Senior Information Security Engineer: Incident Response Lead

GB.540 Houlihan Lokey UK Limited; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Houlihan Lokey UK Limited is seeking a Senior Information Security Engineer to join the global security team. You will defend endpoints, networks, cloud infrastructure, and identity systems; lead incident response, and help mature incident response playbooks across regions.

You will design and implement security controls, coordinate with IT and business units, and participate in on-call rotations to support a follow-the-sun security operation across offices worldwide.

Qualifications

• Bachelor’s degree or equivalent practical experience in CS/InfoSec.
• 7+ years in information security engineering/operations or similar.
• Hands-on incident response experience leading investigations and remediation.
• Broad enterprise security: endpoints, network, identity, cloud, and app security.
• Strong scripting/automation skills (Python/PowerShell/Bash).
• Excellent communication and collaboration across regional teams.

Responsibilities

• Design, implement, and maintain security controls across endpoints, servers, networks, cloud platforms, and identity systems.
• Lead security incidents: triage, investigation, containment, eradication, and post-incident reviews.
• Monitor and improve detection capabilities across SIEM/EDR and cloud security tooling.
• Partner with IT, app dev, and business teams to embed security in new projects and M&A tech integrations.
• Manage vulnerability management activities across a global multi-office environment.
• Lead and improve IAM practices including PAM and least-privilege.
• Design data protection controls for MNPI, DLP, encryption, and secure collaboration tooling.
• Support penetration testing and red team engagements; validate remediation.
• Contribute to third-party risk assessments for sensitive workflows.
• Support regulatory/compliance efforts relevant to global financial services.

Skills

Incident response

Security engineering

Communication

Project management

Scripting (Python)

Education

Bachelor's degree in Computer Science or Information Security

Tools

Tenable

Qualys

Rapid7

PowerShell

Python

Azure

AWS

GCP

Job description

Houlihan Lokey UK Limited is seeking a Senior Information Security Engineer to join the global security team. You will defend endpoints, networks, cloud infrastructure, and identity systems; lead incident response, and help mature incident response playbooks across regions.

You will design and implement security controls, coordinate with IT and business units, and participate in on-call rotations to support a follow-the-sun security operation across offices worldwide.