Senior IT Security: Firewall Governance Lead (Hybrid)

Marsh Agency; Ciudad de México; Hybrid; MXN 900,000 - 1,500,000; Full time

Job summary

Marsh is seeking a Senior Specialist - IT Security in Mexico City to join the Security Architecture team. The role focuses on governance, review, and approval of firewall security controls across a global enterprise.

It emphasizes control assurance, policy compliance, and analysis of security controls rather than daily firewall operations. The position is hybrid, requiring at least three days in the office weekly, and collaborates with network, cloud, and platform teams to improve governance

Qualifications

• 3-4 years of experience in IT security or network security.
• Experience reviewing firewall rules in enterprise environments.
• Strong understanding of network security concepts, segmentation, and access control.
• Experience with formal change management or ITSM processes.
• Strong analytical skills and attention to detail.
• Ability to interpret complex configurations and historical changes.
• Clear communication and client-service orientation.

Responsibilities

• Review and approve firewall change requests submitted through formal change management processes.
• Assess firewall changes and existing rules for alignment with internal security requirements, architectural standards, and least privilege principles.
• Identify non compliant or higher risk changes and support resolution through established risk acceptance processes.
• Perform periodic and targeted reviews of deployed firewall rules to validate ongoing compliance.
• Analyze complex and layered rule sets, including understanding historical changes and prior design decisions.
• Provide security oversight for enterprise firewall environments, including Palo Alto Networks, cloud native firewalls, and Kubernetes based platforms.
• Maintain documentation and evidence to support governance, audit, and control assurance activities.
• Partner with network, cloud, and platform teams to provide clear, practical security guidance.
• Contribute to improvements in firewall governance processes through standardization and supporting tools.

Skills

IT security

Firewall governance

Change management

Analytical skills

Communication

Risk analysis

Job description

Marsh is seeking a Senior Specialist - IT Security in Mexico City to join the Security Architecture team. The role focuses on governance, review, and approval of firewall security controls across a global enterprise.

It emphasizes control assurance, policy compliance, and analysis of security controls rather than daily firewall operations. The position is hybrid, requiring at least three days in the office weekly, and collaborates with network, cloud, and platform teams to improve governance