Network Engineer - Threat Management Gateway

5 - 7 years experience  •  Electronics

Salary depends on experience
Posted on 08/11/17
5 - 7 years experience
Salary depends on experience
Posted on 08/11/17


Sotera Defense Solutions is currently seeking a Network Engineer-Threat Management Gateway with a minimum of a current Top Secret clearance located in Quantico, VA.


Responsibilities include:

  • Maintain the overall health of technologiesassociated with Gateway and Firewall Services.
  • Provide   support for Gateway and Firewall related technologies.
  • Monitor the health of Gateway and Firewall Services with Government-provided event management tools.
  • Resolve TMG/F5 tickets escalated from the service desk
  • Messaging Status Report (to be incorporated into the EDM Weekly Status Report, CDRL A00A) in accordance with required response times.
  • Provide documentation, guidance and instruction to the Tier 1 service desk for handling standard Gateway and Firewall Services related incidents, work orders and service requests.
  • Submit and execute Gateway and Firewall Services related Request for Change (RFC) tasks.
  • Coordinate incident tickets between Tier II and III sections as well as Engineering and other sections.
  • Support the change management process by submitting requests through Change Approval Board, participating in a Change Review Board, and providing information to support decision making.
  • Escalate issues to third party product vendors.
  • Implement   monitoring tool thresholds   and conduct proactive event remediation.
  • Monitor and implement, upon management approval, guidance from the USCYBERCOM.
  • Configure   Secure Socket Layer access and logging on the devices.
  • Provide analysis   and remediation for DISA Security Technical Implementation
  • Guidelines (STIG) for all responsibletechnologies in preparation for annual Commanders Cyber Readiness Inspections (CCRI).


Minimum requirements include:

  • BS in related field (Preferred)
  • A minimum of 5 years of experience in networkengineering, security and crendential management
  • Minimum of Top Secret clearance, TS/SCI preferred
  • Experience with VMWare
  • Experience with F5 1500 and 4200 series Local Traffic Manager as a reverse proxy for all client external facing websites
  • IAT III - (CISA, GCIH, GCED, CASP or CISSP (Associate)
  • F5 Technology Specialist Certified



  • F5 Architecture Design for Microsoft Exchange
  • F5 Big-IP Access Policy Manager
  • F5 Big-IP Local Traffic Manager
  • F5 Big-IP Global Traffic Manager
  • F5 Certified Solutions Expert (CSE)
  • The Engineer shall provide Tier III level Security Application Front End support. 
  • The Engineer shall configure F5 Big-IP platforms and support Microsoft Threat Management Gateway (TMG) servers for access from the internet to internal Marine Corps application servers.
  • The Engineer shall provide capabilities in supporting Boundary Security Devices, Active Directory, and firewalls to provide F5, TMG and Wireless Application Protocol (WAP) services.  
  • The Engineer shall configure   the F5 services to support Windows Server, Exchange, SharePoint, networking, PKI/SSL and othertechnologies as applicable.
  • The infrastructure is a mixed environment of VMware based and physical based servers. These tasks require capabilities in VMware Virtualization, and VMware cloud to perform the specialized EDM Boundary Security Device tasks.


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