Florian Liestmann
Security Engineer at Lexware
Horburg, Lower Saxony, Germany
Summary
🤩
Rockstar🎓
Top SchoolFlorian Liestmann is a Security Engineer with 10 years of hands-on experience building secure systems for IoT and enterprise software, currently at Haufe-Lexware. He combines a pragmatic security mindset with deep low-level programming fluency—an OCaml/Rust/LISP hacker who has moved between roles in IT administration, software development, BI/AI leadership, and IoT security. His background spans startups and industrial settings (OTARIS, visoma, Panasonic), giving him strong operational instincts for hardening production systems and shipping resilient tooling. Trained in computer science and physics and pursuing applied software mathematics, he brings analytical rigor to threat modeling and automation. Colleagues describe him as a practical engineer who bridges researchy language work with real-world security delivery.
10 years of coding experience
6 years of employment as a software developer
Mathematisch-Technische Softwareentwicklung, Mathematisch-Technische Softwareentwicklung at FernUniversität in HagenAusbildung, Fachinformatiker Anwendungsentwicklung, 1,8, Ausbildung, Fachinformatiker Anwendungsentwicklung, 1,8 at Berufsschule LüneburgComputer Science & Physics, Computer Science & Physics at Universität Bremen
Github Skills (38)
nix10
nixos10
linux10
websocket10
http-client10
http-server10
java9
scala9
zio9
http9
nixpkgs9
cabal8
chat8
hackage8
ghc8
Programming languages (9)
Github contributions (5)
fxttr/syndicate
Nov 2020 - Jul 2024
Contributions:20 pushes, 1 branch in 3 years 8 months
fxttr/hadron
Aug 2022 - Feb 2025
The Hadron microkernel
Contributions:12 PRs, 75 pushes, 2 branches in 2 years 7 months
kernelmicrokernelsecureoperating-systemlumos
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