Kai Lehmann
Enterprise Architect at 1&1 Mail & Media Applications SE - GMX | WEB.DE | mail.com
Karlsruhe, Baden-Württemberg, Germany
Summary
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SeniorKai Lehmann is an Enterprise Architect with 13 years of hands-on software development and architecture experience, currently shaping mail and media platforms at 1&1 Mail & Media in Karlsruhe. He brings deep expertise across Java, .NET, C/C++, web services (SOAP/REST), SOA, and modern agile practices (PSM-certified Scrum, Kanban), blending design-pattern-driven architecture with practical CI and refactoring discipline. Known for pragmatic system design, he also contributes to open-source tooling—improving code quality and maintainability in the Irssi script repository by addressing PerlCritic issues. His background in protocol- and security-aware stacks (HTTP/SSL, TCP/IP, LDAP) gives him an edge in building robust, scalable messaging systems that balance performance and operational maintainability.
13 years of coding experience
Github Skills (7)
code-optimization10
script10
code-analysis10
irssi10
irs10
perl10
software-quality10
Programming languages (16)
Github contributions (5)
irssi/scripts.irssi.org
Oct 2014 - Oct 2014
Script Repository for Irssi
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 2 comments in 8 days
Contributions summary:Kai primarily focused on fixing PerlCritic issues across multiple Irssi scripts, indicating a strong understanding of the codebase and coding style guidelines. Their contributions involved code cleanup and optimization within existing scripts. The user's work improved the overall code quality and maintainability of the script repository.
irssi
obfuscoder/flee_docs
Jan 2017 - Aug 2022
Contributions:42 pushes, 1 branch, 11 issues in 5 years 7 months
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