Gemini's Development Practice - Commerce Backend Basics
This course focuses on building the real skills needed in actual development work. The goal is not simply to learn how to write code well, but to experience how to work well as a developer. The examples are based on the commerce domain, covering cases frequently encountered in real-world work environments, and are provided in SpringBoot & Kotlin. However, it's a course where anyone can contemplate and experience real-world development through thought-provoking content, without being dependent on any specific language or framework. Based on the practical perspective of a senior developer and former director at Toss Payments who led a large-scale payment service organization, the course is designed to help you learn the thought processes and design decisions used in actual work environments.
1,320 learners
Level Basic
Course period Unlimited
A resume guide from a CTO who has reviewed 10,000 resumes is now open!🔥
Hello! This is Gemini.
My Resume Guide from a CTO who has reviewed 10,000 resumes, featuring my unique perspective and insights, is now open!
📍Go to the Resume Guide by a CTO who has reviewed 10,000 resumes!!🔥
Course Introduction
Facts revealed by 10,000 resumes
There is no common formula for a passing resume, but
failing resumes have repeating patterns.
10,000 people have 10,000 different charms.
However, many people often fail the document screening process because of resumes that do not properly capture their unique appeal.
I hope you don't give up because of your resume.
Based on the patterns discovered while reviewing over 10,000 resumes,
I will point out the do's and don'ts, as well as the reviewer's perspective, one by one.
What you will learn
Section 1. 15 Things You Should Not Do
Most resumes are ruined not because they are lacking, but because effort was put in the wrong direction. Things included because they seemed like they would look good, show sincerity, or because leaving them out felt like a loss are actually becoming the reasons for document rejection.
In this section, we will point out the bad habits that many people unknowingly repeat one by one.
Once you learn them, there will definitely be things that make you think, "I was doing that too."
Section 2. 14 Things You Should Do
Now that you have removed what not to do, it is time to focus on how to fill the space. There is a clear difference between simply listing your history and creating a resume that actually gets read.
In this section, we will guide you through the practical steps to create a resume that catches the reviewer's eye and moves you to the next stage. A small shift in perspective can make your resume look completely different.
Section 3. The Perspective of the Document Reviewer
If you want to write a good resume, you must first understand the perspective of the person reading it. Reviewers read resumes in a different way and in much less time than you might think.
In this section, we reveal the perspective of a CTO who has reviewed 10,000 resumes. The moment you understand "how my resume appears to a reviewer," your entire perspective on writing a resume will change.
Section 4. Experiencing with Real Resumes
This is a section where you can directly verify what you've learned in theory through actual resumes. It is a time to look at the resumes of current developers together and feel which parts are lacking and which parts are good.
The difference between a good resume and a disappointing one is truly felt when you see it with your own eyes rather than just hearing an explanation. This is a time to personally experience the concepts learned earlier through real-life examples.
Section 5. Appendix
This section is for those who might still have lingering concerns after the lecture, such as, "But my situation is a bit different... what should I do in this case...?" It covers a variety of topics, including concerns about job searching in the AI era, challenges faced by newcomers, and the dilemmas of developers whose experience is limited to improving legacy systems.




