Cisco Identity Services Engine (ISE) Engineer.

Position Overview: This six-month contract role is based in Denver, Colorado. The engineer will assess, clean up, and upgrade an existing Cisco Identity Services Engine (ISE) environment that supports Wi-Fi authentication. The primary focus is ISE configuration, policy, platform health, and upgrade execution. Wireless engineering experience is helpful but not required.

Responsibilities:

• Assess the current Cisco ISE deployment, configuration, policies, and operational health.
• Identify configuration inconsistencies, outdated settings, and opportunities to simplify or improve the environment.
• Plan and support a Cisco ISE upgrade, including prerequisites, sequencing, change coordination, validation, and rollback planning.
• Review and maintain authentication and authorization policies, policy sets, identity sources, and related services.
• Troubleshoot authentication and access issues by using logs and policy results to identify root causes.
• Coordinate with network, security, and infrastructure teams to understand dependencies and minimize service disruption.
• Document the existing environment, changes made, test results, and operational recommendations.
• Support testing of wireless authentication flows and help resolve issues involving ISE and network access infrastructure.

Qualifications:

• Required: Hands-on experience administering and troubleshooting Cisco ISE in an enterprise environment.
• Required: Experience with Cisco ISE upgrades, configuration cleanup, or platform maintenance.
• Required: Working knowledge of network access authentication and authorization, including Remote Authentication Dial-In User Service (RADIUS) and IEEE 802.1X.
• Required: Ability to analyze authentication failures and communicate findings clearly to technical and nontechnical stakeholders.
• Required: Experience planning and documenting changes in a production environment.
• Preferred: Wireless networking experience, such as Cisco Wireless LAN Controller (WLC) configuration, access point operations, or radio frequency (RF) fundamentals.
• Preferred: Experience troubleshooting end-to-end Wi-Fi authentication involving ISE, wireless controllers, and access points.
• Preferred: Familiarity with identity integrations such as Microsoft Active Directory or Lightweight Directory Access Protocol (LDAP), certificates, and endpoint profiling.
• Preferred: Relevant Cisco certifications or equivalent practical experience.

Tools and Technologies:

• Cisco Identity Services Engine (ISE)
• RADIUS and IEEE 802.1X
• Cisco Wireless LAN Controllers and access points
• Microsoft Active Directory, LDAP, and certificate services
• Cisco ISE logging, policy results, endpoint profiling, and change documentation tools

Vailexa Technology is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status under applicable law.