Matis

Matis was a human Starfleet officer in the 23rd century and the chief engineer of the USS Hamilton (NCC-1765).

In 2265, Matis abandoned ship along with the rest the crew when a tachyon based weapons test went wrong and propelled the ship forward in time to the year 2339.

Current Status
Presumably, Matis continued his life in the 23rd century following the loss of the Hamilton and either retired or passed away some time prior to 2339.

Appearances
Entropy's Demise