Takahiko Kawasaki
Software Engineer at Authlete, Inc.
Japan
Summary
🤩
Rockstar🎓
Top SchoolTakahiko Kawasaki is a veteran software engineer and co-founder with over three decades of hands-on experience, currently known for building Authlete, a leading Backend-as-a-Service for OAuth 2.0 and OpenID Connect with top-tier FAPI pedigree. He has repeatedly shaped and implemented open standards—recently contributing to FAPI, CIBA, OIDC4IDA, GM, RAR, MTLS and PAR—bridging specification work and production-grade engineering. His career spans embedded JVMs, mobile platform engineering, and high-performance backend systems, reflecting deep systems and protocol expertise from device to cloud. An active open-source contributor, he has implemented core WebSocket functionality in a popular Java client and publishes clear, well-illustrated technical blogs in English and Japanese that are widely referenced, including an article adopted by the OpenID Foundation. Based in Japan, he combines product leadership and consulting experience with a knack for translating complex security standards into practical, deployable services.
14 years of coding experience
27 years of employment as a software developer
Keio Shiki High SchoolPolicy Management, Policy Management at Keio University
Japanese, English
Github Skills (8)
javas10
websocket10
websockets-client10
websocket-client10
network-programming10
client-websocket10
java10
api-design9
Programming languages (12)
Github contributions (5)
TakahikoKawasaki/nv-websocket-client
Mar 2015 - Mar 2021
High-quality WebSocket client implementation in Java.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:310 commits, 11 PRs, 261 pushes in 6 years
Contributions summary:Takahiko focused on implementing core functionalities for a Java-based WebSocket client. Their contributions included adding an `onOpen` method to the `WebSocketListener` interface, renaming the `OpenHandshakeBuilder` class to `HandshakeBuilder`, and introducing methods to set user information and enable SNI. Furthermore, the user worked on implementing `WebSocketInputStream.readFrame()` functionality to handle incoming WebSocket frames, and implemented various methods for control (Ping/Pong/Close) and data frame processing.
websocketswebsockethigh-qualitynettyjava
authlete/authlete-php-laravel
Apr 2018 - Aug 2020
Authlete Library for Laravel
Contributions:96 commits, 1 PR, 44 pushes in 2 years 3 months
phpauthenticationmulti-tenantoauth2laravel
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