Tier II IT Help Desk Specialist — DoD Enterprise Support

A&T Systems, Inc.; Maryland; On-site; USD 65,000 - 85,000; Full time

Job summary

A&T Systems, Inc. is seeking an IT Help Desk Support Specialist – Tier II to provide intermediate technical support at Aberdeen Proving Grounds (APG), MD under the IMCS IV contract.

The role ensures secure, compliant IT operations and mission readiness by resolving escalated issues and maintaining end-user systems. Responsibilities include troubleshooting hardware, software, and networking problems, configuring desktops and peripherals, and supporting enterprise apps, email, and authentication

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 troubleshooting

Networking fundamentals

Enterprise IT environments

DoD 8570/8140 certification

Security clearance eligibility

DCWF Code 411 compliance

Tools

ITSM ticketing systems

Remote support tools

ITIL knowledge

Job description

A&T Systems, Inc. is seeking an IT Help Desk Support Specialist – Tier II to provide intermediate technical support at Aberdeen Proving Grounds (APG), MD under the IMCS IV contract.

The role ensures secure, compliant IT operations and mission readiness by resolving escalated issues and maintaining end-user systems. Responsibilities include troubleshooting hardware, software, and networking problems, configuring desktops and peripherals, and supporting enterprise apps, email, and authentication