No matter how much you study technology, do you keep failing your interviews? You've memorized CS concepts, solved algorithms, and read through tech blogs. But whenever you enter the interview room, this happens: "Ah, I studied this...! Redis is... stored in... memory... um..." It's definitely in your head, but it won't come out of your mouth. In fact, according to a survey of 24 developers, 75% responded that "they knew it in their head, but couldn't speak it." 66.7% answered that they "got stuck on follow-up questions." The real problem isn't that you don't know. It's that you can't deliver what you know in the "way the interviewer wants." This lecture solves that problem.
54 learners
Level Beginner
Course period Unlimited
Reviews from Early Learners
5.0
s3ich4n
This lecture helped clear up many of the vague uncertainties I had while preparing for interviews. I was able to understand the entire process—from writing a resume and preparing for interviews to handling actual interviews and final salary negotiations—and learned what perspective to take when approaching each stage. In particular, the frequent mentions of the company's perspective allowed me to objectify myself as a candidate in the market. The viewpoint on how to find the "win-win" point for both the company and the applicant was very impressive. Thanks to this, I no longer see an interview as just a place where I am being evaluated, but as a process of confirming and aligning each other's expectations and conditions. As a result, it naturally helped me reflect on my career to see how I can appear more attractive in the job market, how to best appeal to employers, and what my future direction should be. I highly recommend this lecture not only to those preparing to change jobs but also to anyone who wants to review and assess their own career.
5.0
export
I prepared for my interviews quite hard, but I never knew why I kept failing. After watching this lecture, I finally saw exactly what I was missing. It turns out the way I had been preparing all along was completely wrong. I highly recommend this to anyone who doesn't know where to start with their interview prep!!
5.0
당연해
I was able to prepare for basic technical interview questions to some extent, but the problem was that I kept breaking down during follow-up questions. The part of this lecture that systematically establishes a structure for responding to follow-up questions was particularly practical, and the explanations are at a level that can be applied immediately in actual interviews. If you are preparing for a technical interview, this is a lecture definitely worth taking at least once.
The ability to identify the interviewer's intent and strategically respond to in-depth follow-up questions
The ability to construct differentiated answers that lead to success by highlighting your unique strengths.
Advanced practical negotiation and response strategies covering the entire interview process, from self-introductions to salary negotiations.
The ability to self-diagnose the reasons for failing an interview
If you are looking for a technical interview lecture where you just memorize technical knowledge, you have come to the 'wrong' place
We present the criteria interviewers use to decide whether to pass or fail a candidate, rather than just technical knowledge.
From the hidden intent behind simple, surface-level questions to difficult follow-up questions! We will teach you the actual structure of how to answer.
We will even provide you with communication training methods to properly convey what you know, all in one go.
You aren't still thinking this way, are you?
Can't I pass the technical interview if I just work hard on memorizing CS knowledge?
If you have a lot of practical experience, wouldn't you be able to explain things naturally during the interview?
If I memorize all the famous technical interview prep repositories, won't I be able to answer any question?
<Source: Excerpt from JoongAng Economic Daily article>
How on earth can one successfully continue a career as a developer?
There is something more important than CS knowledge. It is properly understanding the passing frame that makes the interviewer want to hire you.
My resume and portfolio pass,
but I keep failing at the technical interview stage.
✔ It's a matter of delivery, not knowledge. It can be solved once you understand the answer structure that sticks in the interviewer's ears.
I studied CS so hard,
but my mental state crumbles at a single follow-up question
✔ follow-up question response structure in advance, you will not be shaken no matter what question is asked.
I'm confident in my practical skills,
but I just can't explain myself in interviews
✔ The answer frame that interviewers want, you can properly convey what you know.
Me, who has the technical knowledge but stumbles only during actual interviews
Me, whose entire preparation goes down the drain because of a single follow-up question
I know a lot, but I struggle to organize my thoughts into words.
You will gain an answering structure that remains unshaken no matter what question is asked.
By mastering how to handle follow-up questions, you will be able to turn them into opportunities for differentiation.
You will gain the communication and delivery skills that make interviewers want to work with you.
