Senior Systems Security Architect

We are seeking highly experienced Senior Systems Security Architects to support a high-demand delivery environment by embedding security-by-design principles across enterprise initiatives.

This role will provide independent, senior-level cyber security architecture expertise, ensuring that all IT, network, digital, cloud, and AI solutions are aligned to the organisation’s Information Security Strategy.

You will operate across agile and waterfall delivery environments, engaging stakeholders across business and technology to ensure consistent, risk-based security architecture and implementation.

Key Responsibilities

1. Security Architecture & Design

• Define and develop security capability reference architectures aligned to TOGAF and SABSA
  
• Produce and review architecture artefacts:
  • Contextual, conceptual, logical, and physical designs
    
  • Deployment and integration models
    
• Embed security requirements into solution designs for governance forums (e.g., AWC)
  
• Drive security-by-design across IT, Network, Cloud, Digital, and AI initiatives
  

2. Architecture Reviews & Governance

• Conduct reference and solution architecture reviews
  
• Ensure alignment with enterprise security standards
  
• Review design changes and perform security impact assessments
  
• Participate in architecture governance and approval forums
  

3. Technical Security Standards

• Develop and enhance technical security standards and baselines:
  • System and platform lockdown profiles
    
  • Configuration baselines aligned to CIS and NIST
    
• Support delivery of:
  • Lockdown scripts
    
  • Vulnerability scan profiles
    
  • Implementation and rollout documentation
    
  • Architecture presentations
    

4. Security Capability Enablement

• Support end-to-end engineering of security capabilities
  
• Define security operating models and processes
  
• Provide architecture guidance during implementations
  
• Enable adoption of new security capabilities across teams
  

5. Key Initiatives Exposure

• API Security
  
• Cloud Centre of Excellence (multi-cloud, non-Microsoft included)
  
• AI Security and AI-for-Security use cases
  
• Security dashboards and reporting platforms
  
• SOC, Threat Intelligence, and Meta-SOC platforms
  
• Continuous Threat & Exposure Management (CTEM)
  
• Enterprise and domain architecture submissions
  

Requirements

Core Experience

• 8–12+ years in Information Security
  
• 5+ years in a Senior Security Architecture role
  
• Proven experience in large, complex enterprise environments
  
• Experience in telecoms or regulated industries (advantageous)
  

Architecture & Frameworks

• Strong hands-on experience with:
  
  • TOGAF
    
  • SABSA
    
• Ability to develop multi-layered architecture models (business, application, technology, security)
  

Security Expertise

• Enterprise Security Architecture
  
• Cloud Security (IaaS, PaaS, SaaS)
  
• API Security
  
• Identity & Access Management (IAM)
  
• Network & Infrastructure Security
  
• SOC, SIEM, and Threat Intelligence
  
• Vulnerability & Exposure Management
  
• AI Security (preferred)
  

Standards & Best Practices

• CIS Benchmarks
  
• NIST Frameworks
  
• Zero Trust Architecture
  
• Ability to translate frameworks into practical controls and implementations
  

Stakeholder & Delivery Capability

• Strong stakeholder engagement and advisory skills
  
• Experience in architecture governance forums
  
• Ability to work across agile and waterfall teams
  
• Excellent documentation and presentation skills
  

Preferred Certifications

• TOGAF Certified / Practitioner
  
• SABSA Foundation / Practitioner
  
• CISSP, CCSP, or CISM