He left school early after settling on an engineering course at Aoraki Polytechnic, now Ara.
''I did my engineering course there and then got my role here,'' he said, of his position at Barkers.
He started out fruit tipping about two years ago and six months ago secured a role as engineer.
Mr Gibbs was among the Barkers staff who chatted to people during the recent expo, sharing his knowledge of the industry and company.
Barkers was one of nine companies on site throughout the day, where representatives talked to teens and adults about the career options available within their business.
The other groups represented were McCain, Fonterra, Functional Whole Foods, Oceania, Silver Fern Farms, Marsden Engineering, Ara, Mito, and the University of Canterbury engineering department.
Jacob Price was among the pupils who made the most of the expo.
''It's awesome,'' he said.
''It's good to see what it's like out there in the real world and gives us more insight to what we can do and what opportunities there actually are.''
While the expo was designed for year 10-13 pupils, it was open to the rest of the school and adults, including parents, during the lunch break.
Geraldine High School careers dean Anita Body said the concept, which was supported by Aoraki Development, aimed to showcase the many career possibilities and their links with further education.
She said it was an opportunity to show youngsters ''what was out there''.
''So many of these businesses have so much more on offer now. [It is an] opportunity for [pupils] to come and see [them] and talk and hopefully, that might spark a bit of interest.''
A further two pathways are planned for the high school later in the year, including one for the services industry and social and community services.
''It's a focus we have at Geraldine High School, to connect with our businesses and community and trying to strengthen these ties,'' Mrs Body said.
-By Alexia Johnston
Central Rural Life