If you're thinking this, I believe you are a very smart student in the top 10%👍
If you still feel that I am an unverified person after reading my introduction, please do not take this course under any circumstances
Developer H
5 Million MAU Active Service Backend Developer
Developer 1:1 Premium Job Consulting 100% Conducted (+3years)
Wanted Pre-onboarding Challenge Lecture (Resume Writing) conducted
Fast Campus Career Mentor Activity
Conducted a lecture on resume writing at Modulabs
Operating the Developer Survival Secret Book Newsletter
These are actual successful application results based on the first half of 2024 to 2026.
If this were a method only I could use, I wouldn't have even attempted to create a lecture out of it.
Please be sure to check the actual results and reviews from my students.
I still receive many requests from various bootcamp companies for technical interview preparation lectures and mock interview consulting.
I have created this course with the hope that it will be helpful to even more people.
These are not just words; I am sharing proven content based on actual results demonstrated in the recruitment market. This is not simply about "model answers," but rather contains the exact answer structures that keep interviewers focused until the end, along with methods to handle various variables in actual interviews.
This course is not about teaching CS knowledge and telling you to memorize it.
I will teach you the actual passing formula that allows you to respond to any question in a real interview on your own. Stop wasting your time memorizing entire technical interview repositories.
I hate vague, abstract talk more than anything. From Section 1 (Fundamentals) to Section 4 (Anatomy of Real Developer Interviews), I have packed this with only practical content that you can use immediately in the field.
"Can I really prepare for a technical interview with a VOD lecture?"
"Will watching this actually help me pass?"
It's perfectly natural to have these concerns. I think the same way whenever I spend my own money on something.
That's why I've prepared this to clearly address those doubts.
Q. I lack technical knowledge; will this lecture still be helpful?
This course does not teach CS knowledge itself. However, based on your own experiences, it teaches the structure of how to answer in the way interviewers want. In this process, I will teach you the method of learning which knowledge you need to acquire and to what depth.
To put it simply, I will teach you how to fish, rather than giving you a fish.
Q. It's a VOD without real-time feedback; will it still be effective?
Yes, it is effective. The core of this lecture is not about feedback, but about internalizing the framework itself for passing technical interviews. Once you understand the structure of how to pass, you will be able to improve your own answers yourself. That is true skill.
Q. Is it suitable for both new graduates and experienced professionals?
Yes, it is possible. This course is not just about tips tailored to a specific job or company. It teaches the fundamental principles of how interviewers select candidates. Once you understand these principles, they are applicable to all job-seeking situations, whether you are a new graduate or an experienced professional.
Q. How is this different from other technical interview courses?
Try writing an answer yourself. Most technical interview lectures follow a "this answer for this question" format. This lecture teaches the structure of why interviewers ask specific questions and what kind of answers lead to passing. It creates a shift in mindset, not just memorization.
Q. Is Developer H qualified to teach technical interviews?
It is natural to have doubts. That is why I am disclosing my background and achievements as they are.
Actual passing experience at top-tier companies such as Toss, Wrtn, and Remember
Active as a career mentor at Wanted, Fast Campus, Modulabs, SeSAC (Seoul Software Academy), etc.
Over 3 years of experience in 1:1 career consulting for developers
As a current backend developer, I have included only the proven know-how that I actually use in the field.
It is recommended to have your resume ready in advance. If you do not have a resume prepared, please refer to here.
This lecture covers the technical interview passing frame and methods to improve delivery.
Please note that CS knowledge itself is not taught..
This is a video-based course.
Lecture materials (Notion) corresponding to the original content of the video lecture are provided.
Who is this course right for?
A junior developer aiming to grow into a mid-level developer
Mid-level developers who want to upgrade their technical interview skills to the next level for a career move or promotion
Developers who "study but can't seem to speak"
The developer who "doesn't know why they failed"
Need to know before starting?
Please prepare your resume in advance!
Career Verified
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Learners
91
Reviews
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Answers
5.0
Rating
2
Courses
Hello!
I am Developer H, currently working as a professional developer while engaging in various activities.
