Senior Systems Administrator TS/SCI w/ Poly | DoD Ops

A&M Technologies, Inc.; Suitland (MD); On-site; USD 180,000 - 200,000; Full time

Benefits offered by this job

Health insurance

401(k) with company match

Life insurance

Disability insurance

PTO

Job summary

A&M Technologies, Inc. is seeking an experienced Systems Administrator III to support a federal O&M program.

This role is a senior member of the infrastructure team responsible for maintaining mission-critical enterprise systems in a high-availability government environment. The ideal candidate will have extensive experience administering Windows and Linux, virtualization platforms, enterprise storage, disaster recovery, system hardening, patch management, and troubleshooting complex

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 Red Hat Enterprise Linux (RHEL).
• Experience supporting VMware infrastructure.
• Experience supporting enterprise storage solutions.
• 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), VMs, clusters, and VDI.
• Support Cisco HyperFlex infrastructure and enterprise storage platforms including NetApp.
• Perform server patching, vulnerability remediation, and system hardening per DoD security requirements.
• Maintain Active Directory, Group Policy, DNS, DHCP, certificate services, and authentication services.
• Support enterprise backup, replication, DR, and COOP planning.
• Perform root cause analysis for production incidents and advanced troubleshooting.
• Maintain Citrix infrastructure and other enterprise application platforms.
• Support enterprise monitoring solutions including SolarWinds.
• Produce and maintain technical documentation: SOPs, Runbooks, As-built docs, system diagrams, capacity plans, DR docs.
• 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 on-call rotation.
• Provide after-hours support for Priority 1 outages with a 2-hour response.

Skills

Windows Server administration

Linux administration

VMware virtualization

Active Directory management

Troubleshooting

Documentation

On-call support

Education

Bachelor's degree in IT / CS or related field

Tools

VMware Cloud Foundation (VCF)

SolarWinds

NetApp Storage

Citrix

PowerShell

Python

Job description

A&M Technologies, Inc. is seeking an experienced Systems Administrator III to support a federal O&M program.

This role is a senior member of the infrastructure team responsible for maintaining mission-critical enterprise systems in a high-availability government environment. The ideal candidate will have extensive experience administering Windows and Linux, virtualization platforms, enterprise storage, disaster recovery, system hardening, patch management, and troubleshooting complex