Senior Firewall & VPN Security Administrator

chicagotransit; Chicago (IL); On-site; USD 102,000 - 141,000; Full time

Job summary

Chicago Transit Authority is seeking a Cyber Security Firewall Administrator responsible for deploying, configuring, and administering firewall and remote access systems to protect CTA networks from cyber threats in a large transit environment.

The role includes building and maintaining firewall rules and ACLs, managing IPsec/SSL VPNs, integrating IAM/MFA solutions, monitoring logs, and responding to security events in collaboration with IT and cyber security teams while adhering to industry

Qualifications

• Bachelor's degree in information security/cyber security, information technology, computer science or related field required.
• Cisco Certified Specialist – Security Core, Cisco Certified Network Professional (CCNP) Security, Cisco Certified CyberOps Professional, or similar.
• Three to five years of experience in firewall administration or related position for large enterprises.

Responsibilities

• Install, configure, and maintain enterprise firewall systems (e.g., Palo Alto, Cisco, Fortinet, Check Point).
• Create, modify, review, and optimize firewall rules for security and performance.
• Implement and update firewall rules and ACLs in accordance with security policies.
• Monitor and interpret firewall logs and alerts to detect, analyze, and respond to potential security incidents.
• Apply firmware updates and security patches to firewall systems to mitigate vulnerabilities.
• Diagnose connectivity issues, packet drops, and misconfigured policies.
• Troubleshoot firewall-related issues affecting network performance or connectivity.
• Document firewall architecture, configurations, change management activities, and incident response actions.

Skills

Firewall administration

VPN management

Threat analysis

IAM integration

Cisco firewall expertise

Education

Bachelor's degree in information security / cyber security / IT / CS

Cisco CCNP Security or similar certification

Tools

Palo Alto

Cisco ASA

Fortinet

Check Point

Job description

Chicago Transit Authority is seeking a Cyber Security Firewall Administrator responsible for deploying, configuring, and administering firewall and remote access systems to protect CTA networks from cyber threats in a large transit environment.

The role includes building and maintaining firewall rules and ACLs, managing IPsec/SSL VPNs, integrating IAM/MFA solutions, monitoring logs, and responding to security events in collaboration with IT and cyber security teams while adhering to industry