Hiroko Takamiya
Software Engineer at IBM
Cary, North Carolina, United States
Summary
🤩
Rockstar🎓
Top SchoolHiroko Takamiya is a seasoned software engineer with nine years of experience specializing in WebSphere security and incident response at IBM, currently serving as an Advisory Software Engineer and L3 Lead on the Product Incident Responder Team. She combines deep backend expertise in Java application server security—authenticaton, authorization, JASPIC, TAI, and LTPA token validation—with hands-on incident leadership to resolve complex production issues. Based in Cary, North Carolina, she contributes to the prominent Open Liberty open-source runtime, improving servlet container security and authentication integrations. Her work blends production-grade problem solving with proactive security hardening, making her a go-to engineer for both escalations and long-term platform improvements. Colleagues rely on her ability to translate subtle security bugs into robust, maintainable fixes that reduce future incident surface area.
9 years of coding experience
University of Tokyo
Github Skills (7)
javas10
authentication10
user-authentication10
authorizations10
authorization10
java10
security10
Programming languages (6)
Github contributions (5)
OpenLiberty/open-liberty
Nov 2017 - Jul 2022
Open Liberty is a highly composable, fast to start, dynamic application server runtime environment
Role in this project:
Back-end Developer
Back-end DeveloperContributions:51 reviews, 65 commits, 96 PRs in 4 years 9 months
Contributions summary:Hiroko primarily focused on back-end development tasks within the Open Liberty project. Their contributions involved modifying and enhancing security-related components, including authentication and authorization mechanisms. The commits demonstrate work on servlet container security, TAI (Trust Association Interceptor) configurations, and JASPIC (Java Authentication SPI for Containers) integration. They also addressed issues related to LTPA (Lightweight Third-Party Authentication) token validation.
open-libertyruntimelibertycomposableruntime-environment
una-tapa/was-debug
Nov 2017 - Feb 2023
Contributions:1 push, 1 branch in 5 years 4 months
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