Venerable Geshe Tenzin Namdak first worked as an environmental researcher having graduated in hydrology.
He started studying Buddhism at Maitreya Institute in The Netherlands in 1993 and took ordination from His Holiness the Dalai Lama before engaging in his formal studies in Buddhist philosophy and psychology at Sera Jey Monastic University, South India, in 1997. 
He completed the entire twenty-year Geshe program at Sera Jey in 2017 and the traditional one-year Vajrayana study program at Gyume Tantric College in January 2019, the first Westerner to do so.

Geshe Namdak was a founding teacher of Sera Jey’s Translators Program and member of Sera Jey’s Education Department for six years, was one of the founding trustees and teachers of CKSL, a (FPMT) centre that teaches the Nalanda tradition of Buddhism, Bangalore, and the first director of Shedrup Sungdrel Ling, a house for western monks studying at Sera Jey, for fifteen years.

He has received a great number of teachings from His Holiness and many other highly respected teachers and lineage masters, has done many retreats and is an experienced teacher in practical and philosophical aspects of Buddhism that he teaches with great clarity and a good sense of humour.

Currently, he is the resident teacher at Jamyang Buddhist Centre, London, and teaches also at other centres in Europe and India.