Cyber Security Engineer | Fast-growing Hedge Fund – up to £250k – £300k TC

Company: Saragossa
Apply for the Cyber Security Engineer | Fast-growing Hedge Fund – up to £250k – £300k TC
Location: London
Job Description:

You’ll be the first security hire at a fast-growing hedge fund, building the function from the ground up with full ownership and no blueprint to follow.

This is a greenfield role: you’ll come in and assess where things stand, close the obvious gaps across access controls and monitoring, and start building something that actually reflects how the firm operates.

The interesting part is the AI angle. The firm is investing heavily across the business in AI tools and models, and right now there is no dedicated person thinking about what that means for security, which is the gap you’ll fill. You’ll think about data exfiltration risks, logging and monitoring for AI agents, and how the threat landscape shifts when the whole organisation is actively deploying these tools. Over time, you’ll own the AI security tooling more broadly.

Hopefully, you are comfortable being the only person in the room with this specialism. You can hold your own with stakeholders, get organisational buy-in, and move from identifying a problem to fixing it without needing a big team around you.

On the technical side, you’ll need hands-on experience securing organisations against external threats, including the kind of AI-assisted phishing and intrusion attempts that are becoming harder to defend against. Hands-on experience with coding in Python is also important.

This would be a great next step if you are ready to move into something where you genuinely own the outcome.

This role is based full time in London.

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Posted: October 2nd, 2026