The person using the account is no longer doing engineering tasks on WMF infrastructure, neither is supposed to have write access to WMDE's repositories on Gerrit, hence please remove this user from wmde group.
I have removed the user from all ldap groups related to wikitech/horizon projects. "wmde" seems to be generally the only group remaining (not sure about the "nda" group actually, please advise if you know something about it), according to: https://tools.wmflabs.org/ldap/user/albe
I am Aleksey's line manager at WMDE (which can be verified at https://www.wikimedia.de/wiki/Mitarbeitende).
Hopefully that is enough information need to handle the action requested.