Thomas graduated at the University of Basel/Switzerland in Economics and Management with focus on Human Resources and Organizational Development in 1999. After an internship in Johannesburg/South Africa at the Chamber of Commerce, he joined the Pharmaceutical company Novartis at their Headquarter in Basel. He held a number of local and international roles with increasing responsibility as HR Generalist and also was appointed Head of Compensation and Benefits for Switzerland. After 10 years in the human pharma business he moved to Novartis Animal Health where he was HR partner for South Europe, North Europe, CEE and Africa. In 2015 Novartis Animal Health was aquired by Eli Lilly and integrated with their Animal Health business Elanco. Thomas became HR Director for Elanco DACH and lead the HR integration of the 2 companies which later was complemented by the acquisition of the Bayer Animal Health Business.

In 2021 Thomas moved from Elanco to VetTrust Switzerland as CHRO. With more than 40 practices and clinics and around 350 employees, VetTrust is the largest Animal Health group in Switzerland.
In addition, Thomas volunteers as Job Coach and Mentor in the Basel area for unemployed job seekers aged 50+ (Tandem 50+).