Warren was admitted as a Solicitor in 1993 having completed articles with a Liverpool based commercial firm. He joined Carpenters in 2001 having spent 8 years with a defendant personal injury litigation practice.

Warren specialises in personal injury litigation and in particular low velocity accident cases, fatal accidents and cases involving complex legal/factual issues acting for both claimants and defendants insurers. Warren was promoted to the role of Technical Director within the firm in June 2010.