Portfolio
Oct. 2025 - Dec. 2025
Built the full user and admin workflow for monthly, day, and employee parking passes, including eligibility checks, payment/refund states, assignment, reporting, and external integrations.
Connected payment, refund, assignment, and daily sales data into one consistent lifecycle, reducing operational friction and settlement verification effort.
Oct. 2025 - Dec. 2025
Implemented an admin system for EV charging monitoring, including RBAC, notification target groups, batch recipient insertion, login history, and IP blocking.
Consolidated group-specific notification query logic with MyBatis Dynamic SQL to keep service flows simple and extensible.
Jul. 2025 - Aug. 2025
Built multi-region Azure infrastructure across Korea, US, and Europe with VNet Peering, VPN Gateway, VMSS, Application Gateway, Bastion, Azure SQL, and Cosmos DB.
Resolved traffic failures caused by Default Deny NSG rules and designed a migration path toward Private Endpoint-based database access.
Sep. 2025
Designed a cost-efficient serverless pipeline using Azure Functions, Cosmos DB, Static Web Apps, and a Node.js crawler for a personalized dashboard service.
Used Private Endpoint isolation and a proxy architecture to preserve security while restoring reliable frontend-backend communication.
Jul. 2025
Built an AI assistant that injects internal documents into prompts to reduce hallucination and generate consistent workflow outputs.
Designed persona-specific system prompts and a RAG flow for internal report and task-assignment use cases.