Yeongho Kim

yeonghoey@gmail.com	+82-10-7322-1371
github.com/yeonghoey	linkedin.com/in/yeonghoey

Experience

I was in charge of infrastructure for Durango: Wild Lands, a seamless open world MMORPG.

Built data pipelines for time series data which are generated by distributed game servers.
Based on Fluentd, Amazon Kinesis Streams, AWS Lambda, Elasticsearch, Spark and Zeppelin.
Managed infrastructure (>200 instances) on AWS (>15 services) via Terraform.
Maintained Couchbase, the game's main NoSQL database, to set up, scale up and out, etc.

I improved code quality of the recommendation engine for WATCHA and WATCHA PLAY, a Netflix-like recommendation and streaming service in Korea.

Established Scala coding standard for the team and introduced code quality tools like scalafmt, scalariform, Specs2 and ScalaCheck.
Refactored lots of codebase which is based on Finagle, high-concurrency RPC framework by Twitter.

I developed an intelligent matchmaking system for Bubble Fighter, a casual TPS.

Designed Matchmaking System based on TrueSkill in C++.
Gave a presentation on NDC 2015 (Korean)
Wrote anti-hack codes like memory encryption, hash validations for game data, etc.
Optimized network performance to cope with severe network conditions on localization for Indonesia.