Christian Fischer
Software Engineer at greenbone
Summary
🤩
RockstarChristian Fischer is a software engineer with nine years of experience focused on backend development for security tooling, currently contributing as a VT-Developer at Greenbone. He has hands-on expertise in the Greenbone Vulnerability Manager and OpenVAS scanner, improving configuration handling, transaction management, and logging consistency across those flagship open-source projects. His work shows attention to code hygiene—typo fixes, include corrections, and style updates—alongside meaningful feature changes like hiding sensitive authorization settings in scan configs. Comfortable working deep in C codebases and database backends, he balances reliability and maintainability in security-critical systems. Based in Germany, he brings steady, pragmatic contributions to widely used vulnerability management software and an eye for subtle but impactful improvements.
9 years of coding experience
Github Skills (11)
c1710
vulnerability-management10
c-programming10
c1110
vulnerability-detection10
backend10
vulnerability10
debug9
openvas9
debugging9
sql8
Programming languages (15)
Github contributions (5)
greenbone/openvas-scanner
Dec 2016 - Aug 2022
This repository contains the scanner component for Greenbone Community Edition.
Role in this project:
Backend Developer
Backend DeveloperContributions:90 reviews, 128 commits, 87 PRs in 5 years 9 months
Contributions summary:Christian primarily contributed to the OpenVAS scanner component. Their commits focused on modifying the logging behavior, replacing older logging functions with `g_message` for consistency. They also addressed code style issues, fixed typos, and updated header file includes to improve code maintainability and correct errors. The user also improved the code by fixing typos in documentation and improving the code style.
scanneropenvascommunity-editionvulnerability-managementgreenbone
greenbone/gvmd
Sep 2016 - Dec 2022
Greenbone Vulnerability Manager - The database backend for the Greenbone Community Edition
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 reviews, 102 commits, 78 PRs in 6 years 3 months
Contributions summary:Christian primarily contributed to the backend of the Greenbone Vulnerability Manager. Their work focused on modifying configuration files, particularly `src/manage_config_discovery.c`, to add and remove vulnerability detection selectors. They also made changes in `src/otp.c` to hide authorization settings in scan configurations and adjusted the transaction size in `src/manage_sql_secinfo.c`. Further contributions include merging of branches and various typo fixes across multiple source files.
backend-databaseopenvasgreenbone-vulnerability-managercommunity-editionvulnerability-management
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.