Senior Systems Administrator III (TS/SCI w/ CI Poly required)

A&M Technologies, Inc.; Suitland (MD); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

401(k) with company match

Paid time off up to 18 days + holidays

Life insurance

Job summary

A&M Technologies, Inc. in Suitland, MD is seeking a Senior Systems Administrator III to join the O&M team, supporting a high-availability federal environment.

The role requires TS/SCI clearance, DoD 8140/8570 certification, and extensive experience with Windows, RHEL, VMware, storage, and disaster recovery; you will lead troubleshooting, mentor staff, and contribute to modernization.

On-site, with strong emphasis on documentation, compliance, and after-hours support.

Qualifications

• Bachelor's degree in IT or a related field.
• 8+ years of Systems Administration experience.
• Active Top Secret clearance.
• DoD 8140/8570 compliant certification (Security+ CE or equivalent).
• Experience with Windows Server 2016/2019/2022.
• Experience with Red Hat Enterprise Linux (RHEL).
• Experience with VMware infrastructure.
• Experience with enterprise storage (NetApp, etc.).
• Patch management and vulnerability remediation.
• Active Directory, DNS, DHCP, and Group Policy experience.
• Ability to create technical documentation and runbooks.
• Strong troubleshooting across Windows, Linux, virtualization, and enterprise infra.
• On-call operations and after-hours maintenance.

Responsibilities

• Administer Windows and RHEL server environments.
• Install, configure, harden, and lifecycle-manage enterprise infrastructure.
• Support VMware virtualization including VCF and VDI.
• Support Cisco HyperFlex and storage platforms like NetApp.
• Perform patching, vulnerability remediation, and hardening per DoD rules.
• Maintain Active Directory, GPO, DNS, DHCP, certificate services.
• Support backup, DR, and COOP planning.
• Root-cause analysis for production incidents and advanced troubleshooting.
• Maintain Citrix infrastructure and other platforms.
• Support SolarWinds and other monitoring solutions.
• Produce SOPs, Runbooks, diagrams, capacity plans, and DR docs.
• Evaluate emerging tech and develop PoCs for government review.
• Participate in CCB activities and infrastructure upgrades.
• Coordinate migrations and modernization efforts.
• Assist Help Desk escalations and on-call rotations.
• Provide after-hours support for Priority 1 outages with 2-hour response.

Skills

Systems Administration

Windows Server

Linux (RHEL)

VMware

Active Directory

DNS/DHCP

Scripting (PowerShell/Bash/Python/Ansb

Education

Bachelor's degree

Tools

VMware Cloud Foundation (VCF)

Cisco HyperFlex

NetApp Storage

Citrix

SolarWinds

SQL Server

Microsoft Exchange

VDI

Job description

Systems Administrator III (Senior)

Location:Suitland, MD (On-Site)
Clearance:Active Top Secret/SCI w/ CI Poly (Required)
Certification:DoD 8140/8570 Compliant (Security+ CE or qualifying certification required)
Employment Type:Full-Time

Position Summary

A&M Technologies is seeking an experiencedSystems Administrator IIIto support a federal Operations & Maintenance (O&M) program. This individual will serve as a senior member of the infrastructure team responsible for maintaining mission-critical enterprise systems supporting a high-availability government environment.

The ideal candidate will possess extensive experience administering Windows and Linux environments, virtualization platforms, enterprise storage, disaster recovery, system hardening, patch management, and troubleshooting complex infrastructure issues. The candidate will also provide technical leadership, mentor junior administrators, and support modernization initiatives.

Primary 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.

Required 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
  • Red Hat Enterprise Linux (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.

Desired Qualifications

• VMware Certified Professional (VCP)
• Red Hat Certified System Administrator (RHCSA) or RHCE
• Experience with:
  • Cisco HyperFlex
  • VMware Cloud Foundation (VCF)
  • NetApp Storage
  • Citrix
  • SolarWinds
  • SQL Server
  • Microsoft Exchange
  • Virtual Desktop Infrastructure (VDI)
• Experience supporting Cross Domain Solutions (CDS)
• Experience supporting Multiple Independent Levels of Security (MILS)
• Experience with STIG implementation and compliance.
• Experience supporting DoD or Intelligence Community environments.
• Knowledge of SECNAV M-5239.2.
• Experience with automation using PowerShell, Bash, Python, or Ansible.
• Experience supporting enterprise GIS environments.
• Experience participating in disaster recovery exercises.

Pay & Benefits Highlights

Compensation

• Competitive salary and benefits package.
• Employee referral bonuses of up to $10,000 for eligible hires.
• Additional bonus opportunities for exceptional performance and contributions to business development and company growth.

Health & Wellness

• Comprehensive medical, dental, and vision coverage for employees and eligible dependents.
• Deductible reimbursement of up to $1,000 for employee-only coverage and up to $2,000 for family coverage upon meeting plan deductibles.

Income Protection

• 100% company-paid short-term disability insurance.
• 100% company-paid long-term disability insurance.
• 100% company-paid accidental death and dismemberment (AD&D) insurance.
• Company-paid life insurance coverage up to $150,000.

Retirement

• 401(k) plan with immediate vesting upon eligibility. Employees become eligible after six months of service.
• Pre-tax and Roth contribution options available.
• Company Match:A&M provides a dollar-for-dollar match on employee contributions up to 6% of eligible compensation.
• Non-Elective Contribution (NEC):A&M provides an additional 6% company contribution to all eligible participants, regardless of employee contributions.

Paid Time Off

• Up to 18 days of flexible paid time off (PTO).
• Additional PTO awarded based on years of service: +2 days after 3 years, +4 days after 6 years, and +7 days after 10 years.
• 10 paid holidays annually, including up to four floating holidays.

Work-Life Balance

• Flexible work schedules, including flex time and compressed work schedules, based on contract and project requirements.