Security Architect – Critical Infra Leader (Hybrid)

Atos SE; United States; Hybrid; USD 113,227 - 146,529; Full time

Benefits offered by this job

Pension (matched 10%)

Private medical cover

Income protection

Life assurance

25 days annual leave + holidays

Flex benefits

Job summary

Atos is seeking a Security Architect to embed security by design across major UK infrastructure programmes. You will lead security architecture, risk assessments and threat modelling across multi-stakeholder projects, ensuring compliance with policies and industry standards.

Based in Birmingham with hybrid working, the role offers opportunities to influence security strategy, mentor engineers, and deliver secure outcomes across the enterprise while collaborating with business leaders and

Qualifications

• Significant experience in Information Security, Cyber Security Architecture or Solution Architecture.
• Experience designing secure enterprise, cloud and hybrid environments.
• Experience performing threat modelling and security risk assessments.
• Excellent stakeholder management and communication skills.
• Experience within regulated industries (Government, Critical National Infrastructure, Financial Services, Healthcare etc.).
• Knowledge of OT/ICS security environments.
• Experience supporting bids, proposals and customer engagements.

Responsibilities

• Develop and maintain security architectures, patterns, standards and reference designs.
• Review and assure solution designs for security policy compliance and security-by-design principles.
• Produce and review High-Level Designs (HLDs).
• Ensure solutions align with enterprise architecture and risk strategy.
• Conduct threat modelling using STRIDE/MITRE ATT&CK.
• Perform security risk assessments for new and existing services.
• Identify vulnerabilities and plan mitigations.
• Support risk management processes and risk-based decision making.
• Act as security authority within architecture review boards and governance forums.
• Define and maintain security standards, controls and architecture principles.
• Review and approve architecture exceptions.
• Ensure compliance with regulations and industry frameworks.
• Support development of security strategy and roadmaps.
• Identify opportunities to improve security capability and resilience.
• Contribute to long-term security transformation initiatives.
• Collaborate with business leaders, delivery teams and suppliers.
• Translate security concepts into business-focused recommendations.
• Act as trusted advisor on security architecture and cyber risk.
• Provide architectural support during security incidents and major service disruptions.
• Assist with root cause analyses and remediation.
• Promote security awareness and best practices across teams.
• Lead and mentor architects and engineers.

Skills

Information Security

Cyber Security Architecture

Solution Architecture

Enterprise Security Design

Threat Modelling

Risk Assessments

Stakeholder Management

Regulated Industries

OT/ICS Security

Bid Support

Job description

Atos is seeking a Security Architect to embed security by design across major UK infrastructure programmes. You will lead security architecture, risk assessments and threat modelling across multi-stakeholder projects, ensuring compliance with policies and industry standards.

Based in Birmingham with hybrid working, the role offers opportunities to influence security strategy, mentor engineers, and deliver secure outcomes across the enterprise while collaborating with business leaders and