He owned Elefant Apotek in Købmagergade in Copenhagen from 1708 and served as royal court pharmacist from 1712.

Becker was taught the trade by his father and then continued his studied abroad in 1702–5.

[2] He was appointed to field pharmacist (feltapoteker) in 1709 and accompanied the army to first Scania and later Pommeria.

His pharmacy in Købmagergade was completely destroyed in the Copenhagen Fire of 1728 but reopened in a new building in 1737.

His widow then operated the pharmacy until 1756 when it was passed on to their son Johan Gottfried Becker (17 July 1723 – 20 April 1790).