CamelCase is built in to Plover! [1] symbols work too - they might have less intuitive memorisation, but you don't use that many anyway (unless you're in APL...but that doesn't work with normal keyboards either).
You can set up Vim-like navigation e.t.c. too (e.g. [2]), for moving about in code. I haven't tried it.
I think however that the benefits of coding with Plover aren't really great enough to justify the huge struggle it would be to get proficient with it.
Switching modes requires an extra chord. Movement in your editor now takes chords with a bunch of keys instead of 2. Steno is really flexible, but when you try to shoehorn it into situations where it's not good at the average chords per character typed.