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I have created an introductory AWS course that is easy to understand even for non-majors and can be applied immediately in practice!

I have created an 'AWS Intermediate/Practical' course that is easy to understand even for non-majors and can be applied immediately in the field!

This course aims to build the complete understanding of Amazon Virtual Private Cloud (VPC) and Networking from grounds up where you will understand the AWS networking concepts to the depth not just theorotically but by actually performing hands-on exercises for all the networking components. This course will take your networking knowledge and experience to a level where you can confidently design and implement networking components on your own. And believe me, it's one of the most important skill to have to be successful in your AWS career.

An introductory course tailored for beginners that systematically teaches you how to build AWS core services and infrastructure! You can naturally learn the basics of the cloud and how to use AWS through hands-on practice.

With a good guide, the black terminal window is no longer something to fear. I’ll be your reliable companion as you journey through the world of Linux. ● Beginners with no technical background ● Students majoring in computer engineering or computer science ● Developers who need foundational training ● Those who are intimidated by a black window with white text ● Those who feel overwhelmed about launching a real service Practice environment: WSL / Virtualbox / Ubuntu 24.04 / Rocky 9 An instructor with 26 years of experience will guide you at a beginner-friendly level. One hour a day for one week, and you’ll start to see Linux.

It is difficult to complete a classification service using only AI API calls. Based on practical experience, I guide you through everything from implementation to deployment.

No more 'Question - Answer - Read-through' explanations! We explain all the knowledge related to how to solve AWS SAA certification exam questions!

Delving into Django's core concepts and key features in detail, from API development methods using DRF to deployment leveraging AWS, this covers everything about Django web development.

This is a process for completing IoT products without complex coding, using the Vibe Coding methodology powered by AI agents. You can experience the entire product development cycle in a condensed format—from embedded hardware control and AI vision recognition to PCB design, 3D printing, and web/app service development—allowing you to launch functional, commercial-grade IoT devices.

Understanding Manufacturing Security Through Real-World Cases in the Age of AI is a course designed to help learners easily understand the increasingly important topic of OT security in smart factories and AI-based manufacturing environments through real-world cases. This course explains key concepts frequently encountered in manufacturing environments, including OT, ICS, PLC, SCADA, HMI, and MES, and compares the differences between IT security and OT security. It also examines, through real-world cases, security threats that may occur in manufacturing environments, such as ransomware, remote access abuse, partner account compromise, production line shutdowns, equipment malfunctions, and data tampering. Through this course, learners can understand the basic structure of OT security in manufacturing and identify the security perspectives needed to protect production equipment and industrial control systems. They can also establish a common foundation for learning subsequent manufacturing security courses by industry.

Learn cloud infrastructure automation technology using AWS and Terraform, and practice efficient infrastructure management and deployment. Manage AWS resources as code through Terraform, and learn how to deploy consistent infrastructure across various environments.

Starting from an empty VPC, you will build a three-tier architecture directly in the AWS Console by configuring subnets, routing, security groups, RDS, EC2, ALB, Route 53, and ACM. You will manually create a WordPress blog with HTTPS enabled on a real domain, gaining a solid understanding of network architecture and security principles while developing practical troubleshooting skills.

Master AWS networking completely! Learn VPC, subnet, routing, and security with a focus on practical application, and design secure and scalable cloud network architectures. Complete the core skills that every working engineer must know in a short period of time!

This course covers how to actually publish the websites I've created to the world. From basic hosting using Dothome to hosting on git and cloud deployment through AWS, it's structured so you can easily follow along while experiencing hosting step by step. Rather than just stopping at writing code, you can build confidence as a web developer through various hosting experiences and actually operate real services.

Based on the experience of wondering how facial recognition works in offline environments on-site, this course will guide you through building the basic structure of a facial recognition-based access and attendance management system using React + Electron and Python's FastAPI-based DeepFace. Rather than focusing on perfection, we focus on understanding the operating principles and laying the foundation for you to expand into your own personal projects.

Understanding network configurations is extremely important when building applications on AWS. In this course, we will clearly explain the concepts and actual construction methods of basic network configurations in AWS.

This training was created to first help privacy officers recognize and understand the requirements for establishing a proactive protection system, as previously announced through the June 2026 Personal Information Protection Act and the Personal Information Protection Commission's (PIPC) compliance inspections. It aims to help companies review their current status, identify areas for improvement, and establish future action plans. Based on over 8 years of experience in providing advisory and consulting services for personal credit information protection, this course is designed to support strategy formulation and the preparation of reporting documents for executive management.

Document writing is the most challenging part for both aspiring and current developers! Create your own portfolio by looking at how successful candidates write their documents! We speak based only on documents that actually passed!

This course is an introductory lecture prepared for those who are new to Terraform, an infrastructure automation tool. Instead of repeatedly performing manual configurations in cloud environments, you can learn how to easily and quickly build and manage infrastructure using code. It is specifically designed with easy explanations and hands-on exercises that even non-majors can follow, so that beginners who are encountering the concept of IaC for the first time can understand it.

AI is no longer a choice—it’s a matter of survival. Cut development time from 3 days to 30 minutes, delegate repetitive tasks to AI, and focus on solving more important problems. With AI-native development techniques you can apply immediately in real-world work—not just theory—we’ll show you a surefire way to be recognized at your company as a “developer who excels at AI.”