Position Overview We are seeking an experienced Illumio Security Engineer to provide operational support for an enterprise cybersecurity environment. The ideal candidate will have hands-on experience with Illumio Core and Zero Trust Segmentation, including policy management, workload visibility, troubleshooting, and incident support. This is a hands-on support position rather than a high-level architecture role.

The engineer will be responsible for the day-to-day operation and support of the Illumio environment, working with security, network, server, application, and infrastructure teams to maintain effective segmentation and resolve issues.

Responsibilities

Provide day-to-day operational support and administration of the Illumio Core platform. Support Zero Trust Segmentation (ZTS) and microsegmentation policies across enterprise workloads. Monitor and analyze application and workload communications using Illumio Explorer and application dependency maps. Create, modify, test, and maintain Illumio segmentation policies and rulesets.

Assist with defining appropriate communication policies between applications, workloads, environments, and network zones. Support the deployment, configuration, maintenance, and troubleshooting of Illumio Virtual Enforcement Nodes (VENs). Troubleshoot connectivity and application communication issues associated with segmentation policies.

Analyze traffic flows to identify required communications and potential unauthorized or unnecessary connections. Support onboarding and labeling of servers and workloads into the Illumio environment. Assist with policy testing and enforcement to minimize disruption to production applications. Troubleshoot VEN connectivity, policy synchronization, enforcement, and workload communication issues.

Respond to security and infrastructure incidents involving Illumio-managed workloads. Participate in P1/P2 incident response and troubleshooting as required. Work with network, Windows, Linux, application, cloud, and cybersecurity teams to investigate and resolve issues. Support change management activities associated with Illumio policy changes and deployments.

Maintain technical documentation, operational procedures, troubleshooting guides, and policy documentation. Participate in scheduled maintenance and change windows when required. Participate in an on-call/standby support rotation as required by the customer. Required

Qualifications

Hands-on experience administering or supporting Illumio Core in an enterprise environment. Experience with Illumio Policy Compute Engine (PCE) and Virtual Enforcement Nodes (VENs). Practical experience implementing or supporting microsegmentation/Zero Trust Segmentation. Experience creating and maintaining Illumio labels, rulesets, policies, and workload configurations.

Experience using Illumio traffic-flow visibility and application dependency mapping for troubleshooting and policy development. Strong understanding of networking fundamentals, including: TCP/IP Ports and protocols Routing DNS Firewalls Network segmentation Experience troubleshooting application and server connectivity issues. Working knowledge of Windows and Linux server environments.

Experience working within enterprise incident, problem, and change management processes. Ability to troubleshoot production issues methodically and work effectively with multiple technical teams. Strong written and verbal English communication skills. Ability to provide support during U.S. business hours from India.

Preferred Qualifications

• Illumio certification or formal Illumio training.
• Experience supporting Illumio in a large enterprise environment.
• Experience with Illumio Core APIs or automation. Familiarity with ServiceNow or similar ITSM platforms.
• Experience supporting cybersecurity technologies in a 24x7 enterprise environment.
• Exposure to hybrid environments involving on-premises and cloud-hosted workloads.
• Experience working with firewall, network security, or endpoint security technologies. Previous experience supporting U.S.-based enterprise customers from India.