Staff Security Engineer - Operations

As a Staff Security Engineer - Operations within Global Information Security (GIS), you will serve as the technical leader, establishing the direction and accountability for our weekend operational defense posture. This role is responsible for ensuring seamless, high-quality / hands-on execution of security operations and governance across our distributed, two-person weekend teams located in Bengaluru, Belfast, and the US (New York/Chicago). You will be accountable for setting operational standards and ensuring consistent, high-quality delivery during the non-traditional trading window.

This position is a critical component of our comprehensive "Follow-the-Sun" support model, vital to achieving 24/7 market protection. Your primary focus will be on global incident response efforts, scheduling and execution of change management tasks, running disaster recovery procedures and driving continuous, global operational maturity across all shifts.

What You'll Do:

• Incident Response Leadership & Governance: Act as the operational escalation point of contact and owner for regional weekend teams during incidents involving Cyber Defense Applications. Direct and coordinate global response efforts, ensuring clear, concise communication and a unified operational strategy across shifts until incident resolution/closure or handover.

• System Resiliency Coordination, Execution & Oversight: Assume full accountability for the definition,  hands-on execution, and governance of security-related tasks during scheduled System Resiliency (Disaster Recovery) exercises. Oversee scheduled exercises as the regional team System Resilience Coordinator (SRC) to fulfill exercise responsibilities, ensure all coordination, issue management, documentation, and communication to stakeholders are handled to the highest standard and aligned with enterprise resilience policy.

• Change Management & Weekend Authority: Serve as regional authorized Cyber Defense Operations escalation point of contact for the weekly Saturday Change Status meetings. Validate, prioritize, and complete assigned weekend operational task work and change execution while ensuring adherence to policy and procedure.

• Tool Standardization and Maturity: Oversee the operational health, configuration, and maintenance lifecycle of security tools, ensuring collaborative alignment with peer and engineering teams across all time zones.

• Mentorship & Knowledge Transfer: Mentor, develop, and set direction for the two-person teams in Belfast, Bengaluru, and the U.S., focusing on elevating technical skills, advanced incident analysis, and consistent operational best practices. Participate in and drive knowledge transfer between regional shifts to minimize operational variance and uplift the global team's collective engineering capabilities.

• Operational Automation: Identify opportunities and guide the development, deployment and supportive documentation of automation scripts (Python preferred) to enhance security control process, effectiveness and team efficiency across the regional operations.

• Documentation & Standards Auditing: Conduct comprehensive, periodic quality reviews and audits of operational documentation, runbooks, and procedures used by the regional teams to ensure consistency, clarity, and adherence to security policy and regulatory requirements.

What You'll Bring:

• Experience: Proven experience (typically 5-7 years) in a progressive security operations or defense engineering role, with demonstrable experience in formal team leadership, mentorship, or technical management capacity.

• Leadership & Coordination: Demonstrated ability to lead and provide direction to technical teams virtually across diverse international locations and time zones during critical operational periods.

• Communication and Governance: Exceptional ability to communicate and collaborate effectively across diverse technical teams, and to provide professional guidance and  clarity for non-technical consumers and senior executive stakeholders from various international locations.

• Practical expertise with Linux and Windows operating system security and hardening best practices.

• Solid understanding of networking and security protocols (TCP/IP, DNS, TLS) relevant to troubleshooting and architecting operational security solutions.

• Expert knowledge of security defense principles and practical expertise with enterprise security tools (e.g., SIEM, EDR, Vulnerability Management).