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System Administrator 3 (Onsite)

Serigor Inc

Job Title: System Administrator 3 (Onsite)


Location: Richmond, VA


Duration: 06 Months with possible extension


Job Description:

The client seeks 2 Systems Administrators to support a secure, stable, and high-performing hybrid IT environment. This role administers servers, identity systems, and enterprise services across on-premises and cloud platforms.

The Systems Administrator is a hands-on technical role focused on disciplined execution of operational processes, including patching, monitoring, backup, and system maintenance. The position works under the direction of the Director of Infrastructure & Operations and collaborates with Network Engineering, Information Security, End User Services, and Application/Data teams.

Key Responsibilities


Infrastructure Administration

  • Administer Windows Server environments (on-premises and cloud)
  • Manage Active Directory, Group Policy, DNS, and DHCP
  • Support Microsoft 365 services (Exchange Online, Entra ID/Azure AD)
  • Maintain system performance, availability, and configuration
Patch Management & Vulnerability Remediation
  • Execute structured patching for servers and core systems
  • Coordinate with leadership on scheduling and system impact
  • Support vulnerability remediation aligned to security priorities
  • Validate patches prior to deployment
  • Track patch compliance and status
Security & Compliance Support
  • Implement security controls defined by the Information Security Office
  • Support identity and access management practices, including MFA
  • Assist with system hardening, logging, and monitoring integrations
  • Provide support for audits and compliance activities
Monitoring & Incident Response
  • Monitor systems and respond to alerts and operational issues
  • Provide Tier 2/3 support for infrastructure incidents
  • Participate in incident response and escalation processes
  • Contribute to root cause analysis and service improvements
Backup & Disaster Recovery
  • Administer backup and recovery solutions
  • Perform and validate backup and restore testing
  • Support recovery objectives (RTO/RPO)
Change Management & Operations
  • Follow defined change management processes
  • Execute infrastructure changes in a controlled manner
  • Participate in CAB or similar governance processes
Cross-Team Collaboration
  • Partner with Network Engineering on infrastructure dependencies
  • Coordinate with End User Services on user-impacting changes
  • Support Application/Data teams on system integrations
  • Communicate system status, risks, and issues to leadership
Required Qualifications
  • Experience administering Windows Server environments
  • Strong knowledge of Active Directory and Group Policy
  • Experience supporting Microsoft 365 (Exchange Online, Entra ID/Azure AD)
  • Experience with patch management and system maintenance
  • Familiarity with backup and recovery solutions
  • Basic understanding of networking concepts
Preferred Qualifications
  • Experience in government or regulated environments
  • Experience with hybrid infrastructure (on-premises and Azure)
  • Familiarity with NIST or similar frameworks
  • Experience with virtualization (VMware or Hyper-V)
  • Exposure to monitoring, SIEM, or endpoint management tools
Knowledge, Skills, and Abilities
  • Strong troubleshooting and problem-solving skills
  • Ability to manage multiple operational tasks and priorities
  • Effective communication and teamwork across technical groups
  • Ability to follow structured processes and governance standards
  • Focus on system reliability, security, and continuous improvement
Working Conditions
  • Office-based environment
  • Occasional after-hours support for maintenance or incidents
  • Limited travel between office locations may be required
Additional Information
  • This role supports core Infrastructure & Operations functions and contributes to the agency's ability to deliver secure and reliable IT services. The Systems Administrator operates within defined governance processes to ensure consistency, stability, and risk reduction across the environment.



Skills:

Skills


Required / Desired


Amount


of Experience


Windows Server administration


Required


5


Years


Active Directory administration


Required


5


Years


Group Policy management


Required


3


Years


DNS and DHCP administration


Required


3


Years


Microsoft 365 administration


Required


3


Years


Entra ID (Azure AD) administration


Required


2


Years


Server patch management


Required


3


Years


System monitoring and alert response


Required


3


Years


Backup and recovery administration


Required


3


Years


Virtualization (VMware and/or Hyper-V)


Required


3


Years


File and print services


Required


2


Years


PowerShell scripting


Required


2


Years


Operating system troubleshooting


Required


5


Years


Change management participation


Required


2


Years


Incident response support


Required


2


Years


Root cause analysis participation


Required


2


Years


Documentation maintenance


Required


2


Years


Maintenance window execution


Required


2


Years


Ticket/work management systems


Required


3


Years


MFA administration/support
Vacancy posted 5 days ago
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