• Coordinate research activites in the ACTWELL project together with Prof. Stachl
• Lead one or more ACTWELL work packages, in particular the sequence and dynamics analyses.
• Process and model high-dimensional, intensive longitudinal smartphone log data
• Develop and validate interpretable machine learning models linking behavior and context to well-being outcomes
• Publish as lead and co-author in psychology, computational social science, and interdisciplinary outlets; present at international conferences
• Maintain reproducible analysis pipelines and preregistrations, and prepare code and materials for open release in line with the project's SNSF Data Management Plan
• Contribute to privacy-preserving data handling and the lab's research ethics practice
• Co-supervise doctoral and master's students; contribute to lab meetings and methods workshops

The Computational Behavioral Science Lab, led by Prof. Dr. Clemens Stachl, is looking for a postdoctoral researcher to join ACTWELL, a project funded by the Swiss National Science Foundation (Grant No. 215303).

ACTWELL investigates how subjective well-being is expressed in and shaped by everyday behavior. Using large smartphone sensing datasets from Europe and the United States, the project combines behavioral logs, contextual signals (e.g. mobility, outdoor time), and self-reports. Interpretable machine learning is used to predict well-being, examine individual differences, and model how daily activities and contexts relate to well-being over time.

What we offer:

- Access to large, existing smartphone sensing datasets
- Generous conference and research budget
- International collaborations with Stanford, LMU, and SODAS
- A supportive research environment with regular lab meetings and peer feedback
- Support for competitive postdoctoral funding applications (e.g. SNSF, MSCA)
- Relocation and permit support through the University of St.Gallen
- Hybrid (local + remote) agreements are possible

Application
Please send a single PDF containing:

1. Cover letter (max. 2 pages) explaining your fit with ACTWELL and which part of the research agenda
you would want to lead
2. CV including publication list, with links to code or data repositories where available
3. One first-authored paper or preprint
4. Names and contact details of two referees
5. PhD certificate