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Security Systems Administrator

About the role

We are seeking a highly skilled IT Help Desk & Microsoft 365 Administrator to support a growing government contracting organization based in Bethesda, MD. This role is responsible for delivering Tier I–III technical support while administering and securing Microsoft 365 and SharePoint environments within a CMMC and ISO-compliant framework. 

The ideal candidate is comfortable supporting 50–300 end users, understands federal contractor compliance requirements, and can operate effectively in a secure, regulated IT environment. 


What you'll do

End-User Support 

  • Provide Tier I–III help desk support for 50–300 employees (onsite and remote) 
  • Troubleshoot hardware, software, network, and cloud-based systems 
    Manage onboarding/offboarding processes (account provisioning, permissions, device setup) 
  • Support laptops, mobile devices, printers, and conference room technology 
  • Maintain IT documentation and knowledge base resources 


Microsoft 365 & SharePoint Administration 

  • Administer Microsoft 365 environment (Exchange Online, Teams, OneDrive, SharePoint Online, Azure AD/Entra ID) 
  • Manage user accounts, licensing, MFA, and conditional access policies 
  • Configure and maintain SharePoint sites, permissions, workflows, and document libraries 
  • Support collaboration tools and governance policies 
  • Monitor system performance, security alerts, and service health 


Compliance & Security (CMMC / ISO) 

  • Support CMMC and ISO 27001 (or similar) compliance requirements 
  • Assist with implementation and documentation of security controls 
  • Maintain secure configurations aligned with NIST 800-171 
  • Participate in internal audits and remediation activities 
  • Support vulnerability management, patching, and endpoint protection 
  • Enforce data protection, access control, and retention policies 


Infrastructure & Systems Support 

  • Manage endpoint security tools and MDM (Intune preferred) 
  • Support VPN, firewall, and basic networking troubleshooting 
  • Maintain backups and disaster recovery procedures 
  • Coordinate with third-party MSPs or security vendors as needed 


Qualifications


Required Qualifications 

  • 3–7+ years of IT Help Desk or Systems Administration experience 
  • Hands-on experience administering Microsoft 365 and SharePoint Online 
  • Experience supporting environments with 50–300 users 
  • Working knowledge of: 
  • CMMC requirements 
  • NIST 800-171 
  • ISO 27001 (or similar security framework) 
  • Experience with Azure AD / Entra ID, MFA, and conditional access 
  • Strong documentation and communication skills 
  • Ability to work onsite in Bethesda, MD as needed 


Preferred Qualifications 

  • Proven experience architecting and deploying secure enclaves (e.g., GCC High, Azure Government) designed specifically for Controlled Unclassified Information (CUI) workloads. 
  • Hands-on expertise implementing and managing technical controls (MFA, FIPS 140-2 encryption, and log retention) to meet NIST SP 800-171 and CMMC Level 2 requirements. 
  • Experience managing the day-to-day operations of a Covered Contractor Information System (CCIS), including continuous monitoring, vulnerability remediation, and patch management. 
  • Proficiency in developing and maintaining technical compliance artifacts, such as the System Security Plan (SSP) and Plan of Action and Milestones (POA&M) 
  • CompTIA Security+, Network+, or similar certification 
  • Microsoft certifications (MS-900, MS-102, SC-900, etc.) 
  • Experience in a government contracting (GovCon) environment 
  • Familiarity with eDiscovery, data loss prevention (DLP), and retention policies 
  • Experience preparing for CMMC Level 2 assessment 

The pay range for this position is between $90,000 and $170,000 per year. This position is benefits-eligible. Our suite of benefits includes Health, Dental, Vision, 401k w/ match, Gym Membership discounts, Volunteer Paid Time Off, and a generous PTO package. We'd love to tell you more! Apply today!


We believe great talent comes from many backgrounds and experiences. We are proud to be an Equal Opportunity Employer and make all employment decisions based on merit, qualifications, and business needs. We are committed to maintaining a workplace free from discrimination and harassment, consistent with all applicable laws.

Our team provides superior services, solutions and subject matter expertise to solve our customer's most challenging requirements in cyber, land, air, sea and space.  We believe in empowering our employees to deliver exceptional results across our federal, state and private sector clients.  We are values-led and mission driven.  We can't wait to work with you!

Information Technology

Bethesda, MD

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