Location: London (Hybrid – 2 days per week in the office)
We are working with a global, technology-led organisation providing solutions to some of the world’s leading financial institutions.
They are looking for an experienced Senior Security Engineer (Cloud & SecOps) to join their Information Security team and take ownership of threat detection, incident response and cloud security across a complex AWS-hosted SaaS environment.
This is a hands‑on role with significant ownership, combining security engineering, operational security and the opportunity to shape detection and response capabilities.
Key Responsibilities
- Own and strengthen the security posture of the AWS environment, including IAM, logging, security controls and cloud risk remediation.
- Manage and optimise the SIEM platform, developing detection use cases, tuning alerts and improving threat visibility.
- Oversee the managed Security Operations Centre (SOC), ensuring effective monitoring, escalation and incident handling.
- Lead security incident response activities, including investigation, containment, root cause analysis and remediation.
- Drive vulnerability management, penetration testing and external attack surface monitoring.
- Strengthen security across corporate systems, endpoints and SaaS applications.
- Develop security automation using scripting and infrastructure-as-code.
- Work closely with Engineering, Platform and IT teams to improve security controls and operational resilience.
- Provide security metrics and support audit and assurance activities.
Skills & Experience
- Strong background in security operations, cloud security engineering or a similar hands‑on security role.
- In-depth experience securing AWS environments, including IAM, CloudTrail, GuardDuty, Security Hub and AWS Organizations.
- Practical SIEM experience, including developing and tuning detection rules, not just responding to alerts.
- Experience with container and Kubernetes security, ideally Amazon EKS.
- Proven experience leading security incident investigations and response within cloud environments.
- Experience managing or working closely with an outsourced SOC or MDR provider.
- Scripting experience with Python or similar languages, alongside infrastructure-as-code.
- Strong communication skills, with the ability to explain technical security risks to different stakeholders.
If you have strong AWS security experience, enjoy building effective detection and response capabilities, and want a role with genuine technical ownership, we’d be happy to hear from you.
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