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Prateek Narang Sr. Software Engineer Google

Are you looking to take your Java programming skills to the next level and master the art of designing scalable, maintainable, and efficient software systems? In this course, Low Level System Design, Design Patterns & SOLID Principles, Prateek Narang, an experienced Software Engineer and Instructor and having worked with companies like Google, Scaler, Coding Minutes etc will guide you through the world of object-oriented design patterns, essential for building robust applications in real-world scenarios.

What You’ll Learn:

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Are you looking to take your Java programming skills to the next level and master the art of designing scalable, maintainable, and efficient software systems? In this course, Low Level System Design, Design Patterns & SOLID Principles, Prateek Narang, an experienced Software Engineer and Instructor and having worked with companies like Google, Scaler, Coding Minutes etc will guide you through the world of object-oriented design patterns, essential for building robust applications in real-world scenarios.

What You’ll Learn:

  • Understand the fundamental design patterns used in software engineering and how to apply them effectively in Java.

  • Explore creational, structural, and behavioral patterns, and their practical use cases.

  • Write cleaner, more efficient code by leveraging well-established design principles.

  • Learn how to improve low-level design for building scalable and maintainable applications.

  • Solve complex design problems with ease using proven design techniques.

Benefits of Doing a Design Patterns Course

  1. Improved Software Design Skills:

    • Learn how to build flexible, maintainable, and scalable software systems by applying proven design solutions.

    • Design Patterns are tried-and-tested solutions that help you handle recurring problems in software design.

  2. Enhances Problem-Solving:

    • Acquire a deeper understanding of common software design challenges and how to solve them using structured approaches.

    • Patterns provide frameworks for thinking about structural, creational, and behavioral issues in software.

  3. Better Code Readability and Maintenance:

    • Patterns lead to code that is more understandable and self-explanatory.

    • By following widely known design patterns, your codebase becomes easier for other developers to read and maintain.

  4. Code Reusability:

    • Design patterns encourage reusability, which reduces redundancy and makes your codebase more efficient and concise.

    • Patterns like Factory, Prototype, and Singleton encourage the creation of reusable objects and solutions.

  5. Align with Industry Best Practices:

    • Design patterns are a fundamental part of object-oriented design and are widely adopted by the industry. Mastering them shows you’re following industry standards.

    • In interviews and workplace challenges, design patterns often serve as best practices when architecting solutions.

  6. Better Team Collaboration:

    • Design patterns provide a shared vocabulary for discussing design problems and solutions with other developers.

    • This common language improves collaboration within teams and makes communication more effective.

  7. Preparation for System Design Interviews:

    • Many technical interviews for mid-to-senior roles focus on system design questions where knowledge of design patterns is essential.

    • Mastering the foundational concepts of design patterns is crucial for successfully handling these interviews and presenting scalable, optimized solutions.

  8. Handle Complex Systems:

    • Gain the ability to break down complex systems into smaller, manageable pieces using patterns like Composite, Facade, and Bridge.

    • Structural patterns allow you to design systems that are easier to extend and maintain.

  9. Build Scalable and Extensible Architectures:

    • By using design patterns, you can create systems that can scale with increasing complexity and adapt to changing requirements.

    • Patterns like Decorator and Strategy support adding functionality or swapping algorithms without modifying existing code.

  10. Improved Decision-Making:

    • By understanding the pros and cons of each design pattern, you'll be better equipped to make decisions about which approach suits a specific situation.

    • It enables you to evaluate different design options and pick the most optimal solution.

  11. Framework and Library Understanding:

    • Modern frameworks and libraries heavily rely on design patterns (e.g., Singleton in Spring Framework, Factory in GUI toolkits).

    • A strong grasp of design patterns helps you better understand how these frameworks work under the hood.

  12. Career Growth and Opportunities:

    • Mastery of design patterns is often expected for senior-level roles (e.g., architect, tech lead), improving your chances for career advancement.

    • It increases your confidence to tackle complex design problems and lead teams in making architectural decisions.

Design patterns are the foundation of good software design. They help you solve recurring problems and improve the structure and quality of your code. This course offers hands-on examples and real-world scenarios to help you understand and implement these patterns effectively.

