Daniel Gräfe
Software Developer Security Engineer at Gräfe Software & Security
Forchheim, Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolDaniel Gräfe is a software developer and security engineer with 14 years' experience building reliable, thread-safe backend systems and hardening applications. He runs his own consultancy, Gräfe Software & Security, and has held roles from Director of IT to cyber security engineer, bringing both leadership and hands-on expertise. His contributions to the popular Vapor server-side Swift framework demonstrate practical depth in concurrency, session management and memory-leak prevention—areas that often hide production instability. Academically grounded with a Master of Engineering in IT Security and Forensics and a BSc in Informatics, he combines formal security training with pragmatic engineering. Based in Forchheim, Germany, he blends open-source collaboration with commercial delivery, preferring to solve complex threading and initialization bugs that many teams overlook.
14 years of coding experience
6 years of employment as a software developer
Bachelor of Science Informatics, Bachelor of Science Informatics at FAU Erlangen-NürnbergMaster of Engineering - MEng IT-Sicherheit und Forensik, Master of Engineering - MEng IT-Sicherheit und Forensik at WINGS Professional Studies - Wismar University
Github Skills (10)
application-framework10
server-side-swift10
app-framework10
http10
web-framework10
swift10
event-loop10
concurrency10
docker6
dockers6
Programming languages (15)
Github contributions (5)
vapor/vapor
Mar 2018 - Apr 2019
💧 A server-side Swift HTTP web framework.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 commits, 6 PRs, 6 pushes in 1 year
Contributions summary:Daniel primarily focused on improving the Vapor framework's backend functionality and stability. Their work involved addressing base64 encoding issues, shutting down event loops to prevent leaks, and fixing service initialization problems related to thread safety. The user also contributed to session management improvements and debugging of a stack overflow issue. Additionally, the user fixed an issue regarding thread pool size.
http2frameworkswift-nioswiftserver-side
Timing-GmbH/LetsMove
Jan 2020 - Feb 2025
A sample that shows how to move a running Mac application to the /Applications directory
Contributions:1 review, 1 PR, 4 pushes in 5 years 2 months
dmgmac-applicationmachow-to-movedirectory
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