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AfterDuty

First Line IT Security Officer

MLM SEARCH · London, Greater London

Type
Full-time
Posted
8 days ago

Overview

Your incident response and risk assessment experience from policing transfers to this operational security role.

About this role

This is a hands-on, first-line security role for a doer — not a policy-writer or a manager. You will effectively be the operational security function, running vulnerability management, incident response and day-to-day controls yourself.

There is no SOC and no team beneath you — so we need someone who is genuinely self-sufficient, gets stuck in, and can also talk risk credibly to an ISO 27001-minded leadership team.

What you'll actually do

  • Run vulnerability management end to end on Tenable — scanning, triage, risk-based prioritisation (CVE/KEV, severity, business impact) and driving owners to remediate to SLA.
  • Own the security incident process — detection, triage, containment, recovery — and escalate to the ISO/2nd line properly.
  • Conduct or coordinate regular and ad-hoc security assessments (VAPT) and close the findings.
  • Run control-based risk assessments and keep the risk register current — you'll be expected to know the difference between a risk and an issue, and to explain both clearly.
  • Implement and maintain security controls in line with the Group NFR Control Catalogue, ISO 27001.
  • Support compliance and audit, IAM and access reviews, and security awareness across the business.

Background

  • A hands-on security operator background — you've personally run vulnerability management and worked incidents, not just overseen them.
  • Real experience with vulnerability scanners (Tenable ideal; Qualys/Nessus transferable) and endpoint/network monitoring.
  • Genuine grasp of IT risk — risk assessment, risk registers, risk vs issue, and how controls map to frameworks (ISO 27001, PCI-DSS, NIST).
  • Solid cloud and identity fundamentals (Azure / M365 / Entra ID; AWS or OCI welcome).
  • The temperament to work autonomously as the sole first-line resource and communicate risk clearly to non-technical stakeholders.
  • Ideally from a regulated / financial-services environment;

About cyber security & digital forensics roles for ex-police

Cyber security, digital forensics and incident-response roles. DMIs, cybercrime investigators and digital forensics officers bring evidential discipline and investigative judgement that DFIR and security teams struggle to hire.

See all cyber security & digital forensics jobs in London

Why this fits a police background

  • Incident command & response
  • Risk & threat assessment
  • Working to legislation & regulation

What cyber security & digital forensics roles pay ex-police

Advertised UK ranges, editorial estimates reviewed July 2026

Digital forensics analyst£32,000–£45,000
DFIR consultant£45,000–£65,000
Senior forensics / IR specialist£60,000–£80,000
Threat-intelligence specialist£55,000–£80,000
Full cyber security & digital forensics salary guide →

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