Introduction to Redis for Beginners and Practical Application (Query Performance Optimization Edition)

I have created a course titled 'Introduction to Redis/Practical Application (Query Performance Optimization Edition)' that is easy for non-majors to understand and can be applied immediately in practice!

(4.8) 161 reviews

1,500 learners

Level Basic

Course period Unlimited

Redis
Redis
performance-tuning
performance-tuning
NoSQL
NoSQL
query-tuning
query-tuning
Redis
Redis
performance-tuning
performance-tuning
NoSQL
NoSQL
query-tuning
query-tuning

Reviews from Early Learners

Reviews from Early Learners

4.8

5.0

보키

100% enrolled

Thanks to Jaeseong, I learned how to use AWS + Docker + Redis(ElastiCache)! Now I'm going to learn more about Redis mode, failover, Transaction, pub/sub, etc. Thank you~!!

5.0

식이

100% enrolled

I was able to quickly complete the course thanks to the easy-to-understand explanation of the core concepts of Redis and its application to projects. Thank you.

5.0

Jay Lee

30% enrolled

I'm also looking forward to and enjoying the Redis lecture; you really catch the core points well!

What you will gain after the course

  • Query performance optimization methods that you can apply to your own projects

  • Common ways to use Redis in practice

  • Redis Basic Usage

  • How to utilize Redis's caching features

  • Performance comparison using load testing


Notice (25.08.11.)

Hello! This is Jaesung Park from JSCODE :)

After taking the Redis course, from the perspective of some students,

It seems there are often cases where people are disappointed because the content differs from what they expected 😭

In the hope that fewer people will be disappointed by the course,

To help you make a wise purchase, before you buy the lecture,

I have summarized and posted some points that would be good for you to check!


  1. Structure of this course
    This course is not an in-depth exploration of Redis concepts. It focuses primarily on the basic usage of Redis and how to apply and deploy it in actual projects. It also includes a process of verifying whether performance has actually improved through load testing after applying Redis.

    Since the content you expect might not be included in this course, I highly recommend checking the curriculum before purchasing!

    (Next time, I will create an additional course focused on Redis so that you can learn in-depth concepts and applications of Redis! 😭😭)



  2. Lecture Duration


    This course is relatively short, with a 3-hour duration, compared to other courses I have created.



  3. Price Adjustment
    I believe the price for this course has been set too high relative to its length. Therefore, for those purchasing from now on, please use the link below to receive a 30% discount coupon!

    https://inf.run/7RiuP


I will put more effort into the upcoming lectures,

lectures that can satisfy as many students as possible

I will do my best to create it!


Thank you.

Sincerely, Jaesung Park from JSCODE.




🤬 Dammit, I can't do this anymore!

My name is Jaeseong Park, and I started my career in development as a non-major, served as a CTO at several companies, and am currently active as an educator. I also had a time when I started development as a non-major and studied Redis.

When I first tried to study Redis, I felt overwhelmed and didn't know where to start. Most books and lectures only explained Redis data structures (string, list, hash, set, sorted set, etc.) and endlessly listed countless commands (SET, GET, EXISTS, DEL, HSET, etc.). Because of that, the question "When will I ever learn all of this, and how do I actually use it in practice?" never left my mind.

Somehow, I decided to improve performance using Redis and went ahead with its implementation. It certainly felt faster, but I was left wondering how to test exactly how much faster it had become and whether I had implemented it correctly. As a result, I lost confidence in actually applying it to real-world projects.

Since I also had times when I experienced such anxiety and difficulties, I decided to create a Redis course that even non-majors can immediately apply in practice.

✨ 4 Key Points I Focused on While Creating This Course

Once you have learned the concepts, you need to experience applying Redis in practice using those concepts. That's why I have structured the course so that you can directly experience the most frequently used Redis use cases in the industry.

I have selected only the core concepts essential for improving lookup performance using Redis. Knowing just a few frequently used concepts is enough to master Redis and enhance performance. I won't teach you unnecessary theories. By learning this way, you can pick it up very quickly and apply it to real-world projects immediately.

I believed that if you couldn't apply what you learned in the real world even after finishing the course, it would be a flawed lecture. I tried to structure it as a practical course that can be applied immediately to real-world tasks, rather than an academic approach of studying theory in depth.

I won't just explain the theory; I will show you every step of the performance improvement process using Redis through practical examples. By demonstrating this improvement process, you can easily learn how Redis is utilized in real-world scenarios to enhance performance.

👍 This course is perfect for:

Those who are having difficulty learning
Redis by watching YouTube or reading blogs

Those who are non-majors and
slow to understand difficult
concepts and terminology

Those who want to introduce Redis in a real-world work environment to
improve performance

🙊 What will you achieve after completing this course?

You will be able to grasp the basic concepts of Redis. Furthermore, you will learn how to optimize query performance using Redis in practice..

🍡 Preview

'Strategies used when caching data (Cache Aside, Write Around)' during class


'Comparing Throughput Before and After Applying Redis' from the lesson

'Setting up AWS ElastiCache' during class

Note

This course is conducted under the assumption that you have a basic knowledge of Spring Boot. Therefore, I recommend taking this course after studying basic Spring Boot. However, even if you are not very familiar with Spring Boot, you will be able to learn effectively by utilizing the 'Comment Study Method' that I will explain in the lecture. If you encounter any parts you don't understand while studying, please ask questions immediately using the Q&A board or the 1:1 open chat room😊

🚨 Be sure to check who the person providing the education is!

