Mastery Path

A free, structured, module-wise training library

98 courses 3,600+ lessons 15 categories $0 cost, always

Mastery Path is a collection of 98 free, self-paced courses — one per language, platform or discipline — built and maintained by Vinod Bhanuja. Every course follows the same shape: Level 1 through Level 4, each level made of short topic modules with runnable examples, and a hands-on project that ties the level together. There's no signup and no paywall; pick a track below and start at Level 1.

Coverage spans programming languages (Python, Java, Go, Rust, TypeScript and 14 more), cloud platforms, AI/ML and LLM development, data engineering and analytics, embedded systems, security, testing/QA, DevOps infrastructure, and product/engineering leadership — see the full index below.

— Vinod Bhanuja

🎥 Prefer video? Watch the Mastery Path video series on YouTube — Shorts and full walkthroughs of these lessons.

"Structured enough to finish. Deep enough to matter."

— why every course here follows the same four levels

Popular starting points

🐍 Python Syntax to production-grade APIs in four levels. Start Level 1 → 🟨 JavaScript The web's core language, from basics to async mastery. Start Level 1 → ☁️ AWS Cloud fundamentals through real architecture patterns. Start Level 1 → 🤖 AI / ML Models, pipelines and practice — not just theory. Start Level 1 → ⚛️ React Build modern, interactive UIs the idiomatic way. Start Level 1 → 🏗️ System Design Ace the interview, then build at real scale. Start Level 1 →

Learning tracks — curated sequences across courses, by goal

🌐
Full-Stack Web Developer
Ship a complete web app, frontend to backend.
1🎨 HTML & CSS 2🟨 JavaScript 3🔷 TypeScript 4⚛️ React 5🟩 Node.js 6🔗 REST API
☁️
Cloud & DevOps Engineer
Containerize, orchestrate, and ship to production.
1🐧 Linux 2🐳 Docker 3☸️ Kubernetes 4🌍 Terraform 5☁️ AWS 6🔁 CI/CD
🛠️
Data Engineer
Build pipelines that move and shape real data.
1🐍 Python 2🗄️ SQL 3🛠️ Data Engineering 4⚡ PySpark 5🏞️ ETL & Data Lake 6🧱 Databricks
🤖
AI / ML Engineer
Go from math foundations to shipping AI agents.
1🐍 Python 2➗ ML Math Foundations 3🤖 AI/ML 4🧠 LLM Dev 5✍️ Prompt Engineering 6🕹️ AI Agents
🧪
QA / SDET
Automate testing across the modern web stack.
1🧪 Python Testing 2🧭 Selenium 3🌲 Cypress 4🎭 Playwright 5🔁 CI/CD
🛡️
Security Engineer
Think like an attacker, build like a defender.
1🐧 Linux 2🛡️ Cybersecurity 3🎯 Ethical Hacking
💻 Languages 20 20 languages, start to finish.
🐍 Python ☕ Java 🟨 JavaScript 🔷 TypeScript 🔵 C# 🐚 Shell/Bash 💻 PowerShell 🇨 C ➕ C++ 🐹 Go 🦀 Rust 🗄️ SQL 💎 Ruby 🐘 PHP 🟣 Kotlin 🐦 Swift 🎯 Dart 🔴 Scala 📊 R 🟧 MATLAB
🌐 Web Frameworks 11 Build and ship on the modern web stack.
⚛️ React ▲ Next.js 🅰️ Angular 💚 Vue.js 🎨 HTML & CSS 🌬️ Tailwind CSS 🎸 Django 🚀 FastAPI 🕸️ GraphQL 🟩 Node.js 🍃 Spring Boot
📱 Mobile 2 Native and cross-platform app development.
💙 Flutter 📲 React Native
🧪 Testing & QA 6 Automated testing across languages and stacks.
🧪 Java Testing 🧪 C/C++ Testing 🧪 Python Testing 🚗 Automotive Testing 🧭 Selenium 🌲 Cypress
🛡️ Security 2 Defense and offense, hands-on.
🛡️ Cybersecurity 🎯 Ethical Hacking
☁️ Cloud Platforms 5 AWS, Azure, GCP and more, from first principles.
☁️ AWS ☁️ Azure ☁️ GCP ☁️ IBM Cloud 🎨 Adobe
📊 Data & Analytics 7 Pipelines, warehousing, and real-world analysis.
🛠️ Data Engineering 📈 Data Science 📊 Tableau 📗 Excel ⚡ PySpark 🏞️ ETL & Data Lake 📉 Power BI
🗄️ Databases 5 Relational, document, cache, and lakehouse.
🐘 PostgreSQL 🍃 MongoDB 🟥 Redis ❄️ Snowflake 🧱 Databricks
🤖 AI / ML / LLM 11 Models, agents, and applied ML engineering.
🤖 AI/ML 🧠 LLM Dev 📚 RAG 📱 Edge AI 🔶 Claude Training 🧰 AI Tools ➗ ML Math Foundations ✍️ Prompt Engineering 🕹️ AI Agents 🔁 MLOps 👁️ Computer Vision
🔧 Embedded Systems 5 Firmware, RTOS, and hardware-close code.
🔌 Embedded 🐧 Embedded Linux 🐍 Embedded Python ⏱️ FreeRTOS 🔧 S32K
🧭 Leadership & Management 5 Product, project, and people leadership.
📋 Product Manager 🧭 Product Lead 📅 Project Manager 🤖 AI Manager 🤝 Servant Leadership
🗣️ Professional Skills 2 Communication and workplace fluency.
🗣️ English Fluency & IELTS 🧑‍💼 Workday
🏆 Careers & Interviews 2 Interview and career prep that works.
🧩 DSA & Coding Interviews 🏗️ System Design
🔗 Process & APIs 3 Agile delivery and API design in practice.
🔄 Agile/Scrum/Kanban 🔗 REST API 🎭 Playwright
⚙️ Infrastructure & Ops 12 Containers, CI/CD, and running it in prod.
🖥️ Server Ops 🐧 Linux 📶 NodeMCU/IoT 🌍 Terraform ☸️ Kubernetes 🐳 Docker 🐙 GitHub & Git 🔁 CI/CD 🤖 Ansible 📨 Kafka 🧩 Microservices 📈 Observability
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