兼任

jiānrèn
  1. to hold a concurrent post
  2. part-time; (in academia) adjunct

CEDICT

Entry Composition

1 兼 jiān
  1. double
  2. twice
  3. simultaneous
  4. holding two or more (official) posts at the same time
2 任 rèn
  1. to assign
  2. to appoint
  3. to take up a post
  4. office
  5. responsibility
  6. to let
  7. to allow
  8. to give free rein to
  9. no matter (how, what etc)
  10. classifier for terms served in office, or for spouses, girlfriends etc (as in 前任男友)