Takumi Kitamura
Senior Lead Engineer at GREE, Inc.
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolTakumi Kitamura is a Senior Lead Engineer with 17 years of experience specializing in software, infrastructure, and security architecture, currently based in Chiyoda, Japan. At GREE he has progressed through engineering and leadership roles since 2012, driving infra and application initiatives and shaping long-term technical strategy. He blends hands-on backend work with systems-level design, demonstrated by open-source contributions to the well-known Twitter4J project where he implemented and refactored image/media upload support. Takumi is pragmatic and security-minded, comfortable operating across code, deployment pipelines, and architecture. Not actively looking for new roles, he prefers to avoid recruiter outreach and maintains selective public involvement such as membership in PEAR. His background reflects a steady trajectory from engineering manager to senior technical leadership, with a penchant for solving integration and media-handling challenges.
17 years of coding experience
18 years of employment as a software developer
none yet
Japanese
Github Skills (12)
apim10
javas10
api10
oauth10
java10
twitter-api10
testing9
http-client9
rest-api8
api-rest8
restful-api8
api-design8
Programming languages (8)
Github contributions (5)
Twitter4J/Twitter4J
Nov 2010 - Aug 2011
Twitter4J is an open-source Java library for the Twitter API.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits in 9 months
Contributions summary:Takumi primarily contributed to the `twitter4j/twitter4j` project by implementing support for various image upload services, specifically Twipple. The commits show modifications to the `ImageUpload.java` and `ImageUploadTest.java` files to incorporate the new Twipple image uploader, including necessary API interactions and testing. Further commits refactored the project structure by moving the `ImageUpload` class to a new package (`t4j.pics` and then `media`), deprecating older methods, and introducing interfaces for media uploading.
apijava-libraryjava-sourcetwitter4jtwitter-api-v2
withgod/mumble-misc
May 2009 - Oct 2021
Contributions:6 commits, 1 push in 12 years 6 months
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