Network Administrator / Network Engineer

Node.digital
Arlington, VA

Network Administrator/ Network Engineer

Location: Arlington, VA

Must have an active Secret Clearance

Node 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.

Node is seeking a motivated network engineer to implement, maintain and support the lab network infrastructure.


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.

Required Skills:
- 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



Desired Skills:
- 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


Required Education:
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.


Desired Certifications:
- Sec+
- Network+
- CCNA

Company Overview:

Node.Digital is an independent Digital Automation & Cognitive Engineering company that integrates best-of-breed technologies to accelerate business impact.
Our Core Values help us in our mission. They include:

OUR CORE VALUES
Identifying the~RIGHT PEOPLE~and developing them to their full capabilities

Our customer’s “Mission” is our “Mission”. Our~MISSION FIRST~approach is designed to keep our customers fully engaged while becoming their trusted partner

We believe in~SIMPLIFYING~complex problems with a relentless focus on agile delivery excellence

Our mantra is “~Simple*Secure*Speed~” in delivery of innovative services and solutions

We are proud to offer competitive compensation and benefits packages to include

  • Medical
  • Dental
  • Vision
  • Basic Life
  • Health Saving Account
  • 401K
  • Three weeks of PTO
  • 10 Paid Holidays
  • Pre-Approved Online Training
Posted 2025-09-22

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