Clint began his career when he joined Royal Dutch Shell at their Stanlow complex as an Apprentice in Instrumentation and Process Control.  After ten years in Engineering Maintenance and Construction Clint moved into Training, taking charge of Apprenticeship provision. 

In 1988 Clint moved to the Netherlands where he took a position as Lecturer and Laboratory Manager in Shell's Group Training Centre. He later returned to the Stanlow complex in 1993 and by 1995 had become the Site Learning and Development Manager. In his final years with Shell Clint worked in Leadership Development being principally responsible for the roll out of a Leadership Development project across Europe for all classes of business.  In his final job roles with Shell, Clint travelled extensively working for short periods in many of Shell's manufacturing sites around the world.

Clint studied during his career becoming a Master of Science in Managing Human Resources and Training with the University Of Leicester.