At the age of 15, Darren commenced his museum career as a volunteer at the Herbert Art Gallery and Museum in Coventry. After studying for a postgraduate diploma in Insect Taxonomy at Cardiff University, Darren joined the staff at National Museum Wales in Cardiff as an entomological researcher. In 1997 Darren began working in the Hope Entomological Collections as a technician, later becoming Collections Manager and Assistant Curator. After the amalgamation of the Zoology and Hope Entomology Collections, he took on the role of head of section. Darren has provided training in entomological collections management, integrated pest management, insect identification and entomological field sampling techniques for undergraduate and postgraduate students, the museum sector and wider.
Darren is the National Recording Scheme Organiser for the Scarabaeoidea (dung beetles, chafer and their allies). He is on the editorial panel for The Coleopterists, Entomologists Monthly Magazine and is a Royal Entomological Society Library Committee member. He was awarded the ZSL Silver Medal (2015).