reflect the latest industry trends and technologies, ensuring that students learn skills that are immediately relevant in today's job market. What makes Harkirat's teaching particularly effective is his focus on building complete, production-ready applications rather than isolated code snippets. Students in his cohorts work on multiple projects throughout the program, each one increasing in complexity and introducing new concepts and technologies. This progressive learning approach ensures that students develop both theoretical understanding and practical skills simultaneously. Harkirat's expertise in system design is a standout feature of his teaching. He helps students understand how to architect scalable applications, design efficient database schemas, implement proper authentication and authorization, and deploy applications to production environments. His system design sessions are renowned for breaking down complex architectural decisions into understandable components, helping students think like senior engineers. Beyond technical skills, Harkirat places strong emphasis on developer best practices, code quality, testing, version control, and collaboration. He teaches students how to write clean, maintainable code, conduct code reviews, work with Git and GitHub effectively, and collaborate in team environments using industry-standard tools and workflows. The community aspect of 100xDevs is another key differentiator. Harkirat has fostered a supportive learning environment where students help each other, share resources, celebrate successes, and work through challenges together. This sense of community has been instrumental in helping many students stay motivated and complete the rigorous program. Harkirat's open-source contributions and commitment to transparency in education have made him a respected figure in the developer community. He regularly shares insights about the tech industry, career development, and the skills that matter most for aspiring developers. His honest and practical advice has helped thousands of students make informed decisions about their learning paths and career goals. The success stories from Harkirat's cohorts speak volumes about the effectiveness of his teaching approach. Many graduates have secured positions at top tech companies, startups, and have even started their own successful ventures. The comprehensive nature of his curriculum, combined with his industry experience and dedication to student success, makes Harkirat one of the most effective and impactful educators in the field of full-stack web development. One of the unique aspects of Harkirat's teaching is his emphasis on building real-world projects that students can showcase in their portfolios. Throughout the cohort program, students build multiple applications including e-commerce platforms, social media apps, payment systems, and more. These projects are not just simple tutorials but complete applications with proper architecture, error handling, testing, and deployment. This portfolio-building approach helps students stand out in job interviews and demonstrates their ability to build production-ready applications. Harkirat's expertise extends to modern web technologies including TypeScript, GraphQL, WebSockets, and microservices architecture. He teaches students how to use these technologies effectively in real-world scenarios, ensuring they stay current with industry trends and best practices.
Experience: 5+ years
Students Helped: 500000+
Specialization: Full-Stack Web Development
Course Overview
This comprehensive course is designed to take you from foundational concepts to advanced implementation in full-stack web development. You'll learn through hands-on project based learning with open source emphasis and live cohort-structured teaching, building real-world projects that demonstrate your skills and enhance your portfolio.
Whether you're looking to start a new career in technology or advance your current skills, this course provides the structured learning path and practical experience you need to succeed in today's competitive tech industry.
Course Curriculum
Course Content
How to join discord
Neovim Setup
Mumbai meetup
Mumbai meetup (Enhanced audio)
Week 7.2 | Intro to Typescript - 23/07/23
Week 7.3 (26 July, 2023) - Assignment on Typescript
Week 8.1 | Custom hooks, Generics and zod (29-7-2023)
Week 10.2 | NextJS
A beginners guide to contribute to CMS
React Interview Questions
ESLInt, Prettier
Week 14.1 | Trpc Intro
Week 14.2 | TRpc Part 2
Week 9.2 | Github CI/CD
Week 19.1 | Real time communication, Distributed computing (Zoom upload) (22 oct 2023)
Week 16.1 | GraphQL
Week 16.2 | graphql and setting up project locally
