develop a dissector with an intelij?

Probably.

Whichever IDE you use will have to have some method for examining the Wireshark sources to create the auto-complete lists, and as most of the WS sources are for other dissectors which you generally aren't interested in (they're useful as examples but you won't generally be calling functions in them), not much of that will be helpful.

If you're brave, and like to live on the bleeding edge, building on the Windows platform can now use CMake to generate Visual Studio solution files and then edit away in the IDE. Even with that, I still work on the dissectors I maintain with a text editor as I've done for the last decade and a bit. Note that I use VS for the day job, so I'm not anti-IDE, I just don't find it useful for WS dev.

Dissector writing is mostly defining hf entries and a big switch statement to dissect the data and call proto_tree_add_item(), adding subtrees where it makes sense. There is also a a bit of boiler plate for registration, maybe some preferences handling, maybe some code for heuristics and maybe some code for reassembly and conversations, but nothing to get too excited about. README.dissector should cover it all and if it doesn't, let us know so we can update it (or even better submit a change).