Tier II Help Desk: On-Site Security Tech (Alexandria)

3Si; Alexandria (VA); On-site; USD 70,000 - 85,000; Full time

Job summary

3Si is hiring a Tier II Help Desk Specialist for an on-site role in Alexandria, VA. You will support the Integration Operations Center with PSIM, VMS, and ACS applications, performing advanced troubleshooting and collaborating with Tier 1 to resolve issues.

The position features a fixed 12‑hour schedule (day or night) with on-site onboarding, background check, and potential government clearance requirements. Competitive benefits accompany a mission-driven team.

Qualifications

• Desktop IT troubleshooting experience.
• 1–5 years of help desk experience.
• Basic networking skills.
• Remote desktop tools experience.
• Server experience preferred.
• Associate or Bachelor's degree in IT preferred.

Responsibilities

• Ensure functionality of the PSIM application on a day-to-day basis.
• Install and troubleshoot the PSIM software.
• Maintain proper and accurate documentation for all technical issues.
• Monitor and support ticket workflows.
• Configure/integrate subsystems into PSIM software.
• Escalate issues to Tier 3 when needed.
• Perform other duties and responsibilities as directed by the supervisor

Skills

Desktop IT support

Help desk experience

Basic networking

Remote desktop tools

Server experience

Education

IT degree preferred

Tools

RDP

DameWare

RemotelyAnywhere

Job description

3Si is hiring a Tier II Help Desk Specialist for an on-site role in Alexandria, VA. You will support the Integration Operations Center with PSIM, VMS, and ACS applications, performing advanced troubleshooting and collaborating with Tier 1 to resolve issues.

The position features a fixed 12‑hour schedule (day or night) with on-site onboarding, background check, and potential government clearance requirements. Competitive benefits accompany a mission-driven team.