How to solve assignments
35.2 | AMA on ZOOM
15.3 | docker-compose, exec command, docker push command
13.3 | Offline video - Backend of Blogging app
Orientation
Week 1.2 | JS Foundations
How to solve assignments
Week 1.3 | Offline class | Basic JS APIs
Week 1.4 | Loops, Functions, Callback functions
Week 1.5 | Async functions, Promises and async await
Week 2.1 | Promises and async JS revision, doubt session (Zoom upload)
Week 2.2 | Express and Backend (Zoom upload)
2.3 | Bash and terminal
Week 2.4 | Bash and Terminal (Advance)
Week 2.5 | Express basics
2.6 | map, filter, arrow fns
2.7 | Git basics to advance
Week 3.1 | Middlewares, global catches and zod
Week 3.2 | Dynamic backend Authentication using Express, JWT and monogodb
3.3 | Middleware recap and assignments
3.4 | JWT recap and assignment
4.0.1 | DOM Introduction
week 4.1 | DOM
4.2 | Foundation for React
4.3 | Mongo offline
5.1 | Diving into React
Week 5.1 | React (Local recording)
week 5.2 | Creating a To-Do App
week 5.2 | Creating a To-Do App (Re-upload)
Week 6.1 | Popular react hooks, React deep dive
Week 6.2 | useEffect, useMemo, useCallback
6.3 | Recap of everything in react, Intro to useRef
6.4 | Assignment solutions
7.1 | Context, prop drilling
7.2 | Recoil
7.3 | Recoil Deep dive
Week 12.2 | Tailwind, flex, grids , react recap (27th Aug)
8.1 | Tailwind class - Cohort 2
8.2 | Building PayTM Project
8.3 | axios vs fetch
8.4 | PayTM Frontend
9.1 | Custom hooks
9.2 | Typescript Intro
9.3 | Generics, enums, imports, exports
Week 13.1 | SQL
16.1 | Websockets | Cohort-3
Week 13.2 | Prisma ORM
16.2 | WebSockets Project - Chat app | Cohort-3
week 10.1 | Postgres
Week 30.2 | Exchange Project Part 2
week 10.2 | Prisma
11.1 | Serverless Fns
11.2 | Deploying to AWS
Week 11.3 | Certificate Management
Week 12.1 | Deploying Frontends on AWS
12.2 | Typescript Advance APIs
Week 8.2 | Deploying npm packages, intro to mono repos
12.3 | Actionable Docker to start packages
12.4 | SQL Joins and Relationships
12.5 | Prisma Recap, Relationships in Prisma
Week 12.6 | Connection pooling in serverless envs
Week 13.1 | Project (Local recording)
13.2 | AMA Session
13.3 | Offline video - Backend of blogging app (improved audio))
13.4 | Frontend of Blogging app
13.4 | Frontend of the blogging app
Week 14.1 | NextJS Intro
14.2 | Next Backend
14.3 | NextJS Backend (Offline video)
15.1 | Docker part 1
15.2 | Docker part 2
15.2 | Docker part 2 (Reuploaded)
15.4 | Bind mounts
16.1 | Monorepo part 1
16.2 | Monorepo part 2
16.3 | Authentication using cookies
16.4 | NextAuth
17.1 | PayTM part 1
17.2 | PayTM Part 2
Week 18.1 | PayTM Part 3
18.1.2 | PayTM Part 3 (continued)
18.2 | CI/CD
19.1 | Middlewares in Next.js
19.2 | CSR vs SSR vs Static Site Generation
19.3 | Advance backend comm/Websockets
19.4 | Redis, Pub subs and Queues
1-100 orientation, setting up cms/daily | 13/04
20.1 | OpenAPI Spec (Offline)
Week 12.1 | OpenAPI Spec (26 August 2023)
21.1 | Rate limitting, DDoS and Captchas
Week 21.2 | Singleton pattern + Pub subs
Week 22.1 | Capacity estimation, Horizontal and vertical scaling, Scaling Node.js and ASGs (1/2)
Week 22.2 | Auto Scaling Groups
Week 22.3 | Indexing in databases
Week 22.4 | Normalization in DBs
23.1 | WebRTC
Week 23.2 | Webrtc, setting up projects, 0-1 farewell
Week 24.1 | GRPC
Week 24.2 | Testing in the MERN stack
24.3 | Testing from start (Offline video)
Week 25.1 | Integration and end to end tests
Week 26.1 | Monitoring, Logging and Newrelic
Week 26.2 | Prometheus and Grafana
Week 26.3 | Monitoring using Prometheus and Grafana - Part 1
Week 26.4 | Monitoring using Prometheus and Grafana - Part 2
27.1 | Kubernetes Part 1
Week 27.2 | Kubernetes Part - 2
28.1 | Kubernetes Part 3
Week 28.2 | Kubernetes Part 4
29.1 | Kubernetes Part 5 (Volumes, PV, PVCs)
Week 29.2 | Kubernetes Part 6 (HPA, Node Autoscaling)
Week 30.1 | Exchange Project - Part 1
Week 30.2 | Exchange Project Part 2
31.1 | Exchange Part 3 (Backend)
31.2 | Exchange Part 4 - Scalable Websocket app
Week 32.1 | Kafka
32.2 | Docker swarm, container orchestration
33.1 | Zapier part 1
33.2 | Zapier part 2
33.3 | Zapier Part 3 (Primary Backend)
33.4 | Zapier frontend (Auth and landing page)
33.5 | Zapier frontend Continued (Zaps and zap page)
34.1 | Zapier Setup, AMA (Live)
34.2 | Zapier finishing Frontend and Backend
34.3 | Live Open source contributions
34.4 | Zapier - Sending emails and Solana via workers
35.1 | Adhoc coding - PayTM Merchant app
Requirements
- Basic computer knowledge
- Internet connection for video streaming
- Code editor (VS Code recommended)
- Motivation to learn and practice
Course Features

Course Details
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