If you meet the wrong doctor, you may face death because your illness cannot be cured at that moment. However, death ends with the pain of that moment. But if you meet the wrong teacher and receive the wrong education, you will suffer throughout your entire life.

Due to poor education, you may end up at a company you don't want, receive a lower salary than expected, and suffer for the rest of your life as a result. Not only that, but the poor education you received can even be passed down to your children.

I believe that education can change a person's life in a truly positive way, but on the other hand, it can also completely ruin a person's life. That is why I believe education carries such a heavy responsibility.

Therefore, please check who the educator is, what kind of person they are, and what path they have taken, and make a careful decision.

👋 Hello!
I'm finally introducing myself ( ⸝⸝•ᴗ•⸝⸝ )੭⁾⁾

Hello!

I started studying development as a non-major. Somehow, I've already become a developer in my 6th year! Recently, I have been working as a developer while serving as CTO at two companies. Whenever I had spare time, I have been giving coding lectures, providing development consulting for companies, and delivering speeches.. Bất cứ khi nào có thời gian rảnh, tôi đều thực hiện các bài giảng lập trình, tư vấn phát triển cho công ty và diễn thuyết.

The number of students I have taught has already surpassed 24,000 (as of July 2025)! As I feel every time I teach my many students, I can never forget the sense of fulfillment that comes from education, so I plan to continue providing education here on Inflearn.
(* Produced successful applicants for Kakao Pay, Yanolja, and Woowa Brothers among students)

Just as I received a lot of help when I was going through difficult and challenging times, I wanted to become someone who could also help many others. Furthermore, I felt the most proud and happy when the value I created through development had a positive impact on others.

For these reasons, I hope that by giving and sharing what I have worked hard to achieve, those people can live a slightly better life.

Thank you!

🏆 Course Best Review

** This is a review written for the previously created <AWS Introduction/Practice That Even Non-Majors Can Understand>.


🚌 Feeling lost about which order to take the courses in?

'[2026] Essential Curriculum for Getting a Job as a Backend Developer (IT Service Companies)' Please refer to this!



🐶 Get a discount on courses with the roadmap

➡ Performance Optimization for Handling Large-Scale Traffic (https://inf.run/ecBS1)

Recommended for
these people

Who is this course right for?

  • A backend developer seeking employment at an IT service company

  • Job seekers who want to build a distinctive set of qualifications

  • Those who want to improve performance using Redis

  • Those who need to perform query performance improvement tasks in the field

  • Those who are new to Redis

  • Those who want to learn how to handle high-volume traffic

Hello
This is jscode

32,995

Learners

2,506

Reviews

788

Answers

4.9

Rating

20

Courses

 

[Sites]
Go to Youtube
Go to LinkedIn

 

[Career]
Current) JSCODE - Lead Mentor, CEO
Former) Tripod Lab Co., Ltd. - CTO
Former) Only One Universe Co., Ltd. - CTO
Former) DALY - CTO
Former) Teammate - CEO

 

[Books]

『Do it! JSCODE's Introduction to AWS』, Easys Publishing (2025.05)

 

[ETC]
- Corporate development consulting and coding education activities

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Co-instructor

Curriculum

All

42 lectures ∙ (3hr 3min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

161 reviews

4.8

161 reviews

  • songsme28861502님의 프로필 이미지
    songsme28861502

    Reviews 12

    Average Rating 5.0

    5

    30% enrolled

    • jscode
      Instructor

      Samuel Song, you even took the Redis course! I hope it was a great help to you this time as well 😊😊

  • bmworld님의 프로필 이미지
    bmworld

    Reviews 11

    Average Rating 4.8

    5

    30% enrolled

    • jscode
      Instructor

      Thank you for leaving a good rating, BM WORLD! I hope you complete the course and learn a lot~~

  • sik2boii님의 프로필 이미지
    sik2boii

    Reviews 16

    Average Rating 5.0

    5

    100% enrolled

    I was able to quickly complete the course thanks to the easy-to-understand explanation of the core concepts of Redis and its application to projects. Thank you.

    • jscode
      Instructor

      Hello, Sik-nim! Congratulations on your completion. I'm proud that you learned Redis quickly. I hope you can use what you learned well in your work~

  • boki님의 프로필 이미지
    boki

    Reviews 60

    Average Rating 5.0

    5

    100% enrolled

    Thanks to Jaeseong, I learned how to use AWS + Docker + Redis(ElastiCache)! Now I'm going to learn more about Redis mode, failover, Transaction, pub/sub, etc. Thank you~!!

    • jscode
      Instructor

      Congratulations on your completion, Boki-nim!! It seems like you've got a good grasp of Redis's basics~!! After you've got the basics, it'll be a lot easier to learn additional features of Redis. Have a good time learning!

  • deokgoni님의 프로필 이미지
    deokgoni

    Reviews 41

    Average Rating 4.8

    4

    30% enrolled

    The content is good~ I wish it was a little cheaper!

    • jscode
      Instructor

      Hello deokgoni! Thank you for your kind words. Next time, I will try to make more affordable introductory lectures! And I will try to hold a coupon discount event every time I open a new lecture:) Thank you!!

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