Dr.-Ing. Sebastian Hahner

TL;DR: senior software engineer @ Vector Informatik, former post-doctoral researcher @ KIT Karlsruhe, and web video creator since 2010. I studied and received my doctorate in computer science, I stream live while coding, I love playing around with new technologies, and to share my passion for informatics.

I uploaded 4200+ videos that were viewed ~60 million times, I lead numerous open-source software projects, and I host the German podcast while(true) since 2018. I co-authored 30+ peer-reviewed research publications, many of which were published at world-leading venues including ICSE, SEAMS, and ICSA. You can find what I’m currently up to on my now-page or read the full story. Reach out if you have any questions, want to collaborate, or just want to say Hi!

relevant videos

	The story of my final year as a doctoral researcher and how I successfully completed my dissertation, summarized. (german).
	A video about my decision against a career as full time YouTuber and for pursuing a doctoral degree at the university (german).
	Two years into my dissertation, I gave a talk about my motivation to join the university and about my life as a researcher (german).
	An example for a promotional video that combines live coding, new technologies, and showcasing a DIY programming project (german).
	A documentation of a 28h hackathon, a competition where developers come up with new ideas and implement them from scratch (german).

A Best-Of my videos is available on YouTube.

latest podcast episodes (german)

1 Jahr später: Hat sich der Doktor gelohnt? - while(true) ep. 25	26 Dec 2025	00:40:01
Erst Bachelor, dann Master, dann Doktor - while(true) ep. 24	31 Aug 2025	00:35:42
Das große Mysterium der wissenschaftlichen Papiere - while(true) ep. 23	16 Dec 2023	00:40:48

All episodes are available on Spotify. See the full list on the podcast page.

interesting publications

Architecture-Based and Uncertainty-Aware Confidentiality Analysis

Sebastian Hahner

2024

Dissertation

Bib HTML PDF Slides

@phdthesis{hahner_dissertation_2024,
  address = {Karlsruhe, Germany},
  type = {Dissertation},
  title = {Architecture-Based and Uncertainty-Aware Confidentiality Analysis},
  school = {Karlsruhe Institute of Technology (KIT)},
  author = {Hahner, Sebastian},
  year = {2024},
}

Detecting Automatic Software Plagiarism via Token Sequence Normalization

Timur Sağlam, Moritz Brödel, Larissa Schmid, and Sebastian Hahner

In Proceedings of the IEEE/ACM 46th International Conference on Software Engineering (ICSE ’24), 2024

Bib HTML PDF

@inproceedings{saglam_detecting_2024,
  title = {Detecting Automatic Software Plagiarism via Token Sequence Normalization},
  url = {https://dl.acm.org/doi/10.1145/3597503.3639192},
  doi = {10.1145/3597503.3639192},
  series = {{ICSE} '24},
  pages = {1--13},
  booktitle = {Proceedings of the {IEEE}/{ACM} 46th International Conference on Software Engineering ({ICSE} '24)},
  publisher = {Association for Computing Machinery},
  author = {Sağlam, Timur and Brödel, Moritz and Schmid, Larissa and Hahner, Sebastian},
  year = {2024},
}

Architecture-Based Uncertainty Impact Analysis to Ensure Confidentiality

Sebastian Hahner, Robert Heinrich, and Ralf Reussner

In 2023 IEEE/ACM 18th Symposium on Software Engineering for Adaptive and Self-Managing Systems (SEAMS), 2023

Bib HTML PDF Slides

@inproceedings{hahner_architecture-based_2023,
  address = {Melbourne, Australia},
  title = {Architecture-{Based} {Uncertainty} {Impact} {Analysis} to {Ensure} {Confidentiality}},
  doi = {10.1109/SEAMS59076.2023.00026},
  booktitle = {2023 {IEEE}/{ACM} 18th {Symposium} on {Software} {Engineering} for {Adaptive} and {Self}-{Managing} {Systems} ({SEAMS})},
  publisher = {IEEE/ACM},
  author = {Hahner, Sebastian and Heinrich, Robert and Reussner, Ralf},
  year = {2023},
  keywords = {Analytical models, Confidentiality, Data Flow Analysis, Manuals, Predictive models, Privacy, Runtime, Software algorithms, Software Architecture, Software systems, Uncertainty, Uncertainty Management},
  pages = {126--132},
}

You can find a complete list of my publications here or on Google Scholar.