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Senior Network Defense Specialist
2 weeks ago
As a highly skilled Network Security Engineer, you will play a critical role in advancing our micro-segmentation strategy and enhancing the security posture of our infrastructure.
Key Responsibilities:- Design, deploy, and manage Illumio Core solutions for micro-segmentation across physical and virtual infrastructure.
- Diagnose and resolve issues related to Illumio deployment, including network traffic flows, security policies, segmentation, and application connectivity.
- Develop and enforce application segmentation policies using Illumio's visibility and enforcement modes.
- Collaborate with architecture, DevSecOps, and application teams to define and implement Zero Trust segmentation strategies.
- Monitor and manage Illumio SaaS PCE performance, system health, and integration with SIEM/SOAR platforms.
- Conduct policy reviews, traffic flow analysis, and incident response using Illumio's visualization and enforcement tools.
- Support compliance and assist with audits and maintain relevant policies and procedures.
- Manage Virtual Enforcement Node lifecycle, including deployment, updates, and logging configurations.
- Support integration with tools such as SCCM, Ansible, Satellite, and Intune for automated deployment.
- Collaborate with teams managing Cisco WSA, Stealthwatch, Umbrella, Microsoft GSA, and other network security platforms.
- Lead security investigations, coordinate responses, and document outcomes for future resilience.
- Develop, track, and deliver regular cyber metrics and updates from across IT systems and 3rd parties.
- 5+ years in Network Security, with 2+ years hands-on experience with Illumio Core (PCE and VEN).
- Deep understanding of micro-segmentation, Zero Trust architecture, and east-west traffic control.
- Experience with Cisco security tools (WSA, Stealthwatch, Umbrella) and Microsoft GSA.
- Familiarity with SIEM/SOAR platforms, firewall policy management, and network visibility tools.
- Strong grasp of network protocols, firewall rules, and traffic flow analysis.
- Experience with automated deployment tools and agent-based security models.
- Solid understanding of virtualization platforms (e.g., VMware) and cloud environments.
- Hands-on experience with monitoring tools, SIEM platforms, and scripting languages (e.g., Python, Bash).
- Strong communication and collaboration skills—able to work effectively with both technical and non-technical stakeholders.
