Lead Solutions Architect (Legacy to Cloud) in Coventry, United Kingdom

Salary: £? - ? per year Requirements:

• Active SC clearance is required.
• Proven experience as an architect on large-scale legacy data centre exit, application migration, or cloud transition programmes, including defining migration mechanisms, patterns, sequencing, and cutover approaches.
• Strong architectural knowledge of legacy on-premise hosting and migration into cloud or other target hosting environments; this is a migration architecture role rather than a greenfield cloud service design role.
• Experience with legacy technologies such as Java, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL, and GEN; deep expertise across every listed technology is not required.
• Experience defining migration approaches and leading technical teams through discovery, design, and cutover.
• Strong understanding of platform-level requirements, including networking, IAM and security, access patterns, storage, resilience, and monitoring.
• Ability to manage complex technical dependencies and coordinate multiple engineering teams.
• Excellent communication and stakeholder engagement skills, including working with senior client SMEs and multi-supplier delivery teams.
• Experience working within architectural governance and programme-level technical controls.

• Own the architectural direction for all applications and components within the assigned workstream, ensuring alignment with programme standards and target platform patterns.
• Act as the workstreams point of technical decision-making and design governance.
• Provide leadership to architects and ensure technical clarity and consistency across teams.
• Ensure complete and accurate discovery of all services in the workstream.
• Consolidate discovery findings into a workstream-wide view of architecture, dependencies, integrations, and constraints.
• Validate assumptions, identify gaps, and ensure discovery findings inform migration design.
• Work with the Lead Platform Architect to define each services migration approach, such as re-hosting, re-platforming, relocating, or uplifting.
• Ensure migration designs reflect security requirements, target platform constraints, network patterns, IAM, storage, monitoring, and operational readiness.
• Oversee the creation and quality assurance of migration design documentation for each application.
• Identify, document, and manage cross-application dependencies within and across workstreams.
• Work with delivery management to define sequencing, align migration windows, and ensure readiness across components.
• Coordinate with cloud engineers, target hosting SMEs, security and network teams, and platform engineering groups to ensure migration readiness.
• Engage with legacy SMEs, including those working with Oracle, WebLogic, IIS, AIX, Solaris, COBOL, and GEN, to understand constraints and required remediation.
• Provide technical oversight during migration execution and cutover events.
• Support troubleshooting and issue resolution across the workstream during execution.
• Ensure services meet cutover readiness, rollback planning, and operational acceptance criteria.
• Represent the workstream in architectural and technical governance forums.
• Manage workstream-level technical risks, issues, decisions, and assumptions.
• Provide clear, concise technical updates to programme leadership.

• Architect
• Cloud
• COBOL
• IAM
• Support
• Java
• Linux
• Network
• Oracle
• Security
• Windows

More:

We are seeking experienced Solutions Architects to provide end-to-end technical leadership across workstreams in a large-scale legacy-to-cloud migration programme for a large, complex organisation. The programme will migrate a diverse estate from legacy data centres to cloud and other target hosting environments. This is a six-month contract, with scope to extend, paying £500–£800 per day inside IR35. The role is predominantly remote, with occasional travel and possible weekend work for planned deployment and cutover activity.

last updated 44 week of 2026