IT Support Specialist III

Mission Support & Test Services, LLC (MSTS) • North Las Vegas, NV

7d • $28 - $42 • Onsite

About The Position

Mission Support and Test Services (MSTS) is seeking an IT Support Specialist III to join the Service Desk team supporting the Nevada National Security Sites (NNSS). The role provides Tier III support for complex user-facing hardware, software, and network issues, helping maintain reliable technology and business continuity in a national security environment. The primary work location is the Losee Road Facility in North Las Vegas, Nevada, with a Monday-through-Thursday 4/10 schedule that is subject to change. Flexible hours, off-shift work, or work exceