Chief Technical Architect in London

Job DescriptionChief Technical Architect

Lead the technical strategy for a high-impact account and shape resilient, secure, and scalable cloud solutions. This is a senior leadership role where you\’ll act as the trusted advisor to clients while driving architecture, innovation, and service excellence.

Key Responsibilities

Define architecture strategy for availability, resilience, scalability, and disaster recovery

Ensure uptime, performance, and service reliability targets are met

Lead major incident resolution and root cause analysis

Act as senior technical advisor to client stakeholders

Translate business needs into secure, compliant technology solutions

Govern architecture standards (e.g. TOGAF) and solution design quality

Oversee transformations, migrations, and platform modernisation

Support presales, bids, and solution design with commercially viable approaches

Lead and mentor multi-disciplinary technical teams (cloud, infrastructure, networking, security)

Requirements

Proven experience as a senior architect or technical authority

Strong expertise in public and private cloud (Azure, IaaS, networking, security)

Experience with enterprise architecture and governance frameworks

Knowledge of healthcare IT and regulatory standards (e.g. NHS environments)

Strong stakeholder management and communication skills

Experience with technologies such as Azure, VMware, Cisco, Fortinet, HPE, or Pure

Work on high-impact, enterprise-scale projects

Opportunity to shape technical strategy and innovation

Collaborative and supportive team environment

Ongoing professional development and certifications

Location: UK – Flexibility to travel to client and London HQ (Walkie Talkie) when required

Additional InformationAt Telefónica Tech, we believe inclusion is the bridge that empowers everyone to be their authentic selves. We celebrate and respect our differences because diversity drives innovation and makes us stronger. Be yourself with us, and feel that you belong.

We welcome applicants from all backgrounds and identities regardless of age, disability, gender reassignment, marital or civil partnership status, pregnancy or maternity, race, religion or belief, sex, and sexual orientation. We are also committed to equity, accessible hiring practices, and creating an inclusive culture through many means including TogetHer (Women\’s network) and our Employee Resource Groups which include Diversity and Inclusion, Telefónica Tech Pride, Neurodiversity, ELEVATE (African and Caribbean heritage network), and Sustainability.

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