Messaging Specialist - Interoperability andamp; Email SME +Hybrid working in Corsham months ++Outside IR35+£560 - £600 a day +DV cleared roleKey Skills:+ Technical expertise in Messaging and Interoperability+ DV Clearance We are seeking an experienced Messaging Specialist - Interoperability/Email SME to support Defence Digital at MOD Corsham. This is a mission-critical role delivering secure communications capability within a sensitive defence environment.Key ResponsibilitiesLead technical project delivery within MOD ICS environments.Provide expert input on secure email protocols, routing, and compliance with UK and CCEB policies.Validate technical designs and conduct detailed impact assessments.Develop and supervise test scripts for secure email systems.Monitor Quality of Service (QoS) for live services and make recommendations for improvements.Essential ExperienceDeep understanding of email protocols, secure routing, security labelling, and compliance frameworks.Strong background in testing and quality assurance for email technologies.Proven ability to validate technical designs and assess their operational impact.Experience monitoring live service performance and advising on QoS.