Justin was born in Bellville, South Africa in 1974. After completing his PhD thesis on the PK of rifampicin, isoniazid, and pyrazinamide at the University of Cape Town in 2004 (following a BSc (Hons) and an MSc in the pharmacoeconomics of malaria), Justin moved to Sweden to join Uppsala University as a postdoctoral researcher, where he worked on modelling techniques for describing disease progression in acute stroke and a multiple-dose implementation of the transit absorption model, as well as developing tools for visual and numerical predictive checks. Justin began his industry career when he joined Novartis in Basel in 2006, where he provided pharmacometric support for projects in respiratory disease and oncology; at the same time, he played a central role in launching the DDMoRe consortium. Justin joined Exprimo in 2010, and while there, amassed considerable experience in a wide range of therapeutic areas and modelling applications before leaving to join the newly-founded Occams in late 2015.

Justin is the developer of the pmxTools package for R, is part of the nlmixr2 development team, has been a co-developer of Xpose 4, co-led the team developing DDMoRe's pharmacometric workflow standards ("Thoughtflow"), and developed the open-source NONMEM project management tool Census.

Justin was elected President of the International Society of Pharmacometrics (ISoP) for 2018-2019, and served as a member of its Board of Directors from 2016 to 2021. He remains an active member of ISoP, and has also been involved in the organisation of the PAGE meeting since 2013. Justin lives in Germany.


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