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Systems Administrator Cybersecurity IT Support Network Administrator

Operations Infrastructure Lead; Tier II Washington D.C., DC,

Job in Washington, District of Columbia, 20022, USA
Listing for: ESR Healthcare
Full Time position
Listed on 2026-01-24
Job specializations:
  • IT/Tech
    Systems Administrator, Cybersecurity, IT Support, Network Administrator
Job Description & How to Apply Below
Position: Operations Infrastructure Lead (Tier II) Washington D.C., DC, USA

Operations Infrastructure Lead (Tier II) Washington, DC, USA Full Time

A premier strategic services firm that meets IT and service needs for commercial and government clients is seeking a full-time Operations Infrastructure Lead (Tier II). This position is based in Washington, DC.

The Operations Infrastructure Team Lead is a hands-on role requiring troubleshooting skills and the ability to mentor technical team members. The candidate should be familiar with industry best practices and implementing a least privileged access model.

ACTIVE SECRET CLEARANCE PREFERRED

Responsibilities:
  • Monitor system and network performance
  • Troubleshoot systems/network issues, identify root causes, and implement corrective actions
  • Administer Windows Active Directory, Group Policies, and Certificate Services
  • Manage Azure Active Directory services
  • Oversee Intune Mobile Device Management
  • Manage Citrix and remote access solutions
  • Handle Multi-factor authentication, Single Sign-On, and Smart Card (PIV) services
  • Manage PIV card certificates and credential mapping, enforcing PIV authentication for staff
  • Manage Network Attached Storage (NAS) and network shares
  • Create and maintain comprehensive system documentation
  • Participate in Business Continuity/Disaster Recovery planning, building, and testing, including network security, performance, and hardware acquisition
  • Perform maintenance tasks such as system backups, validation, image management, event log reviews, vulnerability mitigation, and compliance
  • Document all actions, practices, procedures, and processes
    • Experience:
  • Coordinate and manage diverse technical support tasks
  • Evaluate new IT systems and their environmental impact
  • Manage private PKI infrastructure
  • Develop secure automated solutions using scripting languages like Power Shell
  • Manage lifecycle of supported systems
  • Create automated packages for system deployment and configuration
    • Qualifications and Requirements:
  • Bachelor's degree in Computer Science or a closely related field
  • Minimum of 8 years of IT experience
  • At least two of the following certifications:
    • CompTIA A+
    • CompTIA Network+
    • CompTIA Security+
    • MCSA:
      Windows 10
    • MCSE:
      Desktop Infrastructure
  • ITIL or equivalent quality certification
  • Active Security Clearance
    • #J-18808-Ljbffr
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