Interface design for web and mobile products, done by someone who then has to build it. That tends to keep the design honest about what is actually feasible.
What it does, who uses it, and where they currently get stuck. If there is an existing product I will go through it properly first and tell you what I find.
Flows and wireframes come before anything pretty. Getting the structure wrong is the expensive mistake; colour and type are the cheap part to change.
Full screens, with a small system behind them so the design stays consistent as the product grows instead of drifting every time something new gets added.
If you have developers, they get a file they can actually work from. If you would rather not manage that, I build it myself, which removes the handoff entirely.
I am a designer and a developer in Trinidad and Tobago, which mostly means I do not hand over designs that cannot be built. If you need both sides of that on one project, that is the point.
If this sounds like what you need, email me at hi@jaedan.me. Tell me what you are building and roughly when you need it.