Security SME in Chester

Responsibilities

• Assess and document the current Network Access Control technology and policy baseline
• Define the targetstate architecture security posture policies and controls for NAC services
• Perform gap assessments between current NAC capabilities and target security requirements
• Design test implement and review enterprisescale Network Access Control solutions
• Provide subject matter expertise and consultancy on Network Security and Cybersecurity matters
• Develop implement and maintain consistent NAC policy models across multiple regions and business functions
• Design and deploy Cisco ISE policies controls integrations and enforcement mechanisms
• Ensure network security solutions align with business requirements risk appetite and regulatory expectations
• Identify infrastructure application control and policy risks and develop appropriate mitigation plans
• Research assess and coordinate with thirdparty vendors supporting Network Security capabilities
• Provide guidance and support to business technology risk audit and cybersecurity stakeholders
• Drive continuous improvement of network security processes governance frameworks controls and operational capabilities
• Track and remediate security findings audit issues control gaps and regulatory recommendations
• Support internal and external audits and regulatory information requests
• Promote collaboration across IT Cybersecurity Risk Audit and business functions
• Develop automation using Python and Gitbased engineering workflows
• Support network security solutions across load balancing DNS Linux virtualization and container platforms
• Communicate security risks technical findings and recommendations to senior management and executive stakeholders
• Support vendor management financial governance resource planning and enterprise security delivery where required

To be successful in this role you should have

• 7 years of SMElevel experience covering Network Engineering and Network Security
• 7 years of handson experience with Network Access Control technologies in large enterprise environments
• Deep expertise in Cisco Identity Services Engine Cisco ISE
• Experience across the complete network security lifecycle including design testing implementation policy certification and controleffectiveness reviews
• Strong understanding of network communication technologies architectures protocols and security controls
• Experience defining NAC policies posture requirements access controls and enforcement models
• Strong understanding of server and application loadbalancing technologies
• Strong Python scripting and coding skills
• Experience using Git and Python networking libraries
• Strong UnixLinux administration and Bash scripting knowledge
• Understanding of VMware OpenShift and virtualization or container platforms
• Strong Cybersecurity Risk Management Governance and Control experience
• Experience analyzing the evolving threat landscape and translating threats into practical security controls
• Strong stakeholder management consultancy communication and influencing skills
• Ability to communicate complex technical information clearly to technical and nontechnical audiences
• Experience working with thirdparty vendors suppliers and security consultants
• Strong analytical thinking complex problemsolving critical thinking and decisionmaking capabilities
• Ability to collaborate across organizational boundaries and work with globally distributed teams
• Understanding of regulatory compliance audit requirements and internal control frameworks
• Cisco CCIE Security CCNP Security CCNP or equivalent certification is highly desirable
• CISSP or equivalent cybersecurity certification is advantageous
• Knowledge of IAM is desirable
• Familiarity with LLMOps MLOps Agentic AI or MCP Servers is beneficial

Skills

Mandatory Skills : Network Security Architecture, Optical Networking testing

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