Whether you’re preparing for technical interviews or aiming to write better software, this course will give you the practical skills and confidence you need to level up your design capabilities.

Enroll now

What's inside

Learning objectives

  • Understand core design patterns: learn the most widely-used design patterns in java, including creational, structural, and behavioral patterns
  • Apply solid principles: master the solid design principles to write cleaner, more maintainable, and scalable code in your software projects
  • Improve low-level design: gain the ability to design efficient, flexible, and robust object-oriented systems through low-level design practices.
  • Build scalable applications: learn how to use design patterns to create scalable and extensible java applications that can adapt to changing requirements

Syllabus

Object Oriented Programming Recap
Introduction
Course Logistics
Github Repository
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Covers creational, structural, and behavioral patterns, which provides a comprehensive understanding of design patterns applicable to Java development
Explores design patterns, which are tried-and-tested solutions that help learners handle recurring problems in software design and architecture
Teaches SOLID principles, which are essential for writing cleaner, more maintainable, and scalable code in software projects, especially in Java
Includes hands-on examples and real-world scenarios, which helps learners understand and implement design patterns effectively in Java projects
Prepares learners for technical interviews for mid-to-senior roles, where knowledge of design patterns is often essential for system design questions
Requires familiarity with object-oriented programming concepts such as classes, objects, interfaces, inheritance, and polymorphism, as covered in the recap section

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Reviews summary

Design patterns and solid principles in java

According to learners, this course provides comprehensive coverage of essential design patterns and SOLID principles, which is highly valuable for improving code quality and maintainability. Students particularly praise the practical examples and exercises that help solidify understanding and application. Many find the content directly helpful for preparing for technical interviews, especially system design questions. While the material can be challenging at times, requiring dedicated study, the instructor's expertise and clear explanations are frequently highlighted as a significant strength. The course is seen as a solid foundation for taking Java skills to the next level.
Some complex concepts need dedicated study.
"Certain patterns were quite challenging and required review."
"The course moves at a good pace but assumes some prior OOPS knowledge."
"You need to put in the work to fully grasp all the patterns."
"Some sections demanded focused attention to understand the intricacies."
Instructor is knowledgeable and explains clearly.
"Prateek is a fantastic instructor, explaining complex ideas clearly."
"The instructor's expertise in the subject matter is evident."
"His teaching style is engaging and easy to follow."
"Learned a lot from the way the instructor presented the material."
Real-world examples and exercises aid understanding.
"The coding examples were incredibly helpful in understanding how to implement the patterns."
"Applying the patterns in the exercises solidified my learning."
"I appreciated the practical, real-world scenarios discussed for each pattern."
"Hands-on exercises made the concepts much easier to grasp and apply."
Excellent resource for technical interview prep.
"This course was perfect preparation for my system design interviews."
"It gave me confidence in discussing design patterns during interviews."
"The content aligns well with typical system design interview questions."
"Definitely helped me improve my answers on design principle questions."
Covers a wide range of design patterns & SOLID principles.
"The course provided a great overview of many essential design patterns."
"I learned about various behavioral, creational, and structural patterns."
"Gives a solid foundation on SOLID principles and their practical application."
"It covers a comprehensive set of design patterns crucial for any developer."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Low Level System Design, Design Patterns & SOLID Principles with these activities:
Review Object-Oriented Programming (OOP) Concepts
Solidify your understanding of OOP principles, which are fundamental to grasping design patterns.
Show steps
  • Review the concepts of classes, objects, inheritance, and polymorphism.
  • Practice writing simple Java programs that utilize these concepts.
  • Identify real-world examples of OOP principles in action.
Review 'Clean Code: A Handbook of Agile Software Craftsmanship'
Learn how to write clean and maintainable code, which is crucial for implementing design patterns effectively.
Show steps
  • Read the book and take notes on the key principles of clean code.
  • Apply these principles to your existing Java code.
  • Refactor your code to improve its readability and maintainability.
Review 'Head First Design Patterns'
Gain a solid understanding of design patterns through a practical and engaging approach.
Show steps
  • Read the book cover to cover, paying close attention to the examples.
  • Try implementing the design patterns in Java based on the book's examples.
  • Reflect on how these patterns can be applied to your own projects.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Create a Design Pattern Cheat Sheet
Summarize the key aspects of each design pattern in a concise and easily accessible format.
Show steps
  • Choose the design patterns you want to include in your cheat sheet.
  • For each pattern, summarize its intent, structure, and participants.
  • Include a simple code example to illustrate the pattern's usage.
  • Organize the cheat sheet in a logical and easy-to-navigate manner.
Tutor other students on SOLID principles
Reinforce your understanding of SOLID principles by explaining them to others and answering their questions.
Show steps
  • Offer to tutor classmates who are struggling with SOLID principles.
  • Prepare explanations and examples to illustrate each principle.
  • Answer questions and provide feedback to help your peers understand the concepts.
Implement Design Patterns from Scratch
Reinforce your understanding of design patterns by implementing them without relying on external libraries or frameworks.
Show steps
  • Choose a design pattern from the course syllabus.
  • Write Java code to implement the pattern from scratch.
  • Test your implementation thoroughly to ensure it functions correctly.
  • Refactor your code to improve its readability and maintainability.
Design a Scalable Application Using Design Patterns
Apply your knowledge of design patterns to design a real-world application that requires scalability and maintainability.
Show steps
  • Choose a suitable application domain (e.g., e-commerce, social media).
  • Identify the key requirements and constraints of the application.
  • Design the application architecture using appropriate design patterns.
  • Implement a prototype of the application in Java.
  • Evaluate the scalability and maintainability of your design.

