Network Engineer

Castalia Systems•Arlington, TX

25d•Onsite

About The Position

Castalia Systems 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 of the severity of breaches, develop mitigation plans, and assist with the restoration of services. Castalia is seeking a motivated network engineer to implement, maintain and support the lab network infrastructure.

Requirements

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.
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
Secret clearance with ability to get a DHS Suitability
Must be a U.S. Citizen

Nice To Haves

TS/SCI clearance
Familiarity with Palo Alto firewalls and Cisco switches
Experience with converged infrastructure solutions (e.g., FlexPod) and NetApp 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
DoD 8140.01 IAT Level II
Network+
CCNA

Responsibilities

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.