Thomas Clausen / CTO & Physicist / Executive Tech Leader
Professional Experience
CTO
May 2024 – PresentArbit Cyber Defence Systems ApS
Director of Engineering
Jan 2022 – May 2024Kaseya / Datto, Inc.
Responsible for the implementation of Datto Endpoint Detection and Response, a cloud-based backend in AWS with agents running on customers' computers.
Engineering Program Manager
Jan 2017 – Jan 2022Datto, Inc.
Manager of software development teams responsible for Datto Workplace, a file sync and share solution for Windows, Mac, iOS, and Android. Custom backend deployed worldwide.
Project Manager and Developer
Feb 2016 – Jan 2017Edlund A/S
Full-stack developer and project manager. Client-server architecture based on WCF and integration with Java backend / JS frontend.
Group Program Manager
Feb 2013 – Feb 2016DHI, Hørsholm
Program Manager for development of software for modeling urban water flows, both frontend and backend. SaaS solution in Amazon cloud.
Software Developer
Sep 2009 – Oct 2012DHI, Hørsholm
Development of numerical engine for distribution of water in rivers and sewers.
Software Developer
Sep 2007 – Sep 2009Schlumberger, Copenhagen, Denmark
Postdoctoral Research Associate
Jan 2005 – Jan 2006European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
High Performance Computing Developer
Jul 2004 – Jan 2005AOES B.V., Leiden, Netherlands
Postdoctoral Research Associate
Oct 2002 – Jul 2004Wesleyan University, CT, USA
Education
DI Executive Leadership Program
Sep 2025 – Sep 2026Dansk Industri (DI)
Graduate Diploma in Business Administration (HD 1st Part)
Aug 2008 – Jul 2009CBS (Copenhagen Business School)
Ph.D. in Physics
Sep 1999 – Oct 2002Wesleyan University, CT, USA
Dissertation: “Quantum Chaos in the Periodically Driven Hydrogen Atom”
Advisor: R. Blümel
M.Sc. (Cand.scient.) in Physics
Aug 1997 – Sep 1999University of Copenhagen
Dissertation: “Nonlinear Cross Talk of Gratings in Photorefractive Materials”
Advisor: P. M. Petersen, RISØ
Certifications & Leadership
Innovation Management Certification
Teknologisk Institut (CEN/TS 16555)
Project Manager Certification
DHI, Hørsholm
Teaching Experience
Atomic Physics
Spring 2003Third-year undergraduate students
Wesleyan University, CT, USA
Computational Physics
Spring 2001Ph.D. students and senior physics undergraduates
Wesleyan University, CT, USA