✅ Expert mentor for developer employment and career changes
- Backend Mentor for Hackathon hosted by LIKE LION (2025.02)
- Wanted Pre-onboarding Challenge Mentor (2023.05 ~ )
- Fast Campus Career Mentor (2023.08 ~ )
- Operator of Kmong All-in-One Developer Employment Consulting (2023.07 ~ )
- Zero-Base Mentor (2024.03 ~ 2024.07)
- IT Mentor for Spec-up with 2 million members (2023.11 ~ 2024.02)
- IT Mentor for Winspec with 160,000 members (2023.07 ~ 2023.11)
✅ 8th-year active startup developer
- Current backend developer for a service with 5 million users
- Core development experience in a total of 9 commercial services
- Experience launching solo app services
- Experience as a development team lead
All
20 lectures ∙ (5hr 6min)
All
11 reviews
5.0
11 reviews
Reviews 26
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Average Rating 5.0
5
It’s not vague; it’s clear. You can understand how to put it into practice. I think I’ve found the answer to the communication issue that I struggled with the most. Through the final negotiation section, I think this is a course that can help anyone going into an interview—not just with technical interviews.
I’m glad to hear it was helpful! I think there are many courses that teach you what kinds of answers to give in technical interviews. However, I believe this is the only course that teaches you how to communicate those answers and how much that communication ability actually affects the hiring process :) The job market is very challenging right now! I hope you continue preparing with this course and achieve great results.
Reviews 1
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Average Rating 5.0
5
I felt hopeless after failing multiple technical interviews. It was only after taking this course that I understood which parts of my performance were giving interviewers a bad impression. I highly recommend this to anyone who keeps repeating the same mistakes without knowing why they aren't succeeding.
Thank you for the great review :) Simply answering technical questions well isn't everything in an interview! It is very important to objectively understand what kind of impression you give :) I hope you truly gain that insight through the lecture.
Reviews 3
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Average Rating 4.0
5
I had only prepared based on my technical skills, but through this lecture, I learned that the elements evaluated in an actual interview are much more diverse. The part explaining what kind of candidate is highly rated from an interviewer's perspective was particularly impressive. This lecture will be helpful for those who want to prepare for technical interviews strategically.
As you mentioned, you will go through many verification processes in an actual interview! Through this lecture, I hope you have learned the verification intentions and strategies for what interviewers look for closely. Thank you :)
Reviews 1
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Average Rating 5.0
Edited
5
I started taking this course with a sense of excitement because it was taught by the mentor who actually mentored me when I was preparing for my first job change as a developer. At the time, the mentoring helped me establish a direction for my job search and provided me with so much valuable guidance. As I went through this course, I realized that the key lessons and useful tips I had learned back then were packed into it really thoroughly. Personally, I felt that “the essence of the mentoring had been turned into a course.”ㅎㅎ Technical interviews often feel vague and intimidating, but the course explains question patterns, how to respond, and even how deeply follow-up questions might go. Because of that, I feel like I’ll be able to approach interviews with much more confidence. The cartoon examples for different situations and response types were also so relatable that I was able to stay even more focused throughout the course. I also used to panic when I got stuck during an interview and repeatedly say that I was sorry. Through this course, I was reminded once again how important it is to fix that habit. In a way, this has been the hardest thing for me to change, so learning specific ways to respond was especially helpful. I’m currently preparing for another job change, updating my portfolio, and starting to apply for positions again. Since what I learned through the mentoring has now been organized so clearly in this course, I’m preparing with a much greater sense of confidence and reassurance. I’ll do my best to make it all the way through this job change with Developer H’s help as well :D
What a delightful comment! AI is having a significant impact on the developer job market. I think that’s precisely why we need to get back to the basics. It’s not easy to change the hiring process, after all! That makes it all the more important to know exactly what you’ve done and to understand what you’re doing. The follow-up questions will go even deeper! Let’s do our best together on this job change as well! I’m sure you’ll achieve a great result :)
Reviews 2
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Average Rating 5.0
Edited
5
I used to get stuck on follow-up questions often, but this helped me clearly understand how to respond. It was very helpful because it didn't just make me memorize answers, but rather helped me understand the actual structure of how follow-up questions are generated. I highly recommend this to anyone preparing for real interviews.
Handling follow-up questions is indeed a very tricky part of technical interviews! There are no shortcuts for this; it's something you must handle by learning the fundamentals thoroughly :) The content provided in the lecture is the most effective strategy relative to the time invested, so I hope you use it consistently to achieve great results! Thank you :)
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