Senior Cisco Identity Services Engine; ISE) Engineer

Position: Senior Cisco Identity Services Engine (ISE) Engineer **
Location: Washington

Position

Description:

CGI is seeking a Senior Cisco Identity Services Engine (ISE) Engineer to lead the operation, maintenance, and support of an enterprise network access control platform in a large financial services environment.

This position is required in one of the following locations:
Washington, DCOther Information: CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit based performance, CGI typically does not hire individuals at or near the top of the range for their role.

Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $ $.CGI's benefits are offered to eligible professionals on their first day of employment to include:
Competitive compensation. Comprehensive insurance options. Matching contributions through the 401(k) plan and the share purchase plan. Paid time off for vacation, holidays, and sick time. Paid parental leave. Learning opportunities and tuition assistance. Wellness and Well-being programs.

Your future duties and responsibilities:

This hands-on role supports secure wired and wireless access, certificate-based authentication, identity integrations, and the availability of a distributed, highly available ISE environment. You will independently manage platform upgrades, certificate renewals, policy changes, vulnerability remediation, and infrastructure migrations. Responsibilities include troubleshooting complex authentication failures, resolving production incidents, and managing changes through Service Now with clear implementation, validation, and rollback plans.

The role works closely with network, wireless, endpoint, security, and infrastructure teams, as well as Cisco TAC. Strong technical ownership, sound production judgment, and clear communication are essential. Scheduled evening and weekend maintenance work is required as needed.

Required qualifications to be successful in this role:. 5+ years of hands-on experience administering and troubleshooting Cisco ISE 3.x in distributed, multi node enterprise environments.. Thorough understanding of network access control (NAC), AAA, 802.1X, RADIUS, EAP/EAP TLS, and certificate based wired and wireless authentication.. Experience managing ISE authentication and authorization policies, policy sets, identity sources, Active Directory group mappings, and security group-based access controls..

Practical knowledge of enterprise PKI, including certificate chains, CA trust, renewals, replacements, and their impact on endpoint authentication.. Ability to independently execute ISE upgrades, patches, node maintenance, and vulnerability remediation while maintaining platform availability.. Strong troubleshooting skills using ISE Live Logs, packet captures, debug output, and Splunk to trace authentication failures and identify root causes.. Experience owning Service Now production changes, including risk assessments, implementation steps, validation, rollback procedures, and post change documentation..

Working knowledge of Cisco Catalyst switching, enterprise wireless, DNS, firewall connectivity, and syslog integrations.. Experience supporting infrastructure migrations, node deployment and retirement, high availability, and configuration lifecycle management.. Ability to coordinate major incident resolution, work with Cisco TAC, document corrective actions, and guide other engineers.

Desired Skillset:. Experience in financial services or another highly regulated…