Hi,
I've been using the Unity engine for over 2 years and have experience with gameplay programming, UI, inputs, shaders, implementing plugins, data serialization and more. I worked on a match-3 type game that can be seen in my freelancer portfolio. I'm currently working on a 3d jrpg style game, I can send you some samples if you contact me.
I'd like to talk about the specifics of your projects, what type of game it is, what the bugs are and the functions you want to add. Once we talk, I can give you a better timeline for the fixes.
Martin