Senior Network engineer US Security clearance

Argo Cyber is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize the severity of breaches, develop mitigation plans, and assist with the restoration of services. Argo Cyber is seeking a motivated network engineer to implement, maintain and support the lab network infrastructure.

• Leverage advanced analytical and technical skills to design and implement infrastructure solutions that enhance mission execution and support command decision‑making.
• Support the integration of new technologies and equipment within lab environments, including development and refinement of standard operating procedures (SOPs) and policies.
• Assess network topology and device configurations, identify critical security vulnerabilities, and recommend security best practices.
• Provide user support for Virtual Private Networks (VPNs), Virtual Desktop Infrastructure (VDI) such as Citrix, as well as MacOS and iOS platforms.
• Troubleshoot and resolve a broad range of technical issues, from basic to complex network problems.
• Implement granular access controls, monitor system performance and accessibility, establish and maintain backup protocols, and ensure system security.
• Diagnose and resolve complex enterprise storage issues across local and wide area networks, including replication strategy support and remediation of storage‑related incidents.
• Design, build, and maintain robust network environments by configuring routers, switches, and firewalls, as well as updating network devices and performing IP address audits.
• Ensure optimal network performance by troubleshooting issues, enforcing system standards, and collaborating with stakeholders to optimize infrastructure.
• Secure network systems through policy enforcement, access controls, and continuous monitoring.

• U.S. Citizenship
• Must have an active DoD Secret clearance, TS/SCI clearance is preferred
• Must be able to obtain DHS Suitability
• 5+ years of directly relevant experience in network administration
• Proficiency with multiple operating systems, including Linux/Unix and MacOS
• Strong knowledge and experience with routers, switches, firewalls, and VPNs
• Experience and knowledge of networking and network administration
• Skilled in working with virtual desktop environments (Citrix, VMware)
• Must be able to work collaboratively across physical locations

• Familiarity with Palo Alto firewalls and Cisco switches
• Experience with converged infrastructure solutions (e.g., Flex Pod) and Net App storage systems
• Proficiency with Cisco Intersight, vCenter, and virtualization automation/optimization
• Strong documentation skills for technical procedures and SOPs
• Capable of creating and maintaining network diagrams
• Demonstrated experience in network design, implementation, and performance tuning
• Project management capabilities and excellent time‑management skills
• Expertise in hardening network devices and infrastructure for enhanced security

BS Computer Science, Computer Engineering, Computer Information Systems, Computer Systems Engineering or related degree; or HS Diploma and 7+ years network administration, network engineering or systems administration experience.

• DoD 8140.01 IAT Level II
• Network+
• CCNA