Welcome to Graduate Stories, where we celebrate the diverse journeys of our post-graduate Political Science students at Trinity College Dublin. Each month, our graduates share what sparked their interest, the highlights of their studies, and their advice for future students.
Stefan Keel
MSc Applied Social Data Science
Graduated in 2024
What are you doing now and could you provide a brief overview of your career journey since graduating?
Since graduating, I took a leap of faith into data science through an internship, which soon led to a full Data Scientist role and, in time, to my current position.
I am now a Product Owner and Data Scientist at Roche Diagnostics in Switzerland, where I lead AI and data science initiatives within Site Services. My work spans the end-to-end development of data and AI solutions, from identifying opportunities to designing, building, and deploying them, and involves techniques such as machine learning, natural language processing, large language models, and AI architecture. I also contribute to machine learning projects in pharmaceutical research.
I am especially proud to have built a career in a field I care deeply about, whilst working alongside exceptional colleagues and experts. In my own time, I also pursue independent societal and political research driven by my own interests.
What sparked your interest in the course and what aspects did you find most rewarding?
What drew me to this course was the possibility of combining analytical rigour with questions that matter in public life. I was looking for something technically challenging, socially relevant, and broad enough to explore different ways of thinking about politics, data, and society.
The most rewarding part of the programme, for me, was the people. I learned a great deal from my peers, whose perspectives, interests, and ambitions brought real depth to the experience. More broadly, the degree gave me a useful foundation from which to move into data science, whilst also reinforcing the importance of independent thought and of continuing to learn beyond any formal course structure.
What advice would you offer to anyone considering postgraduate studies in political science?
My advice would be to approach postgraduate study with curiosity, but also with a clear sense of your own expectations. It is worth looking closely at the substance of a programme, speaking to those who have experienced it firsthand, and considering carefully how well it aligns with both your interests and the realities of the wider world.
I think the value of postgraduate study often lies as much in what you bring to it as in the formal structure itself. For me, some of the most worthwhile aspects came from independent thinking, conversations with peers, and the opportunity to refine my own sense of direction. I would therefore encourage prospective students to choose thoughtfully, engage actively, and look for an environment that remains meaningfully connected to the world beyond the university.
May 2026