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Sr. Network Security Engineer

Telos Corp.
paid time off, tuition reimbursement, 401(k)
United States, Virginia, Ashburn
19886 Ashburn Road (Show on map)
Jun 23, 2025
Job Title
Sr. Network Security Engineer
Job Description

The most security-conscious organizations trust Telos Corporation to protect their vital IT assets. The reputation of our company rests on the quality of our solutions and the integrity of our people. Explore what you can bring to our solutions in the areas of cyber, cloud and enterprise security.

Be a part of the Telos culture and see what sets us apart! Telos offers an excellent compensation package with benefits that include generous paid time off, medical, dental, vision, tuition reimbursement, and 401k. Our employees enjoy more than just a great work environment!

This position will be Remote.

Telos is looking for a Senior Network Security Engineer to work on the Army Global Unified Network (AGUN) - Increment 1 (INC1) program.

The AGUN program is a highly demanding mission and requires expert technical and professional management to support the Army's global wide area network and security infrastructure. This role is remote and will be supporting a large and complex network migration and operations for the US Army.

Primary Responsibilities:



  • Operate and maintain secure network solutions operated as a centralized enterprise capability for the United States Army
  • Partner with key stakeholders and technical experts to perform legacy environment discovery, assessing current capabilities, configurations, and requirements to provide network firewall migration support for the Army global network.
  • Analyze and understand complex firewall security zones and policies with the ability to transform policies between multiple vendor firewall devices while meeting mission requirements.
  • Support secure access solutions leveraging zero trust network access (ZTNA) including support for creation of new access policies and maintenance of existing policies.
  • Integrate capacity planning and scaling of network and security stack environments into the overall operational support processes and staff.
  • Collect, investigate, and identify network resource management strategies and techniques to meet capacity and performance requirements
  • Work with information assurance teams and the AGUN cybersecurity service provider (CSSP) to ensure compliance to DoD standards to assist with maintenance of the network security posture.
  • Document designs, diagrams, drawings, and technical narratives using wiki technologies and common diagram and drawing tools.

Job Requirements

Basic Qualifications:



  • Minimum of a Bachelor's degree with 12+ years' experience or Master's degree with 10+ years of experience (additional years of directly applicable experience may be accepted in lieu of a degree).
  • Require active DoD IAT Level II (i.e. Security+) certification or equivalent prior to start.
  • Expert understanding of networking and virtualization of firewalls including VSYS in a multi-tenant environment
  • Demonstrated experience with networking concepts such as LAN, WAN, BGP, TCP/UDP, IPSec, VPN, Routing(L2/L3), and firewalls in a virtualized environment.
  • Demonstrate experience in one or more of the following enterprise network management tools such as Palo Alto Panorama, Cisco Prime, Cisco DNA, or Junos Space.
  • Demonstrate experience in system hardening of network infrastructure to include DoD STIG implementation
  • Must have experience in working with two or more of the following vender network technologies: Cisco, Juniper, Palo Alto, Dell, RAVPN, GlobalProtect, or AppGate.
  • Experience with the following protocols: SFTP, SSH, SCP, MPLS, SNMP, NTP.
  • Must be able to work as part of a team to execute troubleshooting and resolve complex network security issues.
  • Must have excellent written and verbal communication skills.
  • Must be willing to work non-standard shifts to accomplish network migration objectives and goals
  • Must be able to interface with customers.
  • Must be willing to travel up to 10% of the time.



Preferred Qualifications:



  • Army/DISA migration experience.
  • Hands on experience with Palo Alto Next Generation Firewalls (NGFW)
  • Knowledge and use of NetSecOps technologies including git, Gitlab CI/CD, Ansible, Terraform, Puppet, and network element managers
  • Working knowledge and understanding of Python
  • Demonstrate expertise in design and improvement of complex and geographically enterprise networks.
  • Expert knowledge of US Army security requirements for network infrastructure.



The successful candidate must meet eligibility requirements to access sensitive information, which requires US citizenship.

Telos maintains a drug-free workplace and will conduct drug testing on all applicants who have accepted an offer of employment

Telos Corporation participates in the E-Verify program. Therefore, any employment with Telos will also be contingent upon confirmation from the Social Security Administration ("SSA") and/or the Department of Homeland Security ("DHS") of your authorization to work in the United States. Telos offers excellent compensation packages including salary commensurate with experience and benefits to meet your needs for today and the future.

Telos Corporation and its subsidiaries are committed to equal opportunity for all, without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, age, veteran status, disability, genetic information, or any other protected characteristic. Telos Corporation will make reasonable accommodations for known physical or mental limitations of otherwise qualified employees and applicants with disabilities unless the accommodation would impose an undue hardship on the operation of our business. If you are interested in applying for an employment opportunity and feel you need a reasonable accommodation pursuant to the ADA, please contact us at 1-800-283-1911. If you require relay service assistance, please click on the following link to review information on your state's relay service: https://www.fcc.gov/accessibility

Telos Corporation is an EEO/AA employer.

Job Type
Full-Time
Location
Ashburn, VA 20147 US (Primary)
Telos offers an excellent compensation packages including salary commensurate with experience and benefits to meet your needs for today and the future. Telos and its subsidiaries are an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.
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