Relief Security Officer – Derby, Burton, Nottingham Location: Covering Derby, Burton, Nottingham, Network Rail -Derby, Mercia House We offer Contract for 8 hours per week however you'll be required to work more hours based on business needs Shifts: Days, nights, weekends – covering holidays, sick leave, and last-minute absences About the Role We're looking for a professional and flexible Relief Security Officer to join our team supporting operations in Derby, Burton. This role plays a key part in maintaining a safe, secure environment across the Derby, Burton area by covering shifts at short notice, including weekends and nights. As part of a trusted Mitie team, you'll be protecting people, property, and infrastructure. Key Responsibilities Deliver effective security across Network Rail and other Derby, Burton sites in line with Assignment Instructions (AIs) Remain alert and respond promptly to incidents, risks, and emergencies Maintain clear and accurate incident logs and follow escalation protocols Operate security systems and contribute to a safe, compliant workplace Represent the security team with professionalism and integrity at all times What You'll Need Valid SIA Licence Previous experience in a security role Strong awareness and decision-making under pressure Excellent communication and interpersonal skills Flexibility – availability at short notice, including weekends and night shifts This role is ideal for a security professional who values variety and is ready to step up when needed most. Join our team at Mitie and help keep Network Rail and Derby, Burton area safe and secure – apply today!