Linux Security Engineer

Linux Security Engineer

Job Description

[Up to c. $375k Comp Package | Hybrid Working - 3 Days in Office]

Are you a Linux Security specialist looking to take ownership of architecture design, automation, and security best practices in a high-performance trading environment? Our client, a global leader in quantitative trading, is looking for a Linux Security Engineer to drive security strategy across on-premise and cloud-based Linux infrastructure. This is a chance to shape security at scale, implementing cutting-edge solutions while mentoring teams and influencing security culture across the organisation...

Key Responsibilities

• Architect and implement security controls across a large-scale Linux environment, ensuring alignment with industry best practices
• Develop Ansible automation scripts for security configuration, compliance enforcement, and infrastructure hardening
• Design and deploy security-hardened Linux OS images, enforcing guardrails across the organisation
• Strengthen container security strategies for Docker, Podman, Kubernetes, OpenShift, and Swarm
• Improve authentication and authorisation mechanisms, integrating LDAP and PAM solutions for secure access control
• Lead security assessments and audits, proactively identifying vulnerabilities and enforcing mitigation strategies
• Monitor and respond to Linux security incidents, ensuring a rapid and effective response to potential threats
• Work cross-functionally with engineering, operations, and compliance teams to ensure security requirements are embedded in all processes
• Maintain detailed security documentation and operational procedures, ensuring clarity and consistency in security standards
• Provide technical leadership and mentorship, driving security awareness and best practices across the firm

What You Bring...

• 4+ years of experience in Linux security engineering, infrastructure security, or automation-driven security architecture
• Expertise in Linux OS hardening, secure configurations, and privileged access management (PAM)
• Strong hands-on experience with Ansible automation for security compliance and infrastructure as code
• In-depth knowledge of container security within Docker, Podman, and Kubernetes environments
• Proficiency in LDAP authentication, authorisation models, and enterprise access controls
• Familiarity with CI/CD security integration, embedding security controls within automated deployment pipelines
• Experience conducting security audits, vulnerability assessments, and penetration testing in Linux environments
• Strong problem-solving and analytical skills, with a proactive approach to improving security posture
• (Preferred) Knowledge of cloud security best practices within AWS, Azure, or GCP
• (Preferred) Experience working in high-performance computing, trading, or financial services environments

...

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