Derek Callaghan is an experienced Systems Engineer at ADT Fire & Security in Norwich, specializing in the pre-site setup, testing, installation, and commissioning of Wi-Fi/IP video analytical CCTV systems and remote IP access control since July 2013. Prior to this role, Derek served as a Service Maintenance Technician at Contract Fire Security, providing 24-hour rapid response services for major clients in the retail and care sectors from March 2012 to June 2013. Additionally, Derek was a Site Engineer at Camwatch JCB/Secure Options, offering rapid deployment CCTV towers for a major utilities client from August 2011 to March 2012. Earlier career positions include a Major Systems Service Engineer at ADT Fire & Security and various engineering roles at 2020 Vision Systems Ltd and Intruder Alarms (Northern Ltd), where Derek began as an apprentice and advanced to senior engineer, overseeing installation, service, and maintenance work across the North East of England.
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