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Work Experience
Senior Software Engineer at Buzzvil
October 1, 2024 - PresentArchitected and implemented user-engagement modules within a rewarded-ads SSP, processing 23M+ events/day (Kafka/Go), including a real-time daily-requests system and a leaderboard service. Led a 4-engineer team and established an observability-focused culture with SLOs, dashboards (Prometheus, Loki, DataDog).
Software Engineer at Buzzvil
April 1, 2024 - September 1, 2024Reduced API latency by 63% from p50 1.2s to 450ms by implementing JWT-based data caching to reduce external API dependencies; optimized backend data caching and query paths.
Software Engineer at Lisbon Factory
June 1, 2022 - November 1, 2023Led and implemented NFT marketplace using React, Node.js, AWS RDS and DocumentDB; maintained 99.9% uptime supporting $6M in crypto by operating 4 monitored blockchain nodes on AWS.
Backend Engineer at Krafton
June 1, 2021 - June 1, 2022Built the PUBG in-game event system serving over 4.3 million participants, using AWS SQS and DynamoDB; implemented a gach a system using Steam API and AWS DynamoDB to strengthen user loyalty, contributing approximately 10% of quarterly revenue after launch.
Education
B.S. in Computer Science at Korea National Open University
January 1, 2020 - January 1, 2022Non-degree Immersive Computer Science Program at Korea Advanced Institute of Science and Technology (KAIST), Daejeon
December 1, 2020 - May 1, 2021Qualifications
Industry Experience
Software & Internet, Gaming
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