Dimitris Soumis
Senior Software Engineer at IBM
Greece
Summary
🤩
Rockstar🎓
Top SchoolDimitris Soumis is a Senior Software Engineer with six years of experience building robust backend systems and improving server-side reliability for enterprise and open-source projects. He has driven core work on JBoss and Tomcat-class servers at Red Hat and IBM, focusing on performance, security hardening, and low-level networking fixes such as cipher de-duplication and stream timeouts. A master's-trained computer scientist from the National & Kapodistrian University of Athens, he blends academic rigor with practical production delivery across Java EE and modern backend stacks. He has also supported hands-on teaching of Java/C++ OOP, and briefly managed projects in the telecom sector, which gives him both mentoring and cross-functional coordination skills. An active open-source contributor, his improvements to widely-used server projects reflect a focus on stability and measurable operational impact. Based in Greece, he consistently seeks efficiency gains that translate into safer, higher-performing systems.
6 years of coding experience
5 years of employment as a software developer
Master's degree in Computer Science Data Information and Knowledge Management, Master's degree in Computer Science Data Information and Knowledge Management at National & Kapodistrian University of Athens
Greek, English, German
Stackoverflow
33reputation
5kreached
4answers
0questions
Github Skills (15)
tomcat10
javas10
http10
java10
networking9
testing8
webservice6
authentication6
name-binding6
filter6
spring6
rest6
spring-boot6
if-statement6
jax-rs6
Programming languages (10)
Github contributions (5)
apache/tomcat
Apr 2022 - Jun 2026
Apache Tomcat
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 25 PRs, 119 pushes in 4 years 3 months
Contributions summary:Dimitris primarily focused on improving the Apache Tomcat server, a Java-based HTTP server. Their contributions involved addressing issues related to security and functionality, such as removing duplicate ciphers and implementing timeouts for reading data streams. They also made improvements to test coverage and added a new valve to enforce parameter limits, indicating a focus on stability, performance, and security enhancements within the Tomcat project. These changes demonstrate a solid understanding of server-side development and low-level networking.
tomcatjavaeejavanetwork-server
dsoumis/tomcat
Feb 2023 - Jun 2026
Apache Tomcat
Contributions:46 pushes, 34 branches in 3 years 4 months
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