Stefan Wellnitz
Software-Engineer at Wellnitz Stefan - Software-Entwicklung & Webdesign
Inzell, Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolStefan Wellnitz is a pragmatic software engineer from Inzell, Bavaria with nine years of hands-on experience spanning embedded systems, backend development and DevOps. He turned a lifelong fascination with hardware and software into a career via vocational training and a BSc in Computer Science, then broadened his impact through freelance web and software projects since 2018. Stefan has contributed to notable open-source security tooling like DefectDojo—adding kube-bench parsing, SSLyze JSON imports and Microsoft Teams notifications—demonstrating a focus on practical security integrations. His professional path includes roles across product engineering and consultancy, blending .NET and backend expertise with operational automation. Known for bridging low-level understanding with production-grade systems, he brings curiosity for both hardware-adjacent challenges and secure, maintainable software delivery.
9 years of coding experience
6 years of employment as a software developer
Bachelor of Science - BS, Informatik, Bachelor of Science - BS, Informatik at Rosenheim Technical University of Applied Sciences
Github Skills (9)
python10
django10
kubernetes-pods9
security9
devsecops9
json9
kubernetes9
cicd8
devops8
Programming languages (12)
Github contributions (5)
DefectDojo/django-DefectDojo
Sep 2020 - Aug 2022
DevSecOps, ASPM, Vulnerability Management. All on one platform.
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:742 reviews, 250 commits, 510 PRs in 1 year 10 months
Contributions summary:Stefan implemented features for importing and parsing kube-bench reports to improve security. They also added support for Microsoft Teams notifications, replacing the HipChat integration, and modified the form for selecting endpoints. Furthermore, the user contributed to the codebase by incorporating JSON import functionality for SSLyze reports and provided code changes to the settings file to support the use of various tools.
pythondjangovulnerability-managementbugbountydefectdojo
MaibornWolff/SecObserve
Mar 2023 - Apr 2025
SecObserve is an open source vulnerability and license management system for software development teams and cloud environments. It supports a variety of open source vulnerability scanners and integrates easily into CI/CD pipelines.
Contributions:57 releases, 28 reviews, 3163 PRs in 2 years
devsecopslicense-managementsecurity-automationsecurity-toolsshiftleft
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.