In 2006 he founded Lingua Germanica to work as a freelance language teacher on a part-time basis. In that capacity, he worked for Languesdoc and Bruxelles Formation and later Eurospeak.

In 2008 he also taught a social integration course in English for the non-profit organization Prisma in Malines.

From 2011 until 2017, he worked as a freelance translator- reviser Dutch-English for the INPO Utros. During that period he completed a training in copywriting at Syntra.

In November 2012 he resigned as a public servant to become a fulltime self-employed worker. Lingua Germanica was transformed into a translation and language advice agency, combining the activities of translator-reviser and private language teacher.

Permanent education and “a healthy mind in a healthy body” are central to the life of Christiaan Couturier. He followed various courses in supplementary healthcare, including tai chi, Bach remedies, nutrition and yoga. His conviction: whoever moves, stays healthy.