SoftZion · Software Engineer

• Maintained multi-tenant architecture with strict client data isolation and backward-compatible rollouts.
• Optimized bulk data import by moving validation to the Java backend, scaling capacity from 3,000 to 30,000+ records per file.
• Built a centralized exception-handling framework that captures SQL/header logs to the DB, reducing troubleshooting time.
• Automated daily server health checks across Linux/Windows—50% less manual inspection.

SoftZion · Client: Korea AI & Software Industry Association (KOSA)

• Built the national AI product/service certification system mandated by Korea's AI Framework Act—a review workflow spanning applicant, certifying body, and technical reviewer roles, with certificate issuance and authenticity lookup.
• Built AX360, a government AI-transformation portal that makes 2,700+ public project listings and 1,000+ AI companies searchable in one place.
• Designed active-active WAS redundancy—shared NAS for sources and file storage, sessions externalized to Redis, and batch jobs pinned to a single node to prevent duplicate execution.
• Executed a zero-downtime production cutover by staging traffic through nginx upstream health checks, verifying each node before rebalancing.
• Operate both portals in production on Naver Cloud—release deployment, monitoring, and incident response.

SoftZion · Client: Enterprise 3PL logistics provider

• Migrated 5M+ records (contract and sales data) during enterprise client onboarding—handled bulk Excel imports and API-sourced data through custom SQL and stored procedures.
• Improved high-traffic dashboard DB performance: refactored complex queries with CTEs and indexing—80% faster execution.
• Integrated Naver News REST API asynchronously to deliver real-time logistics industry updates without blocking.

SoftZion · Client: Global automotive manufacturer

• Built the survey management module: creation, distribution, and analysis of customer feedback.
• Integrated Enterprise DRM for upload compliance, handling server-side decryption to safely parse Excel data.

Organized women's badminton tournaments and health workshops at local universities and women's colleges, fostering cultural exchange and women's empowerment in challenging environments.

Progressed from leading a small group of 15 members to overseeing a division of 50+. Currently mentor 4 junior leaders to coordinate weekly meetings and annual retreats, fostering team cohesion.