Microshift levers with Ultegra brakes
I believe all drop-bar road bike brake levers designed for caliper brakes use the same cable pull ratio, so yes you can fit Ultegra calipers.

Personal opinion follows ...

I'm not a fan of installing individual components of a level many steps up from the rest of the components on a bike. You may not see the full performance benefits of the high-level calipers because the lower level Microshift levers will be the limiting factor.

The Felt F95 has no-brand calipers I believe (at least the 2017 does, your link to Wiggle does not work), so even Claris or Sora level are going to be better. You may as well save a little money.