Joan Isern
Software Architect, E-Signature Products
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolJoan Isern is a seasoned software architect based in Barcelona with over two decades of experience and eight years in senior roles focused on e-signature, authentication and PKI products. He leads teams hands-on—defining architecture, mentoring developers, ensuring test quality, and regularly contributing code in Java—while keeping a pragmatic focus on fun and craftsmanship. His career includes building security-critical platforms from scratch, achieving Common Criteria EAL4+ certification, and guiding product evolution across Safelayer and Entrust. Joan is also an active open-source contributor to rsyslog, improving the omprog module’s reliability and documentation—an indication of his attention to both robustness and clarity. Colleagues know him for blending architectural vision with deep implementation work and a disciplined approach to automated testing and process refinement.
8 years of coding experience
17 years of employment as a software developer
UPC Universitat Politècnica de Catalunya
English, Spanish, Catalan, French
Stackoverflow
161reputation
3kreached
3answers
0questions
Github Skills (21)
sphinx10
c-programming10
c1110
rsyslog10
c1710
error-handling10
logging10
documentation10
syslog10
multithreading9
process-management9
configuration-management9
configuration-file9
configurations9
testing8
Programming languages (6)
Github contributions (5)
rsyslog/rsyslog
Sep 2017 - Apr 2020
a Rocket-fast SYStem for LOG processing
Role in this project:
Back-end Developer
Back-end DeveloperContributions:21 commits, 23 PRs, 127 comments in 2 years 8 months
Contributions summary:Joan primarily contributed to the `omprog` module within the rsyslog project. Their work focused on enhancing the module's functionality, particularly by adding error handling, transaction support for external plugins, and improving output capture and redirection. Furthermore, the user refactored tests and fixed issues related to child process management, ensuring proper closing and handling of child processes, along with memory management. These contributions demonstrate a focus on improving the reliability and functionality of the `omprog` module, crucial for log processing.
syslogloggingrocketelasticsearchkafka
rsyslog/rsyslog-doc
May 2018 - Apr 2020
documentation for the rsyslog project
Role in this project:Technical Writer
Technical WriterContributions:6 commits, 6 PRs, 13 comments in 1 year 11 months
Contributions summary:Joan's commits primarily focus on documenting various aspects of the rsyslog project's "omprog" module. They added documentation for new features and parameters, addressed documentation issues, and updated existing documentation to reflect changes in different versions of the software. The contributions include new sections, warnings, and examples within the documentation, significantly improving the clarity and comprehensiveness of the documentation.
rsyslogloggingsphinx
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