Interim Chief Information Security Officer in England
Interim Chief Information Security Officer

Interim Chief Information Security Officer in England

England Temporary 72000 - 108000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Lead network security for a high-stakes UK Defence project, ensuring robust protection of sensitive assets.
  • Company: Join a dynamic team focused on classified network security initiatives.
  • Benefits: Competitive contract terms, hybrid work model, and potential for extension.
  • Why this job: Make a real impact in national security while advancing your career in a critical role.
  • Qualifications: 10+ years in senior information security roles with expertise in network security technologies.
  • Other info: Active security clearance required; ideal for those passionate about cyber defence.

The predicted salary is between 72000 - 108000 £ per year.

Interim Chief Information Security Officer required for a high-stakes classified UK Defence project. This role leads the Network Security initiative, ensuring robust protection of sensitive assets in a secure environment. Reporting directly to the Chief Information Officer (CIO), you will drive security strategy, compliance, and risk mitigation to safeguard mission-critical operations.

Key Responsibilities

  • Lead the design, implementation, and oversight of Network Security architecture for classified systems, including firewalls, intrusion detection/prevention, encryption protocols, and secure access controls.
  • Conduct risk assessments, vulnerability management, and incident response planning tailored to defence-grade threats, ensuring alignment with NCSC and CPNI standards.
  • Collaborate with cross-functional teams (engineering, ops, intel) to integrate security-by-design into project deliverables, focusing on zero-trust models and SASE frameworks.
  • Advise the CIO on emerging cyber threats, regulatory changes and strategic security enhancements to maintain project integrity.
  • Oversee compliance audits, security clearances for team members, and reporting on security metrics to senior stakeholders.
  • Manage third-party vendor security risks and ensure all protocols meet classified information handling requirements.
  • Drive rapid incident resolution and post-event analysis to minimise downtime in high-sensitivity operations.

Requirements / Qualifications

  • Active Enhanced Developed Vetting (eDV) preferred. Minimum active Developed Vetting (DV).
  • 10+ years in Senior Information Security Roles, with proven leadership in UK Defence or Intelligence Community projects.
  • Expertise in Network Security technologies (e.g., PKI, cryptography, secure cloud architectures on AWS/Azure/GCP with defence integrations).
  • Strong background in classified environments.
  • Demonstrable experience leading security teams on time-bound projects, with a track record of delivering under pressure.
  • Professional certifications: CISSP, CISM, or equivalent; NCSC/CLAS consultancy experience highly desirable.
  • Offensive cyber/red teaming knowledge (CHECK/CREST/Tiger Scheme).
  • Experience with SOC operations, threat intelligence, or DevSecOps in secure-by-design pipelines.
  • Familiarity with defence primes (e.g., BAE, QinetiQ) and framework agreements.

Contract Type: Interim/Contract (12-18 months initial, high likelihood of extension) - Outside IR35

Location: UK Hybrid

If interested, please send your most recent CV to the recruiter to discuss the role in more detail.

Interim Chief Information Security Officer in England employer: iO Associates

As an Interim Chief Information Security Officer with us, you will be at the forefront of a critical UK Defence project, working in a dynamic and secure environment that prioritises innovation and excellence. Our company fosters a collaborative work culture, offering extensive opportunities for professional growth and development, while ensuring that our employees are equipped with the latest tools and resources to tackle high-stakes challenges. Join us to make a meaningful impact in safeguarding national security, all while enjoying the flexibility of a hybrid work model.
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Contact Detail:

iO Associates Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Interim Chief Information Security Officer in England

✨Tip Number 1

Network, network, network! Reach out to your connections in the defence and security sectors. A personal introduction can make all the difference when you're aiming for a high-stakes role like this.

✨Tip Number 2

Don’t just wait for job postings; be proactive! Research companies that align with your expertise in Network Security and reach out directly. Show them why you’re the perfect fit for their team.

✨Tip Number 3

Prepare for interviews by brushing up on the latest trends in cyber threats and compliance standards. Being able to discuss these topics confidently will set you apart from other candidates.

✨Tip Number 4

Finally, apply through our website! We’ve got a range of opportunities that might just be the perfect match for your skills. Plus, it’s a great way to get noticed by our hiring team.

We think you need these skills to ace Interim Chief Information Security Officer in England

Network Security Architecture
Firewalls
Intrusion Detection/Prevention
Encryption Protocols
Secure Access Controls
Risk Assessments
Vulnerability Management
Incident Response Planning
NCSC Standards
CPNI Standards
Zero-Trust Models
SASE Frameworks
CISSP Certification
CISM Certification
Offensive Cyber/Red Teaming Knowledge

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the role of Interim Chief Information Security Officer. Highlight your experience in network security, compliance, and risk management, especially in classified environments. We want to see how your skills align with the job description!

Showcase Relevant Experience: When writing your application, focus on your 10+ years in senior information security roles. Share specific examples of projects you've led, particularly those related to UK Defence or Intelligence Community. This will help us see your proven leadership in action.

Highlight Certifications: Don’t forget to mention your professional certifications like CISSP or CISM. If you have NCSC/CLAS consultancy experience, make sure it stands out! These credentials are key for us in assessing your fit for the role.

Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss any important updates. Plus, we love seeing applications come directly from our site!

How to prepare for a job interview at iO Associates

✨Know Your Cybersecurity Stuff

Make sure you brush up on the latest trends in network security, especially those relevant to classified environments. Be ready to discuss specific technologies like firewalls, encryption protocols, and zero-trust models, as these will likely come up during your chat.

✨Showcase Your Leadership Experience

Since this role requires strong leadership skills, prepare examples of how you've successfully led security teams in high-pressure situations. Highlight any time-bound projects you've managed, especially in defence or intelligence settings.

✨Understand the Compliance Landscape

Familiarise yourself with NCSC and CPNI standards, as well as any relevant compliance audits you've conducted. Being able to discuss how you've ensured compliance in past roles will demonstrate your fit for this position.

✨Prepare for Scenario-Based Questions

Expect questions that assess your incident response planning and risk assessment strategies. Think through some scenarios where you've had to resolve security incidents quickly and effectively, and be ready to share those experiences.

Interim Chief Information Security Officer in England
iO Associates
Location: England
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  • Interim Chief Information Security Officer in England

    England
    Temporary
    72000 - 108000 £ / year (est.)
  • I

    iO Associates

    50-100
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