The Architect is a minor worker at the Umbrella Atlantic Facility in Resident Evil Dead Aim. This architect worked as a worker at this facility.
At some point, he may have worked for Morpheus D. Duvall or at least knows him, as he mentions Morpheus in his file. This architect more than likely oversaw the creation of the underwater missile base in the Atlantic Ocean.
The Architect was also concerned about how the missile base would be used as he comments that Morpheus tends to go too far after the Raccoon City Incident.
The fate of the Architect is unknown, although it is possible that he was one of the zombies that became infected with the T-Virus at the facility, and was killed by Morpheus or survived and was currently not at the facility at the time of the outbreak.
The Architect left a memo in one of the rooms, which was found by Bruce McGivern whilst he searched the facility.