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Fidelis Administrator - TS​/SCI CI Poly

Job in College Park, Prince George's County, Maryland, 20741, USA
Listing for: ENS Solutions, LLC
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support, Systems Administrator
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Fidelis Administrator - Active TS/SCI with CI Poly

Overview

Fidelis Administrator - Active TS/SCI with CI Poly

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.

Responsibilities
  • Perform systems administration of cyber tools and server systems across multiple classification domains.
  • Provide day-to-day operations, monitoring, and problem resolution for client/server/storage/network devices.
  • Install, configure, and manage operating system and application software as necessary.
  • Support Linux and Windows systems engineering efforts in system design, evaluation, solution engineering, software development, or system administration.
  • Analyze root causes and resolve complex issues using industry knowledge.
Qualifications
  • 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 Direct Sensor 10G, Mail DLP, and Command Post, 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
  • Education and experience combinations: HS diploma or GED with 7+ years of experience, Associate’s with 5+ years, or Bachelor’s with 3+ years
  • Active DoD 8570 IAT Level II Certification (Security+ CE, CCNA - Security, GSEC, SSCP, CySA+, GICSP, or CND)
  • Ability to obtain DoD 8570.01-M CSSP - Infrastructure Support (IS) certification within 60 days of start date
Optional Qualifications
  • Experience with Microsoft Windows and Linux server operating systems
  • Experience as a SOC analyst, Hunt analyst, or DLP analyst, or prior use of Fidelis DLP in administrative/monitoring capacity
  • Familiarity with DoD Risk Management Framework
  • Experience automating deployments and configuration management
  • Experience as a network administrator or systems engineer
  • Experience using Active Directory to manage Windows policies
  • Knowledge of technology stack layers (network, application frameworks, database systems, vendor solutions)
  • Knowledge of Git, Atlassian tools (Jira, Confluence), and Visio-like diagram tools
Benefits

ENS Solutions, LLC is a service-disabled veteran-owned IT consulting and management firm serving the DoD and IC in areas such as ICAM, Software Development, Cyber and Network Security, System Engineering, IT support, and related services. We emphasize excellence, scalability, and collaborative infrastructure delivery.

Why ENS?
  • Free Platinum-Level Medical/Dental/Vision coverage
  • 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
Seniorities
  • Mid-Senior level
Employment type
  • Full-time
Job function
  • Other
  • Industries: IT Services and IT Consulting

Location:

College Park, MD

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