Invoin is an agency for recruitment services for the IT sector. Job offers listed on Jobspotting are typically posted for a client of theirs.
In terms of recruitment areas, Invoin is primarily seeking professionals in the categories Software Development, Data Analysis, and Financial Data Analysis. They recruit for offices in Madrid, Granada, Berlin and 2 other locations within Germany. On Jobspotting, you can find 14 vacancies from Invoin, for example "Business Developer RIO,Spain" and "Administrador Backup (Netbackup), Madrid".
On the web, the company is represented on Twitter and Google Plus, among others. A resource not to neglect is the company's careers page with more details about vacancies and career prospects.