Security Operations Specialist in London

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we're building a world-class platform to amplify our teams' most powerful ideas. Security is foundational to this mission and must be delivered in a way that supports how our engineering teams build and operate complex systems at scale.

The role

We're looking for a Security Operations Analyst to join the Security Operations Centre (SOC). This team monitors, investigates and responds to security incidents across G-Research's high-performance compute (HPC) environments, hybrid cloud platforms and corporate estate. Operating on the front line of our defensive capability, the SOC analyzes alerts, investigates threats and supports their detection, containment and eradication. As a Security Operations Analyst, you will work across a broad range of technologies and investigative disciplines, developing your skills in triage, incident response, detection engineering, and forensic analysis. You will collaborate closely with the wider security function and engineering teams to continuously improve our detection and response capabilities. This role is ideal for someone with experience in a SOC or incident response team who wants to deepen their technical skills, contribute directly to meaningful defensive work and progress towards senior responsibilities.

Key responsibilities

• Performing triage, investigation and escalation of security alerts across HPC, cloud and corporate environments
• Supporting incident response activities including containment, remediation and reporting
• Conducting host and log-based forensic analysis across Windows, Linux, cloud, network and application environments
• Executing threat hunting tasks to identify abnormal or suspicious behaviours beyond existing detections
• Developing and refining detection rules, analytics and playbooks alongside senior analysts
• Maintaining accurate investigation records and case documentation
• Contributing to the continuous improvement of workflows, tooling and operational processes
• Collaborating with colleagues, engineers and internal stakeholders to support investigations, knowledge sharing and ongoing improvements

Who are we looking for?

• Experience in a SOC, CSIRT or security operations role with hands‑on involvement in alert handling and investigations
• Strong understanding of security fundamentals, including network security, endpoint artefacts, authentication patterns, malware behaviours and common attack techniques
• Experience using SIEM, XDR or SOAR tools such as Elastic Security, Sentinel, Azure Defender XDR or AWS Security Hub
• Ability to analyze logs, correlate events and develop investigative hypotheses
• Familiarity with forensic concepts, including filesystems, memory artefacts, persistence mechanisms, log sources and cloud control‑plane events
• Strong technical curiosity and desire to develop expertise in incident response, forensics and detection engineering
• Strong written and verbal communication skills with a collaborative approach to working with analysts and engineers
• Experience with scripting or automation using Python or PowerShell is desirable
• Exposure to cloud platforms, HPC environments or relevant certifications such as GCIH or GCIA is beneficial

Why join us?

• Highly competitive compensation plus annual discretionary bonus
• Lunch provided via Just Eat for Business and dedicated barista bar
• 30 days' annual leave
• 9% company pension contributions
• Informal dress code and excellent work‑life balance
• Comprehensive healthcare and life assurance
• Cycle‑to‑work scheme
• Monthly company events

G-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas‑driven business and we place great value on diversity of experience and opinions. We want to ensure that applicants receive a recruitment experience that enables them to perform at their best. If you have a disability or special need that requires accommodation please let us know in the relevant section.