Senior Security Analyst
Location
Barnwood, Gloucestershire
Job Type
Full-time
Category
computer-and-mathematical
Posted
June 08, 2026
The Senior Security Analyst is a hands-on security operations role providing 24/7 operational coverage within a regulated financial services environment. You will own security incidents end-to-end, from detection through to investigation, response, and remediation coordination.
Operating within a small, senior team, you will also deliver proactive security activities including threat hunting, vulnerability management, and tooling validation—ensuring continuous improvement of the client’s security posture.
This role operates on a 24/7 shift pattern (12-hour shifts, 4-on / 4-off including nights and weekends).
Key Responsibilities
* Monitor and investigate alerts across Microsoft Defender, SIEM, and security tooling
* Own security incidents end-to-end, including investigation, containment, and resolution
* Perform deep-dive investigations using KQL and multi-source telemetry
* Correlate data across endpoint, identity, cloud, and ne...
Operating within a small, senior team, you will also deliver proactive security activities including threat hunting, vulnerability management, and tooling validation—ensuring continuous improvement of the client’s security posture.
This role operates on a 24/7 shift pattern (12-hour shifts, 4-on / 4-off including nights and weekends).
Key Responsibilities
* Monitor and investigate alerts across Microsoft Defender, SIEM, and security tooling
* Own security incidents end-to-end, including investigation, containment, and resolution
* Perform deep-dive investigations using KQL and multi-source telemetry
* Correlate data across endpoint, identity, cloud, and ne...