Tau Six, an agile small company delivering cybersecurity and systems integration services to the US National Security market, has an immediate need for a Senior Network Engineer in support of a Department of Defense customer. We are seeking a motivated, career and customer-oriented experienced information technology professional to join our team in the Columbia, MD area to provide subject matter expertise and best practices in networking technology, design, and management.

CLEARANCE REQUIRED: Active Top Secret / SCI US Government clearance


  • Design and maintains computer networks, including wide and local area networks, VPNs, routers and other physical hardware.
  • Install and configuring network equipment as necessary
  • Establish and maintain firewalls and other cybersecurity systems to keep data and communications protected
  • Monitors networks to improve network performance for all systems
  • Troubleshoot, resolve, and communicate networking issues to other employees and management
  • Implement disaster recovery procedures in coordination and partnership with customer and other technical teams
  • Maintaining current knowledge and understanding of security and networking best practices to offer the best solutions and protection to networks and systems
  • Partners with the customer to develop and implement strategic technology initiatives.
  • Collaborates on critical projects to ensure that networking issues are addressed throughout the project life cycle.
  • Evaluates vendors’ offerings in providing telecommunications services, products, or support.
  • Collates key telecommunication metrics, including wide and local area performance and availability.
  • Advises the customer on normal and exception-based processing of security authorization requests.
  • Supports the development of assessment and authorization (A&A) documentation for compliance with DoD Cybersecurity policy and agency guidance, including DoD 8500 series, CNSS 1253, and NIST special publications.
  • Implements required cybersecurity policy, including Risk Management Framework (RMF) for DoD IT, security technical implementation guides (STIGs), automated scans, test and evaluations, and vulnerability assessments.

Desired Skills:

  • Comprehensive understanding of network technologies, protocols, devices, and software to include:
    • TCP/IP, OSPF, MPLS, and EIGRP protocols
    • Cisco networking equipment, software, and monitoring systems
    • Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS)
    • Routers, switches, and firewalls
    • Bulk encryption devices and key management
    • Wide area network (WAN) technologies
    • Software Defined Networking (SDN) and Virtualized Networks (Cloud)
  • Ability to analyze and evaluate networks, identify issues and provide solutions to ensure networks are operating efficiently
  • Ability to design, implement and troubleshoot network and security infrastructure
  • Ability to manage several projects simultaneously from design to implementation
  • Ability to communicate technical information to other technical team members but also to coworkers in other departments who may not have knowledge of networking technical terminology
  • Familiar with Continuous Integration/Continuous Delivery
  • Familiar with Agile development practices
  • Familiar with Microsoft Windows and Linux operating systems
  • Familiar with the Risk Management Framework (RMF), its controls, requirements and documentation

Security Clearance:

  • Active DoD Top Secret/SCI


    • 5+ years of networking experience (within Department of Defense or U.S. Intelligence Community preferred)

    Minimum Education Required/Desired:

    • High school diploma with networking certifications
    • Bachelor’s Degree in a technical discipline with networking certifications preferred