More Developers, Career Guide

This course develops a REST API that satisfies Self-Descriptive Message and HATEOAS (Hypermedia as the engine of application state) using various Spring technologies.

If you are a student or developer who is using or studying the Java programming language, you will learn various methods of testing your applications that you must know.

In this course, you will learn how to develop a web application using various Java-based open source technologies including Spring, JPA, and Thymeleaf, which are actually operating services. If you study this course enough, you will be able to create your own web service or create a portfolio that will help you get a job.

Understand the operating principles and structure of Spring Security and learn how to set up authentication and authorization features required for web applications by utilizing the various functions provided by Spring Security.

Learn how to easily understand the principles and various functions of Spring Boot through coding and use them more actively.

This course is for those who are new to the Spring framework. By looking at the code of the official Spring example project called Spring - PetClinic, you can easily and quickly understand the following core features of Spring.

Learn “Effective Java,” the ultimate Java learning course, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

Learn “Effective Java,” the ultimate Java learning course, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

Learn “Effective Java,” the ultimate Java learning guide, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

Refactoring is one of the basic skills that a software engineer should have. This course is designed to explain and practice various code smells and refactoring techniques in a more practical way using IntelliJ and Java.

Knowing design patterns will make it easier to learn not only Spring but also many other technologies and programming languages. It will also help you develop more flexible and reusable object-oriented software.

Developer interview taught directly by a senior software engineer who went through Naver and Amazon and is currently at Microsoft!! This lecture focuses on the "developer interview" rather than the "coding interview". When hiring a developer or, conversely, when changing jobs or seeking employment, the "coding interview" is never the only thing that determines success or failure. Through this lecture, I hope you will learn more about how to hire a developer or prepare for a change or seeking employment.

This lecture is an extension of the "Spring Boot Concepts and Utilization" lecture and covers the Spring Boot updates that have been made over the past two years. Check out the new features and changes from Spring Boot 2.1 to 2.4 and update to the latest version of Spring Boot.

The features added to Java 8 are widely used in APIs provided by Java as well as third-party libraries and frameworks such as Spring. If you are a Java developer in this era, you must know them. Make them your own technology easily and quickly through this lecture.

Have you ever wondered "how" the many Java libraries and frameworks you use provide this functionality? In this course, learn how to manipulate various codes or objects provided by Java and take your Java skills to the next level.

This course covers Spring Web MVC, a Java Servlet-based MVC framework. For a more efficient learning experience, please take the Spring Framework Core Technologies course.

By looking at the code of the official Spring example project called Spring-PetClinic, you can easily and quickly understand the following core features of Spring.

This course uses Spring Boot and teaches you the core Spring technologies. Therefore, this is a useful Spring course for developers or students who are using Spring Boot-based projects.

Learn about Spring Data JPA, which provides several features to make using JPA (Java Persistence API) easier.

Pass rate 1% -> 66%, 2nd year salary achieved 6,000 ☑️ I've compiled all the know-how that transformed a resume that was rejected over 300 times into one that 'always passes' into a single book. Do you feel like you're falling behind even though you're working as hard as everyone else? If you're having trouble even passing document screening despite taking countless courses and building your specs, there's a high chance you're misunderstanding the 'rules of the game.' This book will teach you the 'rules of the winning game' itself, so that your efforts lead to the results you deserve.

This talk will cover how a bootcamp graduate went from winning hackathons, creating courses, and mentoring new hires all in one year.

If you're okay living your whole life doing what others tell you, you don't have to read this book. Please go back.

Most of us grow up learning that the 'stable path' is the right answer. But we never learn why that choice is designed to make money slowly, or why hard work often doesn't yield good results. This course first deconstructs the mindset structures that prevent you from making money, and provides criteria that allow you to test market responses and try again even after failure. This course is designed to be a starting point for those who are stuck not knowing what to do, and those who are exhausted from just preparing, to change their thinking and rebuild their decision-making criteria.

Should new recruits only do well what their team leader or senior colleagues tell them to?! Now, no! This lecture is necessary for organizations that want new recruits who understand 'work' and 'results' from a business perspective, and for rookie office workers who want to grow into leaders recognized by their team and company! If you are a new recruit who wants to work skillfully like a senior and lead tasks and get ahead like a CEO, then 'Career Branding'! A new recruit competency improvement course that brings about changes in the thoughts and actions of those just starting their careers!

No longer living as “me, myself” in “other people’s subjectivity”. Survive as “me”! Get rid of socially fixed frames and bubbles, and learn the know + how to develop and design your own experience and career to create a personal brand.

We share insights and challenges encountered while growing into a senior developer. Issues are summarized by referencing cases from Korea and the U.S.

A practical publishing strategy revealed by an author and editor. From publishing proposal to contract and monetization—how to change your career with one print book.

This is an online course where you can learn essential content for certification, from basic concepts of information security to the latest security issues. With theory reflecting the latest exam trends and practical mock tests, you can efficiently prepare for the exam, and it's structured so that even those new to information security can easily follow along.

I have been writing a year-end review since 2017. And I have been writing a review whenever I have a problem. I would like to share what I have learned from writing a review for 7 years.

The 10 Steps to Self-Branding doesn't tell you to 'take action right now!' It gives you insight into how to turn a frustrating and daunting reality into valuable time for the future! You can gain a sense of how to grow deeply and build authenticity in your own field, not the goals and standards set by the world.

This is a live video of Jung Heung-soo from Heung Button, which was broadcasted on January 23 as part of the <2025 Know Yourself Know Your Enemy Relay Live Campaign>.

We will inform you of a career expansion roadmap to grow as a web planner in Korea and reach the top as a next-generation SI web planning PL.

Based on learning fundamental concepts of programming and Python, we solve mathematical problems using Python. (Solutions and roots of equations, drawing graphs)

This is the easiest introductory course for those new to information security. You can get a feel for real-world tasks by experiencing the five core roles: planning, development, operations, assessment, and monitoring. Start building your own career roadmap for employment or a career transition.

This is a practical training program designed to systematically learn the core principles and practical skills of document writing and report writing that can be directly applied in corporate work settings. You can comprehensively enhance your document capabilities needed for workplace collaboration, communication, and decision-making by learning various topics including clear and logical writing, highly readable document composition, utilization of data and visual materials, persuasive report and email writing, and rapid and accurate communication through real-world examples.

This is a video of the meetup that took place at 7pm on January 31st.

- I am a Research Engineer/AI PM running a 4-year-old AI startup. - This video is a lecture for those who want to start studying artificial intelligence "now" or in "2026". - Looking at college students, I see many who have no idea how to get started with artificial intelligence. - I hope that after watching this lecture, you'll be able to start studying artificial intelligence. - For reference, this lecture is not about "using AI in my work" or "getting started with monetization methods using GPT". - This is a video about how students, graduate students, or developers can get started when they want to study artificial intelligence.