Warwick provides technical writing services through his company, Sprawson Writing & Editing.

Since 2010, Warwick has combined his engineering knowledge and writing ability on some of the largest, most complex tenders in Australia, including the successful bids for the West Gate Tunnel, Metro Tunnel and Caulfield to Dandenong Level Crossing Removal Project. He is known for reliably delivering elegantly written copy – on time – and for remaining cheerful even under pressure.