Job Description

Job Title: Zero Trust Network Access (ZTNA) Delivery Lead Location: Hybrid 2 days onsite/week (Cambridge/ Peterborough)Type: ContractOverview We are seeking an experienced Zero Trust Network Access (ZTNA) Delivery Lead to drive the development and execution of a large-scale Zero Trust transformation programme within a complex, global enterprise environment. This role will be responsible for defining the Zero Trust strategy, owning the target-state architecture, developing a scalable implementation blueprint, and leading delivery across multiple business units operating within a federated technology landscape. The successful candidate will combine strong cyber security expertise with enterprise architecture knowledge, programme leadership experience, and exceptional stakeholder management skills.Key Responsibilities Zero Trust Strategy & Roadmap

• Define and lead the enterprise-wide Zero Trust strategy aligned to business and cyber security objectives.
• Develop a multi-year roadmap covering identity, device, network, application, and data security domains.
• Establish adoption priorities, milestones, dependencies, and success measures.
• Present recommendations and secure executive-level approval and sponsorship.

• Own and maintain the target-state Zero Trust architecture.
• Develop scalable reference architectures, implementation standards, governance models, and security controls.
• Ensure alignment between Zero Trust principles and wider cyber security and technology strategies.
• Continuously enhance architectural standards based on emerging requirements, lessons learned, and technology developments.

• Lead end-to-end delivery of the Zero Trust workstream from strategy through implementation and operational handover.
• Define programme scope, outcomes, timelines, budgets, risks, and dependencies.
• Establish governance structures and deliver regular executive reporting.
• Manage third-party vendors and delivery partners, ensuring performance against agreed outcomes.

• Work closely with security, architecture, infrastructure, and technology teams to drive successful implementation.
• Build strong relationships with senior stakeholders across multiple business units.
• Influence decision-making at executive level and drive alignment across competing priorities.
• Support change management, communications, and business adoption activities.

• Partner with Identity, Security Engineering, Architecture, and Technology teams to ensure successful delivery.
• Manage dependencies across identity transformation, endpoint security, cloud security, network modernisation, and workplace transformation initiatives.
• Ensure a coordinated approach across all related programmes and workstreams.

• Proven experience leading enterprise-scale Zero Trust transformation programmes.
• Demonstrated success defining and delivering Zero Trust strategies, architectures, and implementation roadmaps.
• Experience leading complex cyber security or technology programmes across global organisations.
• Strong track record of managing budgets, vendors, governance frameworks, and delivery teams.
• Experience influencing executive stakeholders and steering committees.
• Previous experience operating within federated or decentralised organisational environments.

• Zero Trust Architecture
• Identity and Access Management
• Conditional Access
• Privileged Access Management
• Endpoint Security
• Device Compliance
• ZTNA and Secure Access technologies
• Cloud Security Architecture
• Enterprise Security Governance

• Microsoft Entra ID
• Conditional Access
• Privileged Identity Management (PIM)
• Microsoft Defender Suite
• Microsoft Intune
• Zscaler or equivalent ZTNA platforms

• Degree in Cyber Security, Computer Science, Information Technology, Engineering, or equivalent experience.
• One or more of the following certifications:
  • CISSP
  • CISM
  • TOGAF
  • SABSA
  • Microsoft SC-100

• PRINCE2 Practitioner
• MSP (Managing Successful Programmes)
• SABSA Chartered Security Architect
• Membership of ISACA, (ISC) , CIISec, or BCS

• Strategic thinker with strong delivery focus.
• Excellent executive stakeholder management and communication skills.
• Ability to translate complex security concepts into practical business outcomes.
• Strong programme governance and organisational skills.
• Comfortable operating in complex, global environments with multiple stakeholders and competing priorities.
• Ability to balance architectural integrity with pragmatic delivery requirements.

• Led a Zero Trust programme from strategy through implementation.
• Strong Microsoft Security ecosystem experience (Entra ID, Conditional Access, Intune, Defender).
• Experience with Zscaler or equivalent ZTNA technologies.
• Enterprise architecture and roadmap ownership experience.
• Large-scale cyber transformation delivery background.
• Executive-level stakeholder engagement experience.
• Experience driving adoption across multiple business units or divisions.