Senior Systems Administrator — TS/SCI, On-Call

amtechnologies; Suitland (MD); On-site; USD 180,000 - 200,000; Full time

Benefits offered by this job

401(k) with company match

Disability insurance (short/long-term)

Paid time off

Job summary

A&M Technologies, Inc. is seeking an experienced Systems Administrator III to support a federal O&M program. This senior role focuses on maintaining mission-critical enterprise systems in a high-availability government environment, with leadership responsibilities and on-call duties.

The ideal candidate will have extensive Windows and Linux expertise, virtualization, enterprise storage, DR/COOP planning, and strong documentation skills, along with DoD security compliance and TS clearance.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience)
• 8+ years of Systems Administration experience
• Active Top Secret Clearance
• DoD 8140/8570 compliant certification (Security+ CE or equivalent)
• Strong experience administering Windows Server 2016/2019/2022 and RHEL
• Experience supporting VMware infrastructure
• Experience supporting enterprise storage solutions
• Experience with enterprise backup and disaster recovery
• Experience performing patch management and vulnerability remediation
• Experience with Active Directory, Group Policy, DNS, and DHCP
• Experience creating technical documentation
• Strong troubleshooting skills across Windows, Linux, virtualization, and enterprise infrastructure
• Ability to support on-call operations and after-hours maintenance

Responsibilities

• Administer, maintain, and troubleshoot enterprise Windows and Red Hat Enterprise Linux (RHEL) server environments
• Perform installation, configuration, maintenance, hardening, and lifecycle management of enterprise infrastructure
• Support VMware virtualization environments including VMware Cloud Foundation (VCF), virtual machines, clusters, and virtual desktop infrastructure (VDI)
• Support Cisco HyperFlex infrastructure and enterprise storage platforms including NetApp
• Perform server patching, vulnerability remediation, and system hardening in accordance with DoD security requirements
• Maintain Active Directory, Group Policy, DNS, DHCP, certificate services, and authentication services
• Support enterprise backup, replication, disaster recovery (DR), and Continuity of Operations (COOP) planning
• Perform root cause analysis for production incidents and provide advanced troubleshooting support
• Maintain Citrix infrastructure and other enterprise application platforms
• Support enterprise monitoring solutions including SolarWinds
• Produce and maintain technical documentation including: SOPs, Runbooks, As-built documentation, System diagrams, Capacity plans, Disaster Recovery documentation
• Evaluate emerging technologies and develop proof-of-concepts for government review
• Participate in Configuration Control Board (CCB) activities
• Coordinate infrastructure upgrades, migrations, and modernization efforts
• Support Help Desk escalations and participate in an on-call rotation
• Provide after-hours support for Priority 1 outages with a required 2-hour response

Skills

8+ years experience

Windows Server

RHEL

DoD 8140/8570

Active Directory

VMware

Patch management

Troubleshooting

Documentation

On-call support

Education

Bachelor's degree in IT/CS/Engineering

Tools

VMware Cloud Foundation (VCF)

NetApp Storage

Citrix

SolarWinds

Job description

A&M Technologies, Inc. is seeking an experienced Systems Administrator III to support a federal O&M program. This senior role focuses on maintaining mission-critical enterprise systems in a high-availability government environment, with leadership responsibilities and on-call duties.

The ideal candidate will have extensive Windows and Linux expertise, virtualization, enterprise storage, DR/COOP planning, and strong documentation skills, along with DoD security compliance and TS clearance.