Create an image of a futuristic robot using advanced technics to build an entire city in a post-apocalyptic world, blending sleek metallic designs with intricate circuitry and glowing power sources.

Create an image showcasing a futuristic robot of anonymous design engrossed in constructing an entire city from ruins in a post-apocalyptic world. This futuristically designed robotic engineer blends sleek metallic elements with complex circuitry and subtly glowing power sources, embodying advanced technologies. It is to show us how this robot revives civilization by using its technical know-how, working tirelessly under gray skies, amidst the remains of shattered buildings. Observe a careful balance between the harsh dystopian backdrop and vibrant sparks of rebirth symbolized by the city under construction.