Norito Agetsuma
Senior Technical Support Engineer at Red Hat
Chiba Prefecture, Japan
Summary
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SeniorNorito Agetsuma is a Senior Technical Support Engineer with 11 years of experience specializing in Java application servers, JVM performance tuning, and Elastic Stack solutions. Based in Chiba, Japan, he has supported and optimized production JBoss and Tomcat environments and served as an in-house solution architect and troubleshooter at NTT COMWARE before joining Red Hat. A two-time Java Day Tokyo speaker hosted by Oracle Japan, he blends deep diagnostics and code-level analysis to resolve complex performance issues. Known for bridging development and operations, he brings practical hands-on engineering coupled with a history of architecting observability and performance improvements in enterprise systems.
11 years of coding experience
10 years of employment as a software developer
Github Skills (46)
jakartaee10
non-blocking10
http10
websocket10
jboss10
java-nio10
java10
servlet10
http-server10
wildfly10
webserver10
template-engine9
ibatis9
ajp9
thymeleaf9
Programming languages (5)
Github contributions (5)
nagetsum/quarkus-glassfishjp
May 2019 - Dec 2019
Quarkus demo application for meetup event
Contributions:25 commits, 24 pushes, 3 branches in 7 months
quarkus
nagetsum/jboss-openshift-examples
May 2019 - Oct 2025
Contributions:49 pushes, 6 branches in 6 years 5 months
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