Esenza isigqibo sokuba ufuna utshintsho, uStéphane waqalisa ukukhangela umsebenzi kumbutho onxulumene nonobangela. Kungekudala wazibandakanya nombutho wokunceda abantu, iTélécoms Sans Frontières, ngexesha leMfazwe yaseKosovo. UStéphane wasebenza apho phantse iminyaka emi-5, esenza imisebenzi engxamisekileyo engaphezu kwama-30 njengeNtloko yeMisebenzi noPhuhliso.
Kwi-2003, wayishiya i-TSF waza wajoyina i-Surfrider Foundation yaseYurophu njenge-CEO. Ebudeni beminyaka kaStéphane njengentloko yombutho iSurfrider yaba yiNGO ekhokelayo yokusingqongileyo eYurophu, yaphumelela uloyiso olukhulu kulondolozo lolwandle. Kwangaxeshanye, uStéphane ube negalelo elibonakalayo ekudalweni koLwandlekazi kunye neQonga leMozulu, ekwazile ukufumana okokuqala ukudityaniswa kolwandle kumbhalo wesivumelwano semozulu kwiCOP21 eParis. Ukusukela ngo-2018, uStéphane usebenze njengomcebisi ozimeleyo oxhasa iiprojekthi ezininzi ezinxulumene nesizathu. U-Stéphane uselilungu leBhunga lezoQoqosho, iNtlalo kunye nokusiNgqongileyo kwiNgingqi yase-Aquitaine eFransi kwaye uhlala kwibhodi yee-NGOs ezahlukeneyo kunye neeNgxowa-mali ezisebenza kwintsimi yokugcinwa kolwandle, ukukhuselwa kwendalo kunye noqoqosho lwentlalo, kuquka: ONE kunye neRip Curl Planet Fund, World Surfing Reserve Vision Council, kunye ne-1% yePlanethi, eFransi.