Senior Security Engineer

Salary: £65,000 - 75,000 per year

• We require strong experience in security engineering and security platform management.
• We require experience supporting SOC tooling and security operations environments.
• We require hands on experience with Microsoft Defender and Microsoft Sentinel.
• We require a strong understanding of SIEM, XDR, and security platform integrations.
• We require experience in hybrid on premises and cloud environments.
• We require strong troubleshooting skills across platforms, integrations, and data pipelines.
• We require experience with scripting and automation such as PowerShell, Python, or similar tools.
• We require a strong understanding of networking, cloud, and infrastructure fundamentals.
• We require experience working in regulated environments, ideally financial services.
• We require strong documentation and communication skills.
• We would prefer experience with vulnerability and scanning tools such as Qualys.
• We would prefer familiarity with exposure management and BAS tools such as XM Cyber and AttackIQ.
• We would prefer knowledge of DLP, email security, and cloud security platforms.
• We would prefer awareness of PAM and data security tools such as CyberArk and Varonis.

• We maintain and configure security platforms including SIEM, XDR/EDR, vulnerability, and cloud security tooling.
• We perform lifecycle activities including patching, upgrades, and configuration changes.
• We ensure security platforms are fully integrated across on premises and cloud environments.
• We monitor platform health, performance, and availability, and resolve issues proactively.
• We support service transitions, upgrades, and controlled change activities.
• We act as the escalation point for platform issues raised by our Security Analyst team.
• We provide engineering support during complex incidents and investigations.
• We implement platform level changes to support incident response and remediation.
• We support detection engineering including rule deployment, tuning, and validation.
• We resolve data quality, alerting, and detection gaps that affect operational effectiveness.
• We support automation and SOAR initiatives such as Sentinel and Logic Apps.
• We collaborate with SOC providers to maintain SIEM configuration and log ingestion.
• We maintain accurate engineering documentation, runbooks, and platform records.
• We ensure all platforms meet regulatory, audit, and compliance requirements.
• We contribute to governance, reporting, and continuous improvement initiatives.

• Cloud
• Support
• PowerShell
• Python
• Security

We are a client aligned security engineering team supporting a financial services organisation operating in a regulated environment. This is a hands on Senior Security Engineer role focused on the day to day operation, maintenance, and optimisation of security platforms, working closely with our 24/7 Security Analyst team to support investigations, resolve platform issues, and improve detection and response capabilities. The role is based in London with approximately three days onsite each week.