noun

• (historical) A member of the Soviet apparat; a Communist bureaucrat or agent.
  "Whether conservatively toeing their Marx or boldly advocating such heretical Western-style reforms as the primacy of profits, every important planner, apparatchik and economist in Russia is caught up in Communism's greatest debate since Stalin set backward Russia on its cruel-but successful-forced march into the 20th century industrial world."
• (by extension) A blindly loyal bureaucrat.
  "Mr. Gonzales came across as a dull-witted apparatchik incapable of running one of the most important departments in the executive branch. […] He delegated responsibility for purging their ranks to an inexperienced and incompetent assistant who, if that’s possible, was even more of a plodding apparatchik."