Jan Jansen
Informationssicherheitsbeauftragter Information Security Officer
Ruhr Region Germany
Summary
🤩
Rockstar🎓
Top SchoolJan Jansen is an Information Security Officer and platform engineer based in the Ruhr region with 11 years of experience blending security, backend engineering and large-scale platform operations. At G DATA he runs ISO 27001-aligned ISMS processes while building and securing Kubernetes-based developer platforms and backend processing pipelines with a shift-left mindset. His hands-on background includes writing .NET microservices, operating container platforms, and designing a large JanusGraph-backed threat intelligence database—work reflected in upstream contributions to JanusGraph and other open-source projects. He has deep low-level and security-focused coding experience (e.g., strengthening a .NET PE parsing library and improving FileReader internals in the Servo engine) and serves on the JanusGraph Technical Steering Committee, showing a mix of practitioner rigor and community leadership. Trained with an MS in IT-Security from Ruhr University Bochum, he combines academic foundations with pragmatic, security-first engineering.
11 years of coding experience
3 years of employment as a software developer
Master of Science - MS IT-Security, Master of Science - MS IT-Security at Ruhr University Bochum
German, English
Github Skills (30)
blobs10
net10
dotnet10
schema-design10
graph-database10
java10
asp-net10
javas10
malware10
database-design10
db-schema10
dotnet-core10
database-schema10
rust10
csharp10
Programming languages (20)
Github contributions (5)
JanusGraph/janusgraph
Apr 2018 - Nov 2022
JanusGraph: an open-source, distributed graph database
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:561 reviews, 209 commits, 485 PRs in 4 years 8 months
Contributions summary:Jan's contributions focus on adding and implementing property and connection constraints within the JanusGraph database, as evidenced by the commit messages. The code changes involve modifications to the schema, including edgeLabel and vertexLabel property constraints, as well as connection edge constraints. These commits demonstrate a deep understanding of database internals and schema design. Furthermore, the user made changes to support direct commit of schema changes for vertex properties, connection and edge properties, which show improvements to database operability and flexibility.
tinkerpopsolrnebulagraphhbasedatabase
intellij-rust/intellij-rust
Feb 2017 - May 2018
Rust plugin for the IntelliJ Platform
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:66 commits, 56 PRs, 405 comments in 1 year 3 months
Contributions summary:Jan primarily contributed to the development and testing of the IntelliJ Rust plugin. They added an unsafe error annotator with quick fixes, and extended a mutable check annotator adding a quick fix. The user also implemented an extract method refactoring, supported autoderef using language attributes, and worked on documentation and other refactorings in the project. They added several tests in the test suites.
intellij-platformrustclionintellij-pluginjetbrains
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