OSM Migration Service Lead

Location: Chilton Trinity

Job Description:

About DXC Technology DXC Technology is a Fortune 500 global technology services company delivering mission-critical solutions across more than 130,000 professionals worldwide. With over 40 years' presence in the UK, DXC has recently established its Aerospace and Defence Hub in Farnborough, consolidating operations in the heart of the UK's aviation, engineering and technology sector. We deliver enterprise technology solutions that help government agencies, defence organisations and commercial entities modernise operations, migrate legacy systems, and transform service delivery.

About the Role The OSM Migration Service Lead is a senior technical leadership position responsible for designing, planning, executing and managing large-scale operational services migrations for defence and aerospace clients. You will lead cross-functional teams through complex infrastructure and application migrations, ensuring minimal business disruption whilst maintaining the highest standards of security, compliance and service continuity. This role requires exceptional technical expertise combined with strong programme management discipline and customer leadership.

Key Responsibilities Migration Programme Leadership Lead end-to-end planning, execution and management of complex operational services migrations across defence and aerospace environments Develop comprehensive migration strategies, roadmaps and execution plans aligned with customer objectives and security requirements Manage migration timelines, budgets, resources and risks, ensuring on-time and on-budget delivery Establish and maintain governance structures, including steering committees, work streams and escalation protocols Conduct thorough business impact assessments and define migration success criteria aligned to customer priorities Serve as the primary point of contact between the customer and the service provider, ensuring alignment of IT services with business objectives and contractual obligations.

Technical Architecture & Design Design target-state operational architectures incorporating modern IT infrastructure, cloud services and integrated systems Evaluate migration approaches (phased, big-bang, hybrid) and recommend optimal strategies based on risk, timeline and cost factors Ensure migrated services meet security requirements including MOD Classification Guides, ITAR and defence security standards Lead technical design reviews and validation testing to ensure data integrity, system performance and operational readiness Document architecture decisions, migration methodologies and operational procedures for knowledge transfer and continuity Team & Resource Management Lead, mentor and develop technical migration teams including engineers, architects, DBAs and infrastructure specialists Manage resource allocation, onboarding of cleared personnel and coordination across multiple work streams Engage third-party vendors and subcontractors, managing SLAs and quality deliverables Foster a culture of accountability, technical excellence and continuous improvement within the migration team Customer & Stakeholder Management Serve as primary technical authority and trusted advisor to senior customer stakeholders throughout the migration lifecycle Provide regular executive-level reporting on migration progress, risks, issues and resolutions Manage customer expectations, communications and change management throughout the migration journey Lead technical workshops, design sessions and validation activities with customer technical teams Risk & Quality Management Identify, assess and actively manage migration risks, developing mitigation strategies and contingency plans Establish quality assurance frameworks, testing protocols and validation procedures to ensure customer satisfaction Ensure compliance with security vetting requirements, personnel security policies and defence contractor obligations Manage incidents, issues and change requests during migration phases, ensuring rapid resolution Conduct post-migration reviews and lessons learned sessions to drive continuous improvement Support audit and compliance activities, maintaining…