Gigamon Network Engineer

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation’s top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk.

Gigamon Network Engineer 

An active Top Secret / SCI clearance with the willingness to take and pass a polygraph exam is required for consideration for hire for this role. Work is to be performed 100% onsite with our Government Customer

Locations available: JBAB (Bolling AFB), DC; Maryland Square, MD; Reston, VA; Quantico, VA

What You’ll Get To Do:

In this role the Gigamon Engineer is responsible for deploying, operating, and sustaining the Gigamon Deep Observability Pipeline across DIA-managed enclaves and mission networks, enabling full packet-level visibility to support intelligence community (IC) cybersecurity operations. 

This position operates within a classified IC environment and requires close coordination with DIA cybersecurity, network operations, and mission partners. The engineer will support threat detection, anomaly analysis, and sensor grid expansion across high-priority intelligence networks, directly contributing to DIA's ability to identify and respond to advanced persistent threats (APTs) and insider threats targeting national security systems.

With mentoring, challenging hands-on problem-solving, and opportunities to learn new tools and skills, we focus on growing as a team to make the best solutions for our customers.

Roles & Responsibilities

• Deploy, configure, and sustain GigaVUE HC-3, T-10, and HD-Series packet brokers; design TAP/SPAN architectures for full traffic visibility across classified and unclassified DIA network segments
• Administer GigaVUE Fabric Manager (GFM) for policy management, traffic mapping, and tool load balancing; configure GigaSMART features including deduplication, slicing, masking, and application filtering
• Integrate Gigamon outputs with DIA-operated SIEM, IDS/IPS, and full-packet capture platforms; ensure all deployments comply with RMF, ICD 503, and applicable DISA STIGs
• Deliver enriched traffic feeds to DIA analytics platforms supporting threat hunting, anomaly detection, and APT/insider threat identification; assess and remediate sensor coverage gaps
• Support SOC analysts and ISSM/ISSO personnel during incident response with packet-level data and flow analysis across SIPRNET, JWICS, and coalition network segments
• Architect and document Gigamon sensor grid topologies for evolving DIA segments including cross-domain and coalition environments; lead design reviews, ECPs, and as-built documentation
• Develop SOPs and runbooks; brief findings and risk assessments to DIA government leads; mentor junior engineers on platform operations and IC cybersecurity practices

Required Qualifications:

• 5-7 years of hands-on experience in network engineering, network security engineering, or a closely related discipline within a DoD or IC environment
• Demonstrated experience deploying and operating Gigamon appliances (GigaVUE HC, T-Series, HD-Series, or equivalent) in production networks
• Experience designing and troubleshooting IP networks including routing protocols (BGP, OSPF), VLANs, spanning tree, and network segmentation
• Experience supporting or operating within DoD or IC classified computing environments including SIPRNET, JWICS, or equivalent enclaves
• Experience documenting network topologies and maintaining as-built diagrams and configuration baselines
• Proficiency with GigaVUE Fabric Manager (GFM) and Gigamon CLI for appliance configuration and policy management
• Knowledge of packet capture and traffic analysis concepts including TAP/SPAN, deduplication, filtering, and flow metadata
• Understanding of network security principles including firewalls, IDS/IPS, proxies, and zero-trust architecture as applied to classified environments
• Familiarity with SIEM platforms (Splunk, ArcSight, or equivalent) and how network visibility feeds enhance detection fidelity
• Working knowledge of multi-domain architectures: LAN, WAN, data center, and virtualized/SDN environments
• DoD 8570 IAT Level II certification — one or more of the following required: 
  • CompTIA Security+ CE
  • GIAC Security Essentials (GSEC)
  • Cisco CyberOps Associate / CCNA Security
  • CySA+, CND, or SSCP
• DoD 8570 CSSP Infrastructu