• 02/06/26
• London, London
• £120k - 135k per year + Plus bonus plus pension and other benefits
• Permanent
• Cyber Security and InfoSec
• Full time

Head of Data Security

London (Hybrid) | Full-time | Director Level

We are partnering with a leading global organisation in a highly regulated sector to appoint a Head of Data Security. This is a senior leadership role with enterprise-wide impact, responsible for driving strategy across data protection, cryptography, and emerging security risks.

The Opportunity

This role offers the opportunity to shape and lead a forward-looking data security strategy, with a strong focus on data leakage prevention (DLP) and next-generation cryptography, including preparation for post-quantum security challenges.

You will work closely with technology, risk, legal, and business leadership teams to embed secure practices at scale while enabling innovation.

Key Responsibilities

• Define and lead the organisation's data security and DLP strategy
• Design and implement enterprise-wide DLP controls and monitoring frameworks
• Establish best practices for data classification, encryption, and lifecycle management
• Lead the organisation's approach to post-quantum cryptography and cryptographic agility
• Evaluate and implement advanced security and encryption technologies
• Provide expert leadership in security incidents, breach response, and investigations
• Partner with senior stakeholders to translate technical risks into business actions

What Success Looks Like

• Measurable reduction in data leakage risk
• Strong visibility and governance over sensitive data environments
• A clear, executable roadmap for post-quantum readiness

Experience Required

• Proven leadership experience in data security, cybersecurity, or information security
• Deep expertise in DLP, encryption, and secure data architectures
• Strong understanding of cryptography, key management, and emerging threats
• Experience implementing security controls across cloud, on-prem, and endpoint environments
• Ability to influence at executive and board level
• Relevant certifications (e.g., CISSP, CISM, CCSP) highly desirable

Desirable

• Experience with quantum or post-quantum cryptography initiatives
• Background in regulated industries (e.g., financial services, insurance, healthcare)
• Experience leading incident response and investigations

Why Apply?

• Strategic, high-impact leadership role
• Exposure to cutting-edge security challenges
• Opportunity to shape the future of enterprise data security
• Collaborative, forward-thinking environment