Job Description: Key Responsibilities Produce compliant High Level Design (HLD) documents for existing services. Produce supporting Low Level Design (LLD) documentation. Develop Business Process Guides and operational documentation. Conduct interviews and workshops with SMEs and Customer to capture current service architectures and processes. Ensure documentation accurately reflects existing service delivery and support models. Apply Secure by Design principles within documentation where appropriate. Support review, assurance and governance activities, addressing comments from the Technical Design Office and other stakeholders. Essential Experience Demonstrable experience authoring technical documentation. Proven experience producing or contributing to HLDs, LLDs and process guides. Strong understanding of service architecture and technical design documentation. Ability to rapidly assimilate technical information from SMEs. Excellent written communication and stakeholder engagement skills. Experience working within governance and assurance frameworks. Desirable Experience Understanding of Secure by Design principles and assurance processes. Experience of Digital and Data environments. Experience supporting service transition or onboarding activities. ..... full job details .....