It's a small issue, but I feel the wording of the ad is important.They are calling for "expressions of interest", NOT "applications". There is a big difference.
"Expressions of interest" are just that, an expression of interest for positions that MIGHT become available.If a position then subsequently becomes available, you are then invited to apply.Also, there is no mention of "Contact Joe Bloggs for an information package" ,minimum requirements or an address to send CVs, as asked of applicants for engineering jobs in the same ad.
My instinct is that this is just an idea at this stage.How well advanced it is, is another question altogether.Just my thoughts.