well, in developing games you are problem-solving... so you could present some graphical puzzles for the player.. maybe some flow charts.. or design "architecture"? For example in all the LEGO title games (specifically LEGO Marvel) how you have to figure out how to "hack" computers by turning a succession of knobs the correct way to get the flow working.
some other mini-game ideas:
-make a player do some software "bug fixing".. which you could make into a "wack a mole" game with "bugs"
-make a "time management" type of mini game where you have to run around an office giving all the members of the dev team support... your programmers demand redbull and sugary treats while they code, your technical directors expect status reports while they sit at their desks "working"....things like that.. and if they don't get what they want the programmers start complaining and write bad code, the directors yell and are unhappy.. and based on the overall morale, it determines the rating of the game they make..which effects it's revenue etc...
just some ideas..