Twinkleflip was founded by Dr. Birgit Penzenstadler. She is an assistant professor at the California State University Long Beach where she leads the Resilience Lab. She researches the relation between sustainability and software engineering, and focusses on artifact-based requirements engineering and requirements engineering for sustainability. The expertise of her group includes requirements elicitation, analysis, and documentation techniques, for example sustainability goal modeling, as well as artifact models, quality modeling, tool support, and process improvement.
She is the main organizer of the workshop series Requirements Engineering for Sustainable Systems. Furthermore, she is a founding member of the Karlskrona Manifesto on Sustainability Design working group. She has also held multiple seminar series as well as numerous guest lectures (locally and abroad) on software engineering for sustainability.
Up to now, she has authored and co-authored over 50 peer-reviewed publications. She holds a Master’s degree from the Universität Passau, Germany, and a doctoral degree as well as a habilitation degree from the Technische Universität München (TUM), Germany. Before becoming faculty, she worked as a postdoctoral researcher at TUM and at the University of California, Irvine.