Lead IT Enterprise Architect – London at Harvey Nash, City Of London, £Contract Rate

Lead IT Enterprise Architect – London

6 Months

£650-700 Outside IR35

Lead IT Enterprise Architect required for a leading client based in London. This is a pivotal role leading the enterprise architecture strategy for a large-scale OSS/BSS transformation programme within a major UK telecommunications organisation.

You will be embedded within the Global Systems Integrator (GSI) delivery team, operating as the lead architecture authority while maintaining accountability to the end-client sponsor. The successful candidate will play a critical role in balancing the sponsor's long-term strategic objectives with the realities of programme delivery and vendor constraints.

Key Responsibilities:

• Define and govern the end-to-end enterprise architecture across the OSS/BSS landscape, ensuring alignment with the sponsor's strategic vision while supporting successful programme delivery.
• Establish architecture principles, standards, and governance frameworks that guide solution design and implementation whilst protecting the organisation's long-term technology capabilities.
• Identify, assess, and manage architectural risks, technical debt, integration dependencies, and transformation challenges, providing transparent and objective guidance to the client sponsor.
• Act as a trusted advisor to senior stakeholders, ensuring architectural decisions support both immediate programme objectives and future business outcomes.
• Provide independent architectural leadership where competing priorities exist between customer strategy and vendor delivery considerations.
• Extensive experience in Enterprise Architecture within telecommunications, managed services, or large-scale business and technology transformation programmes.
• Strong hands-on knowledge of OSS/BSS domains, including Billing, CRM, Order Management, Service Assurance, Inventory Management, and Fulfilment.
• Proven experience managing architecture relationships across multiple vendors, systems integrators, and delivery partners within outcome-based engagements.

Interested? Please submit your updated CV to Dean Sadler-Parkes at Harvey Nash for immediate consideration.