So, let me be honest: my employer doesn't want me to spend time on getting some descent wireframes and design for the backend of our website. So, I need someone that helps me converting my sketches to a descent wireframe freely. And when done, I can go back to my employer and convince them to spend more time on this.
When it's about wireframes, it's primarly about how grids should look like and how an ordering form should look like. Perhaps header too, but that's about it. Bootstrap-styled.