Dominik Schürmann
CEO Co-Founder at heylogin
Germany
Summary
🤩
Rockstar🎓
Top SchoolDominik Schürmann is a security-focused founder and engineer with a PhD in IT security and about a decade of experience, currently leading heylogin as CEO and Co‑Founder. He builds passwordless access solutions that replace traditional passwords with a phone confirmation and a hardware-based end-to-end encryption core, with 2‑factor security by default and German hosting. His background blends rigorous research—15 publications and usability studies with over 1,000 participants—with hands-on open-source work as maintainer of OpenKeychain (the most widely used Android PGP app) and contributions to projects like Etar and F‑Droid. A former Google Summer of Code manager who has responsibly disclosed vulnerabilities in apps such as Telegram, Signal and Gmail, he bridges applied cryptography, usable security and product leadership to bring practical, auditable security to companies.
11 years of coding experience
9 years of employment as a software developer
Dr.-Ing. Computer Science, Dr.-Ing. Computer Science at Technische Universität Braunschweig
German, English, Latin
Stackoverflow
231reputation
29kreached
2answers
0questions
Github Skills (24)
kotlin10
calendars10
android-sdk10
ui-design10
java10
javas10
androidx10
android10
gradlew10
gradle10
testing9
openpgp9
user-interface9
userinterface9
material-design9
Programming languages (16)
Github contributions (5)
SufficientlySecure/html-textview
Feb 2017 - Sep 2020
TextView to display simple HTML
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:28 commits, 37 PRs, 78 pushes in 3 years 7 months
Contributions summary:Dominik's contributions primarily focus on updating the build environment and incorporating changes related to Android-specific features within the `html-textview` repository. They are seen modifying Java code related to HTML parsing and display, modifying Gradle build files and incorporating AndroidX dependencies. They also updated example code and fixed the license headers of several files.
textview
open-keychain/open-keychain
Feb 2017 - May 2021
OpenKeychain is an OpenPGP implementation for Android.
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:4 reviews, 213 commits, 345 PRs in 4 years 3 months
Contributions summary:Dominik primarily contributed to the OpenKeychain Android application by refactoring preference upgrades and fixing TLS connection errors. They also modified the code to use constants instead of `BuildConfig.DEBUG` for debugging and improved the status icon displays. Additionally, they fixed an issue related to empty clipboard and correctly removed status icons for unverified keys. The user also worked on chip dropdown, key view and key list improvements.
androidopenpgp
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