Senior Cyber Security Engineer - Hybrid, SIEM & IR

Academic Key; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Checkout.com in London is seeking a Senior Cyber Security Engineer to join the heart of the Security Operations team. You will harden tooling, tighten procedures, and ensure alerts and remediation are closed out, partnering with other security and engineering teams.

Bring 5+ years in Security Operations, experience with SIEM (Sentinel), DLP, EDR, and vulnerability management, plus scripting in Python or KQL.

Qualifications

• 5+ years in Security Operations, SOC, or equivalent.
• Experience with SIEM (Sentinel), DLP, EDR, and vulnerability management.
• Understanding of alert triage, incident handling, and remediation lifecycles.
• Scripting for automation (Python, KQL).

Responsibilities

• Support and enhance security tooling (SIEM, EDR, DLP, vulnerability management).
• Build and improve runbooks and playbooks for repeatable responses.
• Triage alerts, escalate high-severity events, and assist incident response.
• Drive remediation of findings across engineering teams with ownership and action plans.
• Maintain security data inventories and remediation records.
• Assist with scripting and automation to reduce manual toil.
• Produce operational reporting and metrics on findings and tooling health.

Skills

Security operations

SIEM

EDR tooling

Vulnerability management

Python

KQL

Cloud security

Incident response

Compliance standards

Cloud platforms

Tools

Sentinel

DLP tools

EDR tooling

Job description

Checkout.com in London is seeking a Senior Cyber Security Engineer to join the heart of the Security Operations team. You will harden tooling, tighten procedures, and ensure alerts and remediation are closed out, partnering with other security and engineering teams.

Bring 5+ years in Security Operations, experience with SIEM (Sentinel), DLP, EDR, and vulnerability management, plus scripting in Python or KQL.