My DevLog. I’m a Developer, who Thrives by …
Enduring.Persevering.Resisting.Overcoming.
Welcome My DevLog!
I’m a Developer, who Thrives by …
Enduring.Persevering.Resisting.Overcoming.
I am a backend developer passionate about building things, exploring technology, and discussing development. While I identify as a junior-level developer, I have already taken full ownership of backend development for several real-world web services, including a commercial SaaS, an internal trade area analysis solution, and a logistics relay server.
I have a strong interest in new technologies and open source. I have made several contributions to the Django REST Framework, the de-facto standard for Django Web API development. Beyond contributing, I also enjoy building and publishing my own necessary libraries, actively seeking feedback and engaging in discussions with other developers.
When learning any technology, I strive to understand it deeply – to the point where I can clearly explain it to others. Moving forward, I am eager to tackle increasingly complex technical problems and take on greater challenges, aspiring to grow into a highly skilled and impactful backend developer.
My Skills
As a developer, these are the skills I have. I still love to hone my skills, and I’m still breaking, learning, and growing.





Core Skills
-
Django & DRF (Python)
- Designing RESTful APIs and developing production-grade backends using Python, Django, and DRF. (Includes
open-source contributions to DRF.)
- Designing RESTful APIs and developing production-grade backends using Python, Django, and DRF. (Includes
-
Spring Framework (Java & Kotlin)
- Designing and developing enterprise-level web applications using Java, Kotlin, and the Spring Framework
(including Spring Boot).
- Designing and developing enterprise-level web applications using Java, Kotlin, and the Spring Framework
-
RDBMS (PostgreSQL, MySQL, Oracle …)
- Proficient in efficient data modeling, SQL query writing, and optimization across various RDBMS (e.g.,
PostgreSQL, MySQL).
- Proficient in efficient data modeling, SQL query writing, and optimization across various RDBMS (e.g.,
Experience With
-
Celery
- Experience implementing large-scale asynchronous tasks and background processes using Celery.
-
Redis
- Utilizing Redis as an in-memory store for data caching and configuring it as a message broker/result
backend for Celery.
- Utilizing Redis as an in-memory store for data caching and configuring it as a message broker/result
-
Nginx & Caddy
- Experience operating web servers and configuring reverse proxies and basic load balancing with Nginx and
Caddy.
- Experience operating web servers and configuring reverse proxies and basic load balancing with Nginx and
Core Skills
-
AWS EC2
- Currently operating and maintaining multiple EC2 instances in a production environment.
-
AWS RDS
- Hands-on experience in operating, monitoring, and troubleshooting AWS RDS in production.
-
AWS S3
- Managing production-level hosting for static assets and media files using AWS S3.
-
Web Servers (Nginx & Caddy)
- Proficient in setting up Nginx and Caddy, including HTTPS (SSL/TLS), for production deployments.
Experience With
-
AWS CI/CD (CodePipeline)
- Experience building automated CI/CD pipelines using AWS CodePipeline, CodeBuild, and CodeDeploy for
production.
- Experience building automated CI/CD pipelines using AWS CodePipeline, CodeBuild, and CodeDeploy for
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Hi! My name is JAEGYUN JUNG, and I’m a passionate, skilled, and prepared developer.
Hi! My name is JAEGYUN JUNG, and I’m a passionate, skilled, and prepared developer.
I’m currently working as a freelance developer and attending university. Please check out my posts and services, and feel free to contact me!

