Head of Security Architecture – Assurance

🕒 May 22

🇬🇧 United Kingdom – Remote

⏰ Full Time

🔴 Lead

👮‍♂️ Cybersecurity / Security Engineer

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Atos

WebsiteLinkedInAll Job Openings

10,000+ employees

🔒 Cybersecurity

IT Services • Cloud • Cybersecurity

Atos is a global leader in digital transformation, providing a wide range of solutions and services across industries. The company specializes in cloud and infrastructure services, digital business platforms, technology consulting, and cybersecurity, with a focus on enhancing user experiences and supporting enterprise digital journeys. Atos is committed to sustainability and innovation, partnering with various organizations to drive digital advancements, such as its role as the official IT partner for the UEFA and the Olympic Games.

📋 Description

• Lead and develop the Security Architecture & Assurance team, setting direction, priorities, and operating standards • Ensure high-quality delivery across architecture reviews, assurance activities, and risk assessments • Build capability across cloud security, application security, and assurance methodologies • Act as the escalation point for complex or high-risk security decisions • Define and enforce secure architecture standards, reference patterns, and mandatory security controls • Review and approve security-relevant designs and major technical changes • Embed security throughout delivery lifecycles rather than as a late-stage control gate • Develop and maintain security standards, architecture principles, and governance frameworks • Drive consistent, risk-aware decision-making and remediation tracking • Identify and assess security risks early within design and delivery processes • Provide pragmatic mitigation strategies balancing security, resilience, cost, and delivery priorities

🎯 Requirements

• Strong knowledge of Azure, Microsoft 365, Dynamics 365, Microsoft Fabric, Windows, and Linux environments • Experience embedding security into application design and software development lifecycles • Working knowledge of AWS, Bottlerocket, and Istio environments • Strong understanding of federated identity and access management, particularly Okta • Broad understanding of enterprise technologies including networking, databases, and email security gateways • Knowledge of AI security frameworks and the ability to conduct security risk assessments for AI and agentic AI systems • Proven experience leading infrastructure and application penetration testing (ITHC), red teaming, purple teaming, and GBEST-style exercises • Strong threat intelligence experience, including collection, analysis, and application to security architecture improvements • Experience producing security risk assessments aligned to ISO 27005

🏖️ Benefits

• 25 days annual paid leave plus national holidays • Pension scheme with contributions matched up to 10% • Private Medical Scheme • Life Assurance • Income Protection • Flexible Benefits Programme • Unlimited learning and development opportunities