GLSL PBR shaders from scratch

Hello and thank you for clicking on this post! We are in search for a GLSL programmer that is able to create PBR shaders. These shaders are the following: Glass, general PBR light, general PBR object shader with diffuse, normal (or bump), color changing option, metallic and roughness (with the ability to receive lights and the ability to add even more detail by another texture besides diffuse, normal, roughness. Shadow receiving and ambient occlusion, ability to have light bounces, global illumination), emissive. The shaders will be tested out in AGK (AppGameKit), PM us for testing. The quality should look like in the attached screenshot.