Cyber Defence Operations Director

Cambridge
8 months ago
Applications closed

Related Jobs

View all jobs

BDO Digital Offensive Security Consultant

BDO Digital Offensive Senior Security Analyst

Director / Head of SOC - Greenfield SOC (Gov.)

QHSE Director

CyberSecurity – Operations Engineer

Lead Penetration Tester

Job overview:

This is an opportunity to lead global Security Operations focused on safeguarding Arm’s digital environment through exemplary threat detection, incident response, and vulnerability management capabilities.

This senior role, reporting directly into the CISO is accountable for driving the strategic direction of Arm’s Detect & Response function, delivering outstanding performance and ensuring we are resilient against an evolving threat landscape! In addition to operations, you will lead cyber crisis management, C-Suite level stress testing, team development, and top-level cybersecurity thought leadership.

 

Responsibilities:

Own and deliver the strategic roadmap for cyber incident and vulnerability detection & response in line with Arm’s threat profile and business objectives. You will guide and develop a high-performing team, driven with context of emerging threats and strategic objectives.

Ensure Threat Intelligence, Proactive Security Testing and Security Analytics functions develop under your leadership to deliver maximum context into the operational team, as well as enabling real time risk validation and actionable security insights.

Continue delivering automation and detection as code for security operations, enabling increased scalability and efficiency. Whilst maximising data insights and intelligence to inform operational and strategic decision making.

Drive collaboration across Arm and external vendors as we embed a shared understanding to deliver our cyber strategies. Provide strategic input and collaborate with IT, Enterprise Security, and business leadership to inform security roadmaps, governance, and operating models.

Maintain a balanced, comprehensive framework of processes, governance, and performance metrics (e.g., SLAs) for operations. Coordinate security testing, audit, governance, and operational reporting.

Champion a culture of continuous learning, training, and professional development across the team, including handling wellbeing and performance for an agile, high-impact environment!

Maintain awareness of internal and external technology development, particularly across emerging AI use, enabling continuous improvement and innovation.

Required skills and experience:

10+ years of experience in a security role focused on the entire threat lifecycle with demonstrated experience designing and implementing Security Operations strategies within a sophisticated enterprise and disparate technological landscape. Demonstrated leadership in high-stress, fast paced operational environments.

Excellent communication skills and ability to convey complex security issues to senior leadership, including the executive committee. Deep understanding of enterprise security domains and how they can be used as a force multiplier for a technology business strategy, with the ability to influence at all levels.

Extensive people management experience, fostering a culture focused on mentoring, wellbeing and trust.

 

“Nice to have” skills & experience:

BSc or higher or equivalent experience within a relevant security-related subject.

 

Certifications such as CISSP, GCIH, GIAC, GCFE, GREM, or SANS certifications. Solid grasp of ITIL and familiarity with project management methodologies.

 

Experience leading security transformation initiatives, as well as handling third-party vendors and external security partnerships for large scale organisations with a considerable global digital footprint.

Accommodations at Arm

At Arm, we want our people to Do Great Things. If you need support or an accommodation to Be Your Brilliant Self during the recruitment process, please email . To note, by sending us the requested information, you consent to its use by Arm to arrange for appropriate accommodations. All accommodation requests will be treated with confidentiality, and information concerning these requests will only be disclosed as necessary to provide the accommodation. Although this is not an exhaustive list, examples of support include breaks between interviews, having documents read aloud or office accessibility. Please email us about anything we can do to accommodate you during the recruitment process.

Hybrid Working at Arm

Arm’s approach to hybrid working is designed to create a working environment that supports both high performance and personal wellbeing. We believe in bringing people together face to face to enable us to work at pace, whilst recognizing the value of flexibility. Within that framework, we empower groups/teams to determine their own hybrid working patterns, depending on the work and the team’s needs. Details of what this means for each role will be shared upon application. In some cases, the flexibility we can offer is limited by local legal, regulatory, tax, or other considerations, and where this is the case, we will collaborate with you to find the best solution. Please talk to us to find out more about what this could look like for you.

Equal Opportunities at Arm

Arm is an equal opportunity employer, committed to providing an environment of mutual respect where equal opportunities are available to all applicants and colleagues. We are a diverse organization of dedicated and innovative individuals, and don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Maths for Cyber Security Jobs: The Only Topics You Actually Need (& How to Learn Them)

If you are applying for cyber security jobs in the UK it can feel like “real security people” must be brilliant at maths. The reality is simpler: most roles do not need degree-level pure maths. What they do need is confidence with a small set of practical topics that show up repeatedly in day-to-day work across SOC, incident response, cloud security, AppSec, threat detection, IAM & security engineering. This guide strips the maths down to what actually helps you get hired. It includes a 6-week learning plan plus portfolio projects you can publish to prove the skills. You will focus on: Number systems & bitwise thinking (binary, hex, bytes, XOR) Modular arithmetic basics (enough to understand how modern crypto “works”) Probability & statistics for detection, triage & risk Discrete maths for logic, sets, graphs & complexity Security maths habits: estimation, false positive control & evidence-led reporting You will not waste time on heavy theory that rarely appears in junior or mid-level cyber security roles.

Neurodiversity in Cyber Security Careers: Turning Different Thinking into a Superpower

Cyber security is all about thinking like an attacker, spotting unusual patterns, protecting systems & responding calmly when everything looks like it’s on fire. It’s a discipline built on curiosity, persistence & noticing things other people miss. That’s exactly why it can be such a good fit for many neurodivergent people. If you live with ADHD, autism or dyslexia, you may have been told your brain is “too distracted”, “too literal” or “too disorganised” for a security role. In reality, the traits that can make traditional office work tough often line up beautifully with cyber security work – from hyperfocus in incident response to meticulous analysis in threat hunting. This guide is written for cyber security job seekers in the UK. We’ll look at: What neurodiversity means in a cyber context How ADHD, autism & dyslexia strengths map to different security roles Practical workplace adjustments you can ask for under UK law How to talk about neurodivergence during applications & interviews By the end, you’ll have a clearer sense of where you might thrive in cyber security – & how to turn “different thinking” into a genuine superpower.

Cyber Security Hiring Trends 2026: What to Watch Out For (For Job Seekers & Recruiters)

As we move into 2026, the cyber security jobs market in the UK is changing fast. Attackers are scaling up with automation & AI, cloud estates are more complex, & regulators are tightening expectations around resilience & data protection. At the same time, budgets are under pressure & some organisations are consolidating their tech teams. Despite all this, demand for cyber security skills remains strong. Skilled defenders, engineers & leaders are still hard to find, & the stakes are only getting higher. Whether you are a cyber security job seeker planning your next move, or a recruiter building security teams, understanding the key cyber security hiring trends for 2026 will help you make better decisions.