AWS Cloud Security Operations Engineer

Xcede; Greater London; Hybrid; GBP 619,920 - 895,440; Full time

Job summary

A leading Quant Trading firm is seeking an experienced Cloud Security Operations Engineer to join on a contract basis. This hybrid role requires expertise in AWS, focusing on operational security tasks, monitoring alerts, and ensuring compliance. Responsibilities include managing cloud security and responding to business requests, leveraging CSPM tools. Candidates should have AWS experience, IAM knowledge, and ideally the AWS Certified Security – Specialty. Join us to enhance cloud security in a dynamic trading environment.

Qualifications

• Practical experience operating and supporting AWS cloud environments.
• Working knowledge of AWS IAM, roles, policies, and access control models.
• Experience monitoring and responding to alerts from AWS security services.
• Familiarity with cloud security posture management and vulnerability management practices.
• Ideally you will have your AWS Certified Security – Specialty.

Responsibilities

• Manage BAU cloud security activities and respond to infrastructure requests.
• Monitor alerts and ensure continuous compliance across AWS environments.
• Design and implement custom alerting rules for effective threat detection.

Skills

Practical experience operating AWS

Knowledge of AWS IAM

Monitoring alerts from AWS security services

Cloud security posture management

AWS Certified Security – Specialty

Job description

Contract Cloud Security Operations Engineer - Quant Trading (Inside IR35, Hybrid): This is a unique opportunity for an experienced AWS-focused Cloud Security OPerations Engineer to join a leading Quant Trading firm on a contract/interim basis.

The Cloud Security function supports the secure day‑to‑day operation of the AWS cloud environments. This role is operationally focused, managing BAU cloud security activities, responding to business and infrastructure requests, monitoring alerts, and ensuring continuous compliance across the AWS estate.

The role is effectively a DevSecOps role; the incoming Cloud Security Operations Engineer will be responsible for monitoring and maintaining the overall health of the cloud security posture across AWS environments, leveraging industry‑standard CSPM tooling and related platforms to identify risk trends, control gaps, and configuration drift. You will design, implement, and continuously refine custom alerting rules and detection logic to enable effective threat detection and response across cloud workloads. Fulfil and review IAM access requests in accordance with least‑privilege principles. Review and approve security‑related change requests impacting AWS environments.

Requirements:

• Practical experience operating and supporting AWS cloud environments.
• Working knowledge of AWS IAM, roles, policies, and access control models.
• Experience monitoring and responding to alerts from AWS security services.
• Familiarity with cloud security posture management and vulnerability management practices.
• Ideally you will have yourAWS Certified Security – Specialty.