CKA: Certified Kubernetes Administrator
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- π My name is Lee Ji Yoon
- π DevOps & AI Engineer
- π± Agentic AI Orchestration / LLM-based Systems
- π¬ Interested in AI Orchestration & Cloud Native Platforms
- π€ I am fluent in Korean (native) and English, with conversational proficiency in Japanese.
- π« Contact
- Built and operated on-premise Kubernetes-based microservices (MSA) platforms
- Developed RAG-based AI chatbot services for enterprise knowledge retrieval
- Implemented GitOps workflows with Helm packaging for online and air-gapped environments
- Developed internal DevOps management and observability platforms (backend and frontend)
- Designed and developed Agentic AI services orchestrating client requests through multiple MCP-based AI service agents
- Analyzed the Cloud On-Nara (central government) and the On-Nara Business Process System (local government), and assessed an RPA-based reporting system to identify automation opportunities
- Maintained and enhanced government (Korea Customs Service) mobile applications for public and enterprise users on iOS and Android
- Implemented client-side mobile UI using Objective-C (iOS) and Java (Android)
- Built and maintained hybrid mobile UI components using HTML, CSS, and JavaScript (Cordova-based)
- Integrated mobile clients with existing SOAP-based backend web services
- Implemented biometric authentication (fingerprint and face recognition) login features
- Improved application stability and usability through bug fixes, UI enhancements, and OS compatibility updates
- Executed MDM deployment tasks including server configuration, client integration, application testing, and preparation of administrator installation guides
- Supported an AI-driven customs inspection pilot by analyzing and labeling X-ray images using Python and LabelMe
- Designed and implemented core features including e-approval, bulletin board, and community modules
- Applied eGovFrame templates and Spring MVC architecture, designed Oracle-based schemas, and integrated MyBatis
- Led project execution as Project lead (PL): requirements analysis, schedule planning, weekly meetings, presentation planning, and delivery
- Authored and managed versioning for 15+ project deliverables, including system architecture, ERD, API specifications, and screen definition documents
- Established a Git-based collaboration workflow and introduced code review and retrospective practices to improve engineering quality and team efficiency
- As class leader, organized and shared company analysis and hiring information to strengthen team communication
- Performed physicochemical and instrumental analysis of IV/TPN solution raw materials and finished products
- Conducted raw material sampling, handling, and testing in compliance with GMP procedures
- Operated and analyzed data using multiple analytical instruments including HPLC, FT-IR, UV-Vis, Karl Fischer, and AAS
- Registered test samples in LIMS and documented test results and laboratory records
- Reviewed test results and applied quality release labels upon approval
- Managed retention samples including storage, LIMS registration, and disposal
- Maintained controlled storage conditions through daily temperature and humidity monitoring
- Updated SOPs, specifications, and test records in alignment with pharmacopoeias (KP, EP, BP, USP, JP)
- Managed analytical columns, reagents, and laboratory consumables procurement
- Assisted in physicochemical analysis of tablet raw materials and finished products
- Conducted loss on drying, residue on ignition, ash tests, and Karl Fischer analysis
- Supported dissolution testing, assay, and content uniformity testing
- Assisted with instrument operation and data recording under GMP guidelines
- Assisted in preparation of HPLC mobile phases and basic laboratory operations
- Supported analytical documentation management and pharmacopoeia translation
- Participated in hands-on training for analytical instruments and microbiological tests
- Assisted with sample storage management, reagent organization, and laboratory housekeeping