PSI AG is an established software provider mainly active in the civil engineering, logistics, and IT verticals. Headquarters are located in Berlin, Germany.
At this point, Help Desk, Accountancy, and Information Technology are frequently searched for professions at PSI AG. They recruit for offices in Aschaffenburg, Aschaffenburg, Berlin and 2 other locations. See below for a list of 8 unique open positions at PSI AG, such as "Proposal Writer" and "Customer Service - Community Outreach".
Wikipedia provides a useful article about PSI AG. Check out their social profile on Facebook for a different perspective. For specific positions and prospects at the company, here's PSI AG's careers page.