Tier II Help Desk Specialist

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

At 3Si, our mission is to make your world, safer. As a global leader in innovative security technology, we help businesses and law enforcement prevent and respond to crime through field-proven solutions and trusted partnerships. With over 100+ years of combined experience through our merged companies, our expertise drives measurable impact in communities worldwide.

We specialize in GPS tracking, video surveillance, and integrated response technologies that deter theft and accelerate criminal apprehension. Designed for retail, financial institutions, law enforcement, and more, our solutions combine cutting‑edge tools with unmatched response capabilities. Through our exclusive DirectToDispatch™ technology, verified crime alerts are sent directly to law enforcement dispatch centers in real time—bypassing traditional third‑party monitoring delays—to enable rapid, precise response when it matters most.

At 3Si, meaningful work makes a difference. We’re a purpose-driven team that values innovation, trust, and collaboration. From engineering to sales and support, every role contributes to our mission to protect communities and make the world safer. We offer a hybrid, flexible work culture, competitive benefits, and the chance to grow alongside a team of passionate, dedicated professionals.

Join us—and be part of something that matters.

The Tier II Help Desk Specialist will be responsible for providing support for the Integration Operations Center (IOC) for numerous security applications including but not limited to video management systems (VMS), access control systems (ACS), and Physical Security Information Management (PSIM) system. This role is responsible for advanced technical troubleshooting and analysis methods for these applications.

Tier II personnel are responsible for assisting Tier I personnel in solving basic technical problems, investigating elevated technical issues by confirming the validity of the problem and searching for known solutions related to these more complex issues.

Activities may include, but are not limited to software repair, diagnostic testing, and the utilization of remote desktop tools used to take over the user’s machine for the sole purpose of troubleshooting and finding a solution to the problem.

Primary Responsibilities

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

Knowledge, Skills, And Abilities

• Must have experience with troubleshooting and resolving IT issues on desktops
• 1-5 years of help desk experience (compensation based on experience)
• Basic Networking skills
• Remote desktop experience (RDP, DameWare, RemotelyAnywhere)
• Server experience preferred

Qualifications

• Associate or Bachelor's degree in IT or a related field preferred
• Equivalent technical experience may be considered in lieu of formal education

Additional Comments

This is an on-site position in Alexandria, VA, with separate openings for day and night shifts. Each position follows a fixed, 12‑hour schedule:

• Day shift: 10:00 AM–10:00 PM
• Night shift: 10:00 PM–10:00 AM

Shift hours are not flexible. Please indicate your preferred shift when applying.

• Hours: Sunday - Saturday (40+hr-week/12‑hour shifts, rotating 2 on, 3 off, 2 on, 2 off, 3 on, 2 off schedule, and occasional holidays)
• For initial onboarding and training, this position requires applicants to be on site Monday – Friday during core business hours (8:30-5:00). Following successful knowledge transfer of job responsibilities and skill verification, the candidate’s schedule will be a 12‑hour shift schedule mentioned above.
• Active Secret or higher U.S. Government security clearance required
• Successful candidates must pass a comprehensive background investigation
• Pre-employment drug screening is required

Salary Range $70k - $85k per year