Learn HLD and LLD Online: Free Course with AI Tutor & Certificate
Scaling software without breaking it is tough. This free low level design course teaches you how to plan system architecture from top to bottom. In about 1 hour across 32 video lessons, you'll learn to apply design patterns, separate components properly, and build maintainable applications that can handle real traffic.
What you'll learn in this HLD and LLD course
Five concrete outcomes you'll walk away with, each mapped to modules in the curriculum below.
Understand the difference between Low-Level Design (LLD) and High-Level Design (HLD).
Apply key principles and concepts in LLD and HLD.
Design scalable and maintainable systems using HLD principles.
Design detailed modules and components using LLD principles.
Implement design patterns in LLD and HLD for creating efficient and robust software systems.
HLD and LLD course syllabus
01 Introduction to HLD and LLD
- Understanding the Basics
- Key Differences between HLD and LLD
- Importance of HLD and LLD in Software Development
- Benefits of Proper HLD and LLD
02 HLD (High-Level Design)
- Overview of HLD
- Designing the Overall System Structure
- Defining System Components and Interactions
- Considerations for Scalability and Performance in HLD
03 LLD (Low-Level Design)
- Overview of LLD
- Designing User Interface and User Experience
- Database Design and Management in LLD
- Algorithm Design and Implementation in LLD
04 Design Patterns in HLD and LLD
- Introduction to Design Patterns
- Creational Design Patterns
- Structural Design Patterns
- Behavioral Design Patterns
05 Best Practices for HLD and LLD
- Documentation and Communication in Design
- Testing and Validation of Design
- Code Reusability and Maintainability
- Performance Optimization Techniques
06 Case Studies and Real-World Examples
- Case Study 1: Designing a Social Media Platform
- Case Study 2: Designing an E-commerce Website
- Case Study 3: Designing a Banking System
- Case Study 4: Designing a Mobile Application
07 Future Trends in HLD and LLD
- Emerging Technologies and their Impact on Design
- Cloud Computing and Design Considerations
- Internet of Things (IoT) and Design Challenges
- Artificial Intelligence and Design Automation
08 Recap and Conclusion
- Summary of Key Concepts
- Importance of Continuous Learning in Design
- Resources for Further Exploration
- Q&A Session and Final Thoughts
Real-world projects you'll work on
Practice the exact kind of work HLD and LLD professionals do on the job.
Revamping the System Architecture: Transforming a Global MNC's Legacy System for Scalability and Maintainability
Designing a Secure and Interoperable Integration Framework for a Leading Startup's Next-Generation Product
Implementing Dependency Injection and IoC Containers to Enhance Testability and Maintainability in a Top Global MNC's Software Solution
Applying Advanced Design Patterns for Performance Optimization in a Cutting-Edge Startup's High-Traffic Application
Skills you'll gain
Add these to your LinkedIn profile and resume the day you finish.
Who should take this HLD and LLD course?
And exactly what you need before starting (spoiler: almost nothing).
This course is for
- Software developers looking to transition into senior engineering roles by mastering system architecture.
- Computer science students preparing for technical interviews at top tech companies in India.
- Backend engineers who want to build scalable applications that can handle high user traffic.
- Tech leads needing a structured refresher on design patterns and best practices.
Prerequisites
- Learners should have a basic understanding of programming concepts and object-oriented design before starting.
- Familiarity with at least one programming language like Java, Python, or C++ is helpful.
- No prior experience with enterprise system architecture is required.
How learning works on LearnTube
The structure of a bootcamp, the price of free.
AI curates your path
Our AI picks the top 1% of video content for each topic and arranges it into a structured, goal-based curriculum. No more tutorial roulette.
Learn, then get quizzed
After every lesson, your AI tutor asks you a question and gives personalised feedback on your answer, so gaps get fixed immediately.
Finish with proof
Complete the course, build the capstone project, and claim a certificate recognised by 900+ hiring partners.
A complete HLD and LLD course: free, structured and job-focused
Writing code is only half the battle when building software; the real challenge is designing a structure that won't collapse under pressure. This hld and lld full course helps you master system architecture before you write a single line of code. We start with Understanding the Basics and move through 8 focused modules. You'll explore HLD (High-Level Design) to map out broad system interactions, then transition into LLD (Low-Level Design) to define specific classes, databases, and interfaces. Along the way, we cover Design Patterns in HLD and LLD, Best Practices for HLD and LLD, Case Studies and Real-World Examples, and Future Trends in HLD and LLD.
Theory only takes you so far, so you'll apply these concepts through hands-on projects. You will tackle Revamping the System Architecture: Transforming a Global MNC's Legacy System for Scalability and Maintainability. Next, you will focus on Designing a Secure and Interoperable Integration Framework for a Leading Startup's Next-Generation Product. Finally, you will practice Implementing Dependency Injection and IoC Containers to Enhance Testability and Maintainability in a Top Global MNC's Software Solution. By the end, you will know exactly how to structure efficient software systems.
LearnTube makes this high level system design course highly interactive. Instead of sitting through boring lectures, you get curated YouTube videos paired with an AI tutor that tests your knowledge. Every lesson is followed by a quick quiz to ensure you actually understand the material. Learning is completely free, and you can add a paid certificate once you finish the 32 video lessons to show hiring managers your new skills.
Jobs you can target after learning HLD and LLD
HLD and LLD is a gateway skill for some of the fastest-growing roles in tech.
Designs and implements complex software modules using structural best practices.
Builds and maintains the server-side logic and database architecture for web applications.
Maps out the overarching technology stack and infrastructure for large-scale enterprise products.
Guides engineering teams in applying design patterns and ensuring code maintainability.
Typical entry-level salary ranges in India as of September 2026. Actual compensation varies by city, company and experience.
Earn a HLD and LLD certificate employers recognise
Finish the course and claim a certificate you can share anywhere.
- Learn 100% free: every lesson, quiz and the AI tutor cost nothing
- Claim your certificate when you complete the course (an optional paid add-on)
- Recognised by 900+ hiring partners across India
- One click to share on LinkedIn and add to your resume
Why learners choose LearnTube
Real reviews from Google. You learn free, you get assessed free, and you pay only if you want the certificate.
Though I have 11 years of experience as an HRBP, the course helped me refresh my knowledge and gave me insights into new trends in the market. The modules were clear and easy to understand, and the quizzes were well designed. I have added the certificate to my LinkedIn profile.
I had a lot of doubts while learning, but the AI chatbot answered them in detail with simple summaries. The videos on the platform saved me a lot of time as I didn't have to search YouTube and watch random content.
Just earned my certificate in HR Management from LearnTube.ai! The platform is user-friendly and the assessment was a great way to validate my knowledge. Feeling proud of this accomplishment!
I enrolled in a LearnTube personalized course to get into a Data Analytics role. It helped me learn SQL in depth and gave me hands-on experience with Power BI. I attached the LearnTube certificate to my CV, it added credibility to my profile, and I'm currently in the interview process.
The interface is user-friendly and intuitive, making it easy to navigate the course. I encountered no errors during my time using the platform, which was a refreshing change from other online learning platforms.
Just cleared the Business Analyst assessment and got certified! Loved how the course simplifies big concepts like data-driven decision making into short, practical lessons. The automated quizzes kept me on track the whole time. Perfect boost for my resume!
The certificate gave me a real edge during my B.Tech. By the time I graduated, I had skills that set me apart from my peers, and the certification opened up more job opportunities. It gave me the confidence to stand out during interviews.
I manage many software projects as a General Manager and was looking for a good certification program to stay competitive. After researching many programs, I chose LearnTube and it was much better than I expected. The material is well-organized and practical, and what I liked most is the lifetime access.
Frequently asked questions
Everything learners ask before starting this HLD and LLD course.
How is this different from watching plain YouTube tutorials?
Plain videos lack structure and testing. This hld and lld course curates the best lessons into 8 logical modules and adds an AI tutor. You'll take a quiz after every single video to actively test your new architecture skills.
What tools or software do I need installed?
You don't need any special software to start learning. You can complete the video lessons and AI quizzes directly in your browser. For the hands-on projects, any standard code editor like VS Code or IntelliJ will work perfectly.
Do I need prior experience to take this class?
Yes, you should know basic programming and object-oriented principles first. This is an intermediate subject, so understanding how classes and functions work will help you grasp the high level design tutorial concepts much faster.
What job roles can I get after learning system design?
Mastering these skills prepares you for senior engineering and backend development roles. Companies look for developers who understand scalability, which often leads to positions like SDE II or Technical Lead earning between ₹12-20 LPA in India.
Is this a self-paced learning program?
Yes, the entire curriculum is completely self-paced. You can watch the 32 video lessons and complete the four practical projects on your own schedule. It takes about one hour of video watch time to finish the core material.
Can I get an hld lld certification upon completion?
Yes. While the learning material is entirely free, you can purchase an optional certificate once you finish all the modules. This verified document is great for adding to your resume or LinkedIn profile to prove your architectural knowledge.
Are there any practical projects included?
Yes, you will complete four distinct hands-on projects. These include revamping a legacy system for a global MNC and designing a secure integration framework, ensuring you can actually apply low level design principles to real software problems.
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