As a teacher, he got job positions in Oloron, Lourdes, Donibane Lohizune and Kastellin (Brittany).

On 27 July 1975, he was named associate member by Euskaltzaindia and made partner of Eusko Ikaskuntza.

He was Basque school network Seaska's first worker on a payroll as an instructor (1977-1981), as well as holding other responsibilities in Kanbo, Baiona, and Ziburu (1981-2003).

Goihenetxe could speak seven languages, i.e. Basque, French, Latin, English, Spanish, Gascon Occitan, and Aragonese.

On 2 May 2004, Goihenetxe accidentally died at Biscau, a mountain in Bearn, along with his partner Anne-Marie Pargade.