Senior Cisco Identity Services Engine (ISE) Engineer **

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 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 ServiceNow 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.

Cisco Network Systems, Cisco Network Systems, Software Development, Software Engineering, CGI (Common Gateway Interface), Network Access Control (NAC), Financial Services, Network Administration/Management, Tuition Fees, High Availability, 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 ServiceNow 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 enterprise environment.

. Familiarity with AWS and hybrid infrastructure supporting enterprise network and identity services.

. Experience with REST APIs, Python, Ansible, Terraform, or similar tools for operational automation.

. Experience connecting Splunk monitoring and alerts to ServiceNow incident workflows.

. CCNP Security, CCNP Enterprise, or relevant Cisco ISE training.

Educational Requirements:

Bachelor’’s degree in computer science, Information Systems, or a related field.

Cisco certifications and ISE specific training are preferred, not required.

Skills:

• Cisco
• Ansible
• Python
• Splunk
• Terraform

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 $110,100.00 $123,200.00.

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.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team-one of the largest IT and business consulting services firms in the world.