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Fidelis Administrator - Active TS/SCI with CI Poly

ENS Solutions, LLC
Reston, VA Full Time
POSTED ON 11/26/2025
AVAILABLE BEFORE 3/25/2026
Work individually or in a small integrated team to develop innovative solutions to enable secure and reliable operations of enterprise computer systems. Develop new concepts and processes and analyze root causes and resolve complex issues utilizing your knowledge of industry. Performs systems administration of cyber tools sets and server systems connected to networks across multiple classification domains. Provide support to developmental and operational systems including day-to-day operations, monitoring, and problem resolution for all client/server/storage/network devices, etc. Install, configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and evaluation, solution engineering, software development, or system administration.

Requirements

  • 3 years of experience as a system administrator
  • Experience with installing or configuring devices, applications, and security tools, including Fidelis
  • Experience maintaining, engineering, deploying, and configuring Fidelis DLP and XPS appliances, including DirectSensor 10G, Mail DLP, and CommandPost, through both iLO and connected directly to the appliance via SSH or Console Port
  • Experience operating and maintaining Linux servers, including operating systems and applications, patching, and other updates
  • Ability to analyze and respond to Fidelis system logs, security logs, and other events to troubleshoot Fidelis appliance stack and network issues to ensure it remains fully operational
  • Active TS/SCI clearance; willingness to take a polygraph exam
  • HS diploma or GED and 7 years of experience as a system administrator, Associate's degree and 5 years of experience as a system administrator, or Bachelor's degree and 3 years of experience as a system administrator
  • Active DoD 8570 IAT Level II Certification, including Security CE, CCNA - Security, GSEC, SSCP, CySA , GICSP, or CND Certification
  • Ability to obtain a DoD 8570.01-M Cybersecurity Service Provider (CSSP) - Infrastructure Support (IS) certification, including CEH, CySA , GICSP, SSCP, CHFI, CFR, Cloud , or CND within 60 days of start date

Optional Qualifications:

  • Experience with operating and maintaining Microsoft Windows and Linux servers to include operating systems
  • Prior experience as a SOC analyst, Hunt analyst, or DLP analyst, or have previously used Fidelis DLP in an administrative & monitoring capacity
  • Familiarity with DoD Risk Management Framework
  • Experience automating deployments and configuration management
  • Experience as a network administrator or systems engineer
  • Experience in using Active Directory to manage Windows policies
  • Knowledge of different layers of the technology stack, including network, application frameworks, database systems, and vendor solutions
  • Knowledge of Git and Atlassian tools, including Jira and Confluence and Microsoft Visio (or like product) graphic and flowchart design

Benefits

Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly regarded IT consulting and management firm. ENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. Our strong technical and management experts have been able to maintain a standard of excellence in their relationships while delivering innovative, scalable and collaborative infrastructure to our clients.

Why ENS?

  • Free Platinum-Level Medical/Dental/Vision coverage, 100% paid for by ENS
  • 401k Contribution from Day 1
  • PTO 11 Paid Federal Holidays
  • Long & Short Term Disability Insurance
  • Group Term Life Insurance
  • Tuition, Certification & Professional Development Assistance
  • Workers' Compensation
  • Relocation Assistance

Salary.com Estimation for Fidelis Administrator - Active TS/SCI with CI Poly in Reston, VA
$105,410 to $127,803
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