Suricata Engineer - Active TS/SCI with CI Poly

What You'll Work On

Designing, deploying, and maintaining Suricata IDS/IPS systems across enterprise networks
Developing, reviewing, and optimizing Suricata YAML configuration files to ensure optimal detection capabilities and minimal false positives
Understanding and managing the interaction between Suricata's YAML configuration and its runtime engine, including rule loading, protocol decoding, and logging
Tuning Suricata for optimal performance with Napatech NICs, including configuring Direct Memory Access (DMA), Receive Side Scaling (RSS), interrupt coalescing, and leveraging any NIC-specific acceleration features
Collaborating with security teams to integrate Suricata with SIEM and other security monitoring platforms
Troubleshooting installation and operational issues specific to Suricata on Red Hat Enterprise Linux, addressing compatibility, kernel module requirements, SELinux policies, and performance tuning
Identifying and mitigating common pitfalls encountered when deploying Suricata in large-scale enterprise environments, including package dependencies, system resource constraints, and NIC driver/configuration issues
Providing detailed documentation and runbooks for Suricata configuration, tuning NICs, and deployment processes
Staying current with Suricata releases, NIC driver updates, and community best practices for network interface tuning and IDS/IPS performance enhancement

Requirements

• Proven experience working with Suricata IDS/IPS systems, including hands-on management of its YAML configuration files
• Extensive experience administering Red Hat Enterprise Linux (RHEL) systems, including package management (yum/dnf), kernel module management, SELinux configuration, and system optimization
• Familiarity with NIC-specific features such as DMA, Receive Side Scaling (RSS), interrupt moderation, and offload capabilities, and how to configure them for Suricata
• Experience troubleshooting Suricata's interaction with NIC drivers and kernel modules in an enterprise environment
• Experience with scripting languages (Bash, Python) to automate Suricata configuration and deployment tasks
• TS/SCI clearance with the ability to obtain a counter-intelligence polygraph
• Associate's degree and 5+ years of experience supporting IT projects and activities or Bachelor's degree and 3+ years of experience supporting IT projects and activities or Master's degree and 1+ years of experience supporting IT projects and activities
• DoD 8570 IAT Level II Certification, including Security+ CE, CCNA-Security, GSEC, SSCP, CySA+, GICSP, or CND Certification
• Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly regarded IT consulting and management firm

Benefits

• Free Platinum-Level Medical/Dental/Vision coverage, 100% paid by ENS
• 401k Contribution from Day 1
• PTO + 11 Paid Federal Holidays
• Long & Short Term Disability Insurance
• Group Term Life Insurance
• Tuition, Certification & Professional Development Assistance
• Workers' Compensation
• Relocation Assistance