Career center

Learners who complete Low Level System Design, Design Patterns & SOLID Principles will develop knowledge and skills that may be useful to these careers:
Software Architect
A Software Architect is responsible for making high-level design choices and establishing technical standards, including software coding standards, tools, and platforms. This course may be useful because it provides a strong foundation in design patterns and SOLID principles, essential knowledge for architects who need to design scalable, maintainable, and efficient systems. The course content regarding creational, structural, and behavioral patterns helps one think about structural, creational, and behavioral issues in software. Learning about low-level design in particular helps a Software Architect, particularly when building scalable applications.
Java Developer
A Java Developer specializes in developing applications using the Java programming language. This course helps a Java Developer because it focuses on design patterns and SOLID principles within the Java ecosystem, providing hands-on examples and real-world scenarios. The course includes hands-on examples and real-world scenarios to help understand and implement these patterns effectively. The Java Developer will be enabled to level up their design capabilities. If you want to solve recurring problems and improve code structure and quality, take this course.
Software Engineer
A Software Engineer is involved in the design, development, testing, and evaluation of software and systems. This course may be useful because it teaches the fundamental design patterns used in software engineering and how to apply them effectively. Learning how to improve low-level design for building scalable and maintainable applications helps the Software Engineer solve complex design problems with ease. The course provides hands-on examples and real-world scenarios to help understand and implement these patterns effectively.
Application Developer
An Application Developer designs, develops, and implements software applications. This course can help because it covers fundamental design patterns and their practical use in Java, directly applicable to building robust applications. Understanding object-oriented design principles and improving low-level design, as taught in this course, allows the Application Developer to write cleaner, more efficient code and leverage well-established design techniques. Knowledge of Single Responsibility Principle (SRP) helps one to write code that is more modular.
Backend Developer
A Backend Developer focuses on server-side logic, databases, and application programming interfaces. This course helps a Backend Developer by providing the tools to write cleaner, more efficient code and build scalable applications. Design patterns encourage reusability, which reduces redundancy and can make the codebase more efficient. The Backend Developer will be better prepared to handle complex design problems and optimize solutions. Patterns like Factory, Prototype, and Singleton encourage the creation of reusable objects and solutions.
Technical Lead
A Technical Lead guides a team of developers, making key technical decisions and ensuring the team follows best practices. This course helps a Technical Lead by deepening their understanding of design patterns, enabling them to provide better architectural guidance and promote code reusability within the team. A Technical Lead who has taken this course is better prepared to lead teams in making architectural decisions. The course provides a shared vocabulary for discussing design problems and solutions.
Full-Stack Developer
A Full Stack Developer works on both front-end and back-end development. This course may be useful to Full Stack Developers because it enhances their ability to design robust and scalable systems, improving their overall competence in handling complex projects. By understanding the pros and cons of each design pattern, the Full Stack Developer will be better equipped to make design decisions about which approach suits a specific situation. The course enables evaluation of different design options to pick the most optimal solution.
Systems Architect
A Systems Architect is responsible for designing the overall structure of systems, including hardware, software, and network components. This course can help Systems Architects by offering insights into design patterns that allow them to break down complex systems into smaller, manageable pieces. Structural patterns allow the Systems Architect to design systems that are easier to extend and maintain. An understanding of creational, structural, and behavioral patterns will be useful.
Principal Engineer
