Middle-aged, male, computer architecture designer, standing, confident posture, black-rimmed glasses, short brown hair, slight stubble, white shirt, dark blue tie, formal black pants, black leather shoes, holding a tablet, in front of a large whiteboard, filled with complex diagrams and equations, modern office interior, fluorescent lighting, wooden desk, ergonomic chair, surrounded by rows of servers and computer towers, subtle steam punk elements, warm and soft ambient lighting, 3/4 composition.