LT Harper Recruitment Group
Principal Security Engineer
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Principal Security Engineer
£110,000 - £120,000 + benefits
United Kingdom - REMOTE
I'm supporting a growing technology business in a regulated sector that is hiring its first Principal Security Engineer.
The role
Security here is a blank page. No tooling, no policies, nobody who has done this job before you. You decide what the function should look like, then build it.
- That means choosing and standing up the stack, designing an identity model that survives an audit, writing detections that catch things early, and picking up the phone when something breaks.
- It also means the quieter half: the policies, the risk register, and the honest conversation with leadership about what the business can live with.
You will work alongside the IT operations counterpart to set how the two disciplines fit together. Nobody reports to you, so your influence rests on being the person whose judgement is trusted.
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Key Responsibilities:
- Select and deploy the security stack from nothing, built on zero trust across cloud, SaaS, endpoints and identity
- Write and tune the detections, then run investigations end to end
- Own incident response, including the playbooks that outlast you
- Automate the repetitive work, from access reviews to vulnerability reporting
- Stand up the governance framework and sit opposite the auditors with evidence
What they are looking for
- Six years or more in security engineering or operations, including a stretch where you built rather than maintained
- Properly hands on with EDR/XDR, SIEM and MDM. Configured and fixed, not just procured
- Real depth in identity: SSO, SAML, OAuth, conditional access, MFA, and zero trust you have actually shipped
- Incident response you led yourself, first alert to post-incident review
- Python, Bash or PowerShell, and the instinct to automate rather than repeat
- Policies you have written and audits you have faced, across ISO 27001, SOC 2 or Cyber Essentials
- Cloud-native and SaaS-heavy environments, AWS preferred.
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Package
- £110,000 - £120,000 depending on experience
- Remote
This would suit someone who is tired of inheriting other people's decisions and reads "nothing exists yet" as the reason to apply.
Please message me directly if you would like to discuss the role in confidence.
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