Demo

System Administrator

Jobs via Dice
Fairfax, VA Full Time
POSTED ON 6/6/2026
AVAILABLE BEFORE 7/6/2026
Job Description

ECS is seeking a System Administrator to work remotely .

As a leading provider of managed cybersecurity services, ECS provides a highly tailored and customized offering to each customer. Our team is responsible for protecting both our customers and corporate environment at ECS. Our mission is very broad, and our team is agile. We will look toward your unique skills to approach and solve problems in your own way. Whether engineering a system to address a technical hurdle, protecting customers data or consulting on a wide range of security topics. You are empowered to engage and lead across multiple groups.

Job Responsibilities:

  • Integrate with, and support, a team of subject matter experts in a highly agile environment to implement best-in-class, multi-Cloud solutions for large DoD programs.
  • Work within a Hybrid Cloud engineering team to design, build, implement, and maintain Microsoft Office 365 security solutions to include Microsoft Defender.
  • Identify enterprise and customer-specific issues in Microsoft|Office 365, conduct in-depth diagnostics, and develop innovative solutions to resolve issues.
  • Develop tools and scripts to automate deployment, troubleshooting, monitoring, and diagnostics activities.
  • Coach and mentor new hires, and support training initiatives/professional development to improve team capacity and performance.
  • Function as a technical escalation point within the team.
  • Develop a Cloud-Hosting System Concept of Operations (CONOPS)

Salary Range: $140,000 - $165,000

Required Skills

General Description of Benefits

  • 4 years of progressive experience supporting Microsoft 365 Application Services.
  • Deploy and Manage STIGs in DoD Hybrid environments.
  • 1 years of experience supporting Microsoft Defender for Endpoint, Intune, EntraID
  • Microsoft | Office 365 Admin Application and Services in a hybrid server environment
  • Understanding of M365|O365 licensing
  • PowerShell scripts creation
  • Experience in Active Directory, MFA and Security Compliance
  • Prior experience providing user support and conducting user software and hardware training to formulate technology solutions and ensure effective safeguarding and sharing of enterprise data
  • Experience supporting mission-critical, 24x7 systems.
  • IAT II Certifications: CompTIA Security and/or Certified Information Systems Security Professional (CISSP) certification

Desired Skills

  • Proficiency supporting Windows and Linux Server|Desktop endpoints
  • Proficiency with Cloud networking and troubleshooting Cloud networking environments (IP networking, VPNs, DNS, and load balancing)
  • An understanding of firewalls, NAT, SSL|TLS, etc.
  • Experience in one or more automation languages (ARM|Bicep Templates, BASH, Python)
  • Familiarity with Identity and Authentication processes(SSO|Federation, AD|Azure AD etc.)
  • Experience with Azure subscriptions, Azure RBAC, Purview, Intune, Microsoft Endpoint Configuration Manager (MECM), Microsoft 365.
  • Active Top Secret security clearance

Desired Certifications:

  • Microsoft MD-102 certification
  • Azure AZ-104 certification
  • Microsoft 365 Certified: Enterprise Administrator Expert or similar certifications.

#ECS1

ECS is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

ECS is a leading mid-sized provider of technology services to the United States Federal Government. We are focused on people, values and purpose. Every day, our 3200 employees focus on providing their technical talent to support the Federal Agencies and Departments of the US Government to serve, protect and defend the American People.

Salary : $140,000 - $165,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a System Administrator?

Sign up to receive alerts about other jobs on the System Administrator career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$83,502 - $107,152
Income Estimation: 
$104,896 - $133,785
Income Estimation: 
$123,198 - $153,566
Income Estimation: 
$67,510 - $85,676
Income Estimation: 
$85,059 - $120,527
Income Estimation: 
$90,936 - $120,778
Income Estimation: 
$83,502 - $107,152
Income Estimation: 
$101,597 - $131,824
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Jobs via Dice

  • Jobs via Dice Sioux, SD
  • Our Client is seeking a Software/Hardware Imaging/Deployment Technician who can prepare, configure, and tests computer hardware and software before deploym... more
  • 1 Day Ago

  • Jobs via Dice Newport, RI
  • Job ID: 2613344 Location: Newport, RI, US Date Posted: 2026-06-04 Category: Engineering and Sciences Subcategory: Mechanical Engr Schedule: Full-Time Shift... more
  • 1 Day Ago

  • Jobs via Dice Johnston, RI
  • Dice is the leading career destination for tech experts at every stage of their careers. Our client, TekisHub Consulting Services, is seeking the following... more
  • 1 Day Ago

  • Jobs via Dice Honolulu, HI
  • Looking for an opportunity to make an impact? At Leidos, innovation is at the heart of everything we do. Powered by a team as diverse as it is talented, we... more
  • 1 Day Ago


Not the job you're looking for? Here are some other System Administrator jobs in the Fairfax, VA area that may be a better fit.

  • SYSTEM HIGH CORPORATION Washington, DC
  • *This position requires a TS/SCI Clearance and a minimum of two years of Special Access Program Experience* At System High Corporation—a Top Washington-Are... more
  • 11 Days Ago

  • Koniag Government Services Washington, DC
  • Arlluk Technology Solutions, LLC, a Koniag Government Services company, is seeking a System Administrator with a Secret Clearance to support ATS and Depart... more
  • 1 Day Ago

AI Assistant is available now!

Feel free to start your new journey!