Profileimage by Stefan Butz Software-Entwickler from Mainburg

Stefan Butz

not available until 12/30/2024

Last update: 24.12.2023

Software-Entwickler

Graduation: Computer Science (B. Sc. with Honors)
Hourly-/Daily rates: show
Languages: German (Native or Bilingual) | English (Full Professional) | French (Elementary)

Attachments

CV.pdf

Skills

Professional Experience using C, SQL, Python, Ruby, Perl and Shell.
Profound Knowledge in IIT-Security, UNIX Systems and TCP/IP Networking.
Extensive Knowledge in Java, Javascript/Typescript and React.

For more information have a look at my CV.

Project history

04/2022 - Present
Crypto Systems Developer
genua GmbH (Internet and Information Technology, 250-500 employees)

  • Advancing the internal OpenBSD fork (kernel and userland) which builds the basis for an highspeed packet filter and VPN Appliance (C, Shell)
  • Intensive testing using modern cloud infrastructure (Openstack, Ruby)
  • Peer code reviews
  • Reproducing and fixing complex bugs

09/2017 - 03/2022
Software Developer (dual course of study)
genua GmbH (Internet and Information Technology, 50-250 employees)

Key tasks:
  • Implementing user stories with focus on security and performance
  • Code reviews, documentation, tests
  • Reproduce and fix bugs and performance issues
Areas:
  • Full stack development (Ruby-on-Rails, JavaScript)
  • Systems Programming on Unix, mainly networking services and security relays (C, Perl, Shell)
  • Virtualization based on a L4 Microkernel, Linux, QEMU (C/C++, Python, Shell

05/2019 - 09/2019
Freelance Software Developer
Energie Allianz Bayern GmbH (Internet and Information Technology, 10-50 employees)

Developing an Android App to log maintenance work at windmills (React Native)

Local Availability

Open to travel worldwide
Bevorzugt Remote.
Reisbereitschaft im Großraum München.
Längere vor-Ort Projekte nur bei Unterstützung der Wohnungssuche.
Profileimage by Stefan Butz Software-Entwickler from Mainburg Software-Entwickler
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