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Senior Security Engineer

United Kingdom
Visa Sponsorship
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Join a growing SaaS scale-up as the first security engineering hire to build and automate security workflows using AI and LLMs. Secure a predominantly AWS and GCP cloud environment while managing vulnerability remediation and implementing scalable security tooling. Requires hands-on security engineering experience, strong cloud security knowledge, and scripting/automation skills.

Key Highlights
First security engineering hire with freedom to experiment with AI and define processes
Hybrid working model (2 days in office) in central London
Salary range of £90-100k plus share options

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Key Responsibilities
Build agents and automate security workflows using AI
Write scripts and tooling to improve existing processes
Secure a predominantly AWS and GCP cloud environment
Support vulnerability management and remediation
Implement security tooling and engineer scalable security solutions

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Technical Skills Required
Cloud Security Scripting AI/LLMs

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Benefits & Perks
Share options
Visa sponsorship available for candidates already in UK on skilled worker visa

Job Description

We’re hiring a Senior Security Engineer to join a growing SaaS scale-up, with a strong focus on hands-on security engineering, automation and cloud security.

You’ll use AI to build agents and automate security workflows, write scripts and tooling, secure a predominantly AWS (70%) / GCP (30%) cloud environment, and support vulnerability management and remediation. This is a build-focused role where you’ll have the freedom to experiment with AI, improve existing processes, implement security tooling and engineer scalable security solutions. This is the first security engineering hire so the role will initially be very broad and flexible, allowing you to specialise as the team grows.

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Job Overview
Posted Sep 09, 2026
Employment Full-time
Experience Mid-Senior level
Location United Kingdom
Category Cyber Security
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