Cyber Security Architecture Manager - Contract Day Rate

Telefonica Tech; Cambridge; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology company is seeking a Cyber Security Architecture Manager in Cambridge, UK. The role focuses on leading secure-by-design practices across IT and OT environments with an emphasis on Critical National Infrastructure. Ideal candidates should have experience in cyber security, a degree-level qualification, and relevant certifications. This contract position offers 1-2 days on-site work per week and may lead to an extension.

Qualifications

• Proven experience within Critical National Infrastructure (CNI) – ideally Utilities.
• Deep knowledge of cloud security and modern IT architecture.
• Understanding of NIS, GDPR, and Privacy by Design.

Responsibilities

• Shape and govern security architecture across the organization.
• Maintain the cyber security technology roadmap.
• Work closely with Architects and project teams for compliance.

Skills

Critical National Infrastructure (CNI)

IT and OT cyber security

Cloud security

Stakeholder influence

Strategic thinking

Education

Degree-level qualification or equivalent

Relevant cyber certifications (CISM, CISSP, Security+)

Job description

Job Description

3-month Contract (Inside IR35) - Possible Extension

1-2 Days On-Site Weekly - East Midlands

Experience in Critical National Infrastructure (Utilities) is Essential

Telefónica Tech is seeking an experienced Cyber Security Architecture Manager to lead secure‑by‑design practices across both IT and OT environments within our complex, highly regulated customer. This role is critical in strengthening cyber resilience, driving technology roadmaps, and ensuring compliance with cyber, privacy, and regulatory obligations.

1-2 days per week on-site.

Role Overview

You will be responsible for shaping, governing and assuring security architecture across the organisation. This includes maintaining the cyber security technology roadmap, reviewing solution designs, identifying risks, and ensuring alignment to corporate standards, policies, and regulatory frameworks.

You will work closely with Enterprise, Solution, and Platform Architects, alongside operational and project teams, to ensure all technology across IT and OT is secure, compliant, and aligned with wider business strategy.

Key Responsibilities

• Security Architecture & Roadmaps
• Solution Assurance
• Strategy, Governance & Vendor Engagement
• Leadership

Qualifications

Essential Experience & Qualifications

• Proven experience within Critical National Infrastructure (CNI) – ideally Utilities
• Strong background in both IT and OT cyber security
• Degree‑level qualification or equivalent
• Relevant cyber certifications (e.g., CISM, CISSP, Security+)
• Deep knowledge of cloud security and modern IT architecture
• Understanding of NIS, GDPR, Privacy by Design and Secure by Design
• Experience influencing senior stakeholders and driving security improvements
• Detail‑focused, strategic, calm under pressure, and adept at translating technical risk into business impact

Desirable:

• Experience with TOGAF, Zachman or similar architecture frameworks
• Background as an IT or OT Architect
• Critical National Infrastructure (Utilities) experience or understanding of OT operational challenges

Additional Information

At 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.

We don't believe hiring is a tick‑box exercise, so if you feel that you don't match the job description 100%, but would still be a great fit for the role, please get in touch.