The Faceless is being compared to Obscura and Necrophagist mostly, I assume you know Obscura but what about Necrophagist?
Also, a band which probably matches both your requests is Origin. I only know their latest album Entity, but it is generally accepted that Antithesis is somewhat better while being very similiar in style. It's essentially technical/brutal death metal with generally short songs (on Entity, there is one 7 minutes long song, the rest are between 1 and 5 mins) and large focus on both brutality and technicality, however the band isn't subtle at all so don't expect Obscura-like musicianship and creativity there.