Tier II IT Help Desk Specialist: DoD Security & Support

A & T Systems, Inc.; Aberdeen, Northern (MD, KY); Hybrid; USD 60,000 - 76,000; Full time

Job summary

A & T Systems, Inc. is seeking an IT Help Desk Support Specialist – Tier II to provide intermediate-level technical support at Aberdeen Proving Grounds, MD.

You will resolve escalated issues from Tier I, maintain secure and compliant IT operations, and support mission readiness across end-user systems and services under the IMCS IV contract. Responsibilities include troubleshooting hardware, software, and networking, configuring desktops and devices, supporting enterprise applications and

Qualifications

• Experience troubleshooting Windows operating systems and standard enterprise software applications.
• Working knowledge of networking fundamentals including TCP/IP, DNS, DHCP, and Active Directory.
• Experience supporting enterprise-level IT environments.
• DoD 8570/8140 compliant certification (e.g., Security+, A+, Network+, or equivalent).
• Ability to obtain and maintain required security clearance.
• Meet DoD Cyber Workforce Framework (DCWF) Code 411 requirements.

Responsibilities

• Troubleshoot and resolve hardware, software, operating system, and network connectivity issues escalated from Tier I.
• Install, configure, and maintain desktops, laptops, printers, mobile devices, and peripherals.
• Provide support for enterprise applications, email systems, collaboration platforms, and authentication services.
• Perform account management tasks including password resets, group membership updates, and access troubleshooting.
• Escalate unresolved or complex issues to support or appropriate technical teams.
• Assist with system imaging, deployments, upgrades, and technical refresh initiatives.

Skills

Windows OS troubleshooting

Networking basics

Enterprise IT environments

Cybersecurity standards

Education

DoD 8570/8140 certification

Tools

ITSM tools

Job description

A & T Systems, Inc. is seeking an IT Help Desk Support Specialist – Tier II to provide intermediate-level technical support at Aberdeen Proving Grounds, MD.

You will resolve escalated issues from Tier I, maintain secure and compliant IT operations, and support mission readiness across end-user systems and services under the IMCS IV contract. Responsibilities include troubleshooting hardware, software, and networking, configuring desktops and devices, supporting enterprise applications and