About

👋 Jay Gue Lee

🧑‍💻 **Backend Developer

Cloud & DevOps Engineer

Engineering Evolution**

With over 4 years of backend development experience, I specialize in designing scalable and reliable systems, with deep hands-on expertise in AWS, Kubernetes, and DevOps tooling.

Currently at Doloplanet, I lead architecture redesign and developer tooling to power a global community platform.
Previously, I contributed to e-commerce platforms at RIMAN Korea and Eland Retail, building cloud-native services and CI/CD pipelines.

As an active member of AWSKRUG and Kubernetes Korea, I’ve spoken at and contributed to KCD Korea & OpenInfra Day.
To back my skills with credentials, I’ve obtained multiple AWS & CNCF certifications, continuously evolving toward a Engineer role.

🏆 Certifications

💼 Work Experience

🪐 Doloplanet (AI ChatBot, Technical Lead)

January 2025 – Present

Developed core APIs for AI character chat and long-term memory (RAG) functionalities.
Led infrastructure migration from AWS Elastic Beanstalk to Kubernetes (EKS).
Designed and provisioned self-hosted Dify AI deployment using ECS and then to Kubernetes (EKS).
Implemented CI/CD pipeline using GitHub Actions and ArgoCD.
Built end-to-end monitoring stack with Prometheus and Grafana.
- Tech Stack:

💄 RIMAN Korea (E-commerce, Back-end Developer)

June 2021 – May 2023 (2 yrs)

Developed REST APIs and batch processes for platform services.
- Tech Stack:
Managed code versioning using AWS CodeCommit and git.
Built and deployed domain applications.
- Back-end:
- Front-end:
Built Unified Messaging System.
- Infra:
Implemented asynchronous coupon publishing system.
- Tech Stack:
Applied IRSA for secure IAM role allocation per app.
- Tech Stack:
Monitored & troubleshot with observability tools.
- Tech Stack: