- Built from scratch a SaaS platform used by major luxury brands (Louis Vuitton, Celine, Tag Heuer), generating hundreds of millions of KRW in revenue.
- Scaled the architecture from hundreds to 10,000+ requests per second using AWS serverless technologies (API Gateway, Lambda, DynamoDB, SQS) with 99%+ uptime.
- Designed a React + TypeScript dashboard for clients to analyze and interact with millions of data entries.
- Built a data lake on S3, Glue, and Athena, reducing query time and improving data accessibility.
Implemented SSO authentication via Okta and AWS Cognito, ensuring secure and seamless login experiences.
- Collaborated directly with C-level stakeholders (e.g., CTO of LVMH Asia, GM of Puig) to align on technical strategy and delivery.
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