Cyber Security Engineer, Senior, SIEM – Hybrid, London 90k

Company: Langley James HR & IT Recruitment
Apply for the Cyber Security Engineer, Senior, SIEM – Hybrid, London 90k
Location: London
Job Description:

Overview

Cyber Security Engineer required by an established, global asset management firm based near Bank station to join a focused, high-impact 3-person IT Security team. It is a hybrid role (3 days office, 2 days remote), and the salary is up to £90k + Bonus + Corporate Benefits.

Reporting directly to the IT Security Officer, you will take technical ownership of implementing, maintaining, and hardening robust security across a global infrastructure.

This is a brilliant opportunity to act as a key technical leader, safeguarding sensitive financial data while gaining exposure to modern AI and automation security frameworks.

Key Responsibilities

  • Infrastructure Hardening: Manage and optimise enterprise Firewalls (Palo Alto, Cisco), WAF/DDoS protection (Imperva), and Microsoft Gateways.
  • Threat Detection & Response: Oversee email/web security gateways (Mimecast, Menlo), SIEM/SOAR platforms, and EDR/XDR alert response (CrowdStrike, Rapid7 IDR).
  • Identity & Access Management: Administer MFA/SSO protocols using Okta and Microsoft Entra ID (Azure AD).
  • Endpoint & Vulnerability Management: Manage MDM/MAM solutions via Microsoft Intune, execute vulnerability scans/remediation (Rapid7 IVM), and manage security certificates (Digicert).
  • Governance & Culture: Remediate penetration test findings, contribute to ad-hoc security architecture projects, and deliver security awareness training (KnowBe4).

Requirements

  • Industry Experience: A strong technical background within Financial Services or a structured SOC / Penetration Testing environment.
  • Core Stack Familiarity: Deep hands‑on experience with enterprise tools like CrowdStrike, Palo Alto, Entra ID, Okta, Mimecast, or Rapid7.
  • Soft Skills: Exceptional communication and problem‑solving skills, with the ability to interface with the wider business.
  • Certifications: Relevant industry certifications are highly preferred (e.g., CISM, Microsoft Security, OSCP).

Location, Hours & Flexibility

  • Model: Hybrid working (3 days office, 2 days remote).
  • Hours: Shift pattern covering core operational hours (07:30 – 17:30) to support financial market operations, with occasional out‑of‑hours project work.

Salary & Benefits Package

  • Financial: Competitive base salary up to £90k + performance‑related bonus + company pension.
  • Health & Lifestyle: 25 days holiday, income protection, life assurance, and a subsidised gym membership.
  • Travel: Season ticket loan scheme.
  • Professional Development: Continuous support and funding for advanced security certifications.

Apply now to be a key technical leader safeguarding sensitive data and systems in a highly collaborative environment. Make a significant impact on our global security posture.

Desired Skills and Experience

  • Cybersecurity
  • Information Security
  • Infrastructure Security
  • Vulnerability Management
  • Penetration Testing
  • Security Information and Event Management (SIEM)
  • SOAR (Security Orchestration, Automation, and Response)
  • Endpoint Detection and Response (EDR)
  • Incident Response

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Posted: June 13th, 2026