This is just an unsorted, unfiltered list of current tasks and services all over the AEI (and beyond) which could be counted as SYSOP-related. It is neither complete nor pretty.
multiple redmine (rails) instances across the AEI (probably all on different versions due to different requirements. Not all managed by apt). These have to be maintained and customised to suit the different requirements of their users.
gitorious (gitmaster.atlas) also a rails-app as a main git-hub for the institue and beyond has to be kept up to date, lots of minor (non-breaking) bugs or feature requests etc. Also the users of git/gitorious in particular require lots of support from time to time.
Maintenance and continuous extending of other (ruby and) rails-services AtlasDB, Studenthours, parts of our monitoring, the E-Werkstatt app, ltpda_rails, ltpda_api etc.
Researching for new tools/technologies that can be incorporated into the workflow (alternatives to current apps like gitlab or new technologies like docker etc.)
Mac/OSX support for lots of people since IT is specialised on Win and/or Linux servers (not really sysops still part of the whole user<->service/app interaction)