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Director of Security Engineering - Permanent - London

£130,000 - £150,000 + performance bonus & corporate benefits
Hybrid - Central London

This one is a corker and in my opinion one of the most exciting perm roles i've had the pleasure of working on in the last decade. I will be taking printed copies of CVs to present to the client next Tuesday morning so if you're up for it, send me message and we'll have a chat.

I have been engaged on a search for a Director of Security Engineering reporting directly into the CISO of a high growth, international technology business. This is an opportunity for a security leader who wants genuine ownership, influence and the ability to shape the future direction of security across a modern SaaS organisation.

This is one for someone who can operate strategically with executive stakeholders whilst remaining credible with engineers, architects and technical teams. You'll be joining at a particularly interesting point in the organisation's journey, helping to scale security capabilities, embed security into product and engineering functions, strengthen detection and response capabilities and shape how the business approaches AI security and emerging technology risks.

If you're a security leader who wants to own Security Engineering, SecOps, AppSec, Cloud Security and AI Security in a business where security is viewed as an enabler rather than a blocker reach out to me ASAP. It would be particularly suited to existing Directors, Heads of Security Engineering, Heads of Security Operations, Senior Security Managers or technically minded security leaders who are looking for a broader remit and greater impact.

Experience within SaaS, technology, cloud native or product led organisations would be especially valuable.

GCS is acting as an Employment Agency in relation to this vacancy.

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What You'll Work OnInternational Ads Strategy SupportSupport strategic analysis across international markets, reflecting differences in market maturity, regulation, and advertiser sophistication.Develop comparative views, market frameworks, and structured analyses to inform global vs local decisions.Support ongoing product prioritisation tied with the sales planning process.Executive CommunicationProduce clear, concise, executive‑ready decks and documents to support leadership discussions.Turn complex analysis into structured narratives with clear takeaways.Support ad‑hoc strategy deep dives as needed.Programmatic & Ad Ecosystem InsightApply a strong understanding of programmatic advertising and ad tech ecosystems to inform strategy work.Translate ecosystem knowledge into implications for ad product and monetisation strategy.What We're Looking For3-5+ years' experience in advertising environments - e.g. ad revenue strategy, ad tech, ad strategy or programmatic. Background in consulting, strategy, analytics, or similarly structured problem‑solving roles is highly desirable.Comfort working with and analysing data sets including AI tools.Exposure to targeting, measurement, audience strategy, or ads data enablement.Experience working with international or multi‑market contexts is a plus.Direct experience within the advertising ecosystem (publisher, platform, ad tech, agency, or advertiser) strongly preferred.Strong analytical and problem‑solving skills.Comfort working with ambiguity and bringing structure to complex questions.Strong written and visual communication skills, particularly for senior audiences.Collaborative working style with product, data, and commercial teams.Pragmatic, impact‑focused mindset.Bachelor's degree or higher.

GCS is acting as an Employment Agency in relation to this vacancy.

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