A Principal Engineer is a senior-level engineer who provides technical leadership and direction within an organization. This course can help a Principal Engineer because it offers advanced knowledge of design patterns essential for building scalable and maintainable applications. Mastering design patterns shows you are following industry standards. In interviews and workplace challenges, design patterns often serve as best practices when architecting solutions, enabling the Principal Engineer to handle complex systems.
Technology Consultant
A Technology Consultant advises clients on how to use technology to meet their business needs. This course may be useful for a Technology Consultant because it provides a deeper understanding of software design principles, allowing them to recommend appropriate solutions based on industry best practices. The course content regarding improving low-level design and building scalable applications is particularly relevant. The Technology Consultant will be able to provide recommendations for software architecture.
Software Development Manager
A Software Development Manager oversees software development projects, ensuring they are completed on time and within budget. This course may be useful because it improves understanding of design patterns to aid in better project planning and code quality management. The course provides a shared vocabulary for discussing design problems and solutions with other developers. This is very helpful for a Software Development Manager whose work is collaborative.
Software Development Engineer in Test
A Software Development Engineer in Test SDET develops, maintains, and executes automated tests to ensure software quality. This course may be useful to an SDET because it provides insights into software design, helping them create more effective and targeted test strategies. Mastering the SOLID design principles to write cleaner, more maintainable, and scalable code also benefits the SDET who needs to develop scalable, automated tests. The course may enable the SDET to identify potential issues early in the development cycle.
Data Engineer
A Data Engineer designs, builds, and manages the infrastructure for data storage and processing. This course may be useful for a Data Engineer because it provides knowledge of design patterns that can be applied to building scalable and efficient data systems. Improving low-level design for building scalable and maintainable applications is also crucial. This supports adding functionality or swapping algorithms without modifying existing code. Knowledge of Single Responsibility Principle (SRP) helps one to write code that is more modular.
Database Administrator
A Database Administrator DBA is responsible for managing and maintaining databases. While this course focuses on software design patterns, it helps the DBA grasp how applications interact with databases, leading to better optimization and troubleshooting skills. The course discusses design patterns are in modern frameworks and libraries which rely on design patterns. A strong grasp of design patterns helps to better understand how these frameworks work under the hood. By understanding the interaction between application and database, the Database Administrator can make their work more efficient.
Business Analyst
A Business Analyst analyzes business needs and translates them into technical requirements. While primarily technical, this course helps the Business Analyst understand the underlying design principles of software systems, enabling them to communicate more effectively with development teams. The course improves software design skills by showing how to build flexible, maintainable, and scalable software systems. The fundamental design patterns used in software engineering will be useful.

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Low Level System Design, Design Patterns & SOLID Principles.
Provides a visually engaging and practical introduction to design patterns. It uses a brain-friendly approach to explain complex concepts, making it easier to understand and remember the patterns. It is particularly useful for those who are new to design patterns or prefer a more intuitive learning style. This book is commonly used as a textbook at academic institutions.
Emphasizes the importance of writing clean, readable, and maintainable code. It provides practical guidelines and examples for improving code quality, which is essential for effectively implementing design patterns. While not directly about design patterns, it provides the foundation for understanding how to implement them well. This book is commonly used by industry professionals.

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