Werner Dittmann
Freelance Software Engineer at PARADOX CAT GmbH
Albaching, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolWerner Dittmann is a freelance software engineer with 19 years of deep experience designing and implementing high‑availability, distributed and secure communication systems across Android, embedded, and telecom platforms. He combines hands‑on C/C++ and Java/Kotlin development with system and distributed architecture skills, having delivered encrypted audio, video and messaging solutions using SIP, (S)RTP, ZRTP and XMPP/OMEMO. Werner has led cross‑disciplinary teams on complex projects—from Android AOSP HALs for automotive 8K infotainment to migrating legacy payment terminals to modern Android/CMake builds—while maintaining rigorous QA and CI practices. He is an active contributor to open source security and communications projects (e.g., Apache, Jitsi, PJSIP) and implemented a Double Ratchet protocol used across mobile platforms. Based in Bavaria, he pairs decades of telecom-grade reliability work with pragmatic product delivery and a knack for refactoring brittle systems into robust, testable solutions.
20 years of coding experience
29 years of employment as a software developer
Certificate of apprenticeship, Telecommunications Engineering, Certificate of apprenticeship, Telecommunications Engineering at Berufsschule für Elektriker, MünchenSchool
English
Stackoverflow
31reputation
6kreached
4answers
1question
Github Skills (62)
crypto10
x50910
cpp10
rtp10
gnu10
image-processing9
xmpp9
java9
android-activity9
sip9
pjsip9
skein9
icq9
instant-messaging9
cryptography9
Programming languages (5)
Github contributions (5)
wernerd/GoRTP
Dec 2011 - Dec 2019
A RTP stack for Go
Contributions:23 commits, 7 PRs, 10 pushes in 8 years
gortp
SilentCircle/libzina
Jun 2015 - Aug 2017
ZINA is a secure messaging protocol for mobile devices
Contributions:406 commits in 2 years 2 months
mobile
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