It seems that at present there aren't very many Java jobs in Bilbao. Why not have a look at jobs in similar fields of expertise? Looking at the most dominant subcategories, we find jobs in Big Data and Oracle Database.
For Java jobs, senior staff are chiefly sought after. 4 jobs posted on Jobspotting by businesses in this field are for senior positions. With internships in short supply in this area, none are currently advertised on Jobspotting. Out of the businesses at present hiring for Java on Jobspotting, none of these are startups. 2 of 6 businesses publishing jobs on Jobspotting, are recruitment companies posting job offers for clients. If that isn't your preference, Jobspotting allows you to filter them out of your feed. Why not have a look at jobs in another country to compare and contrast opportunities. Just use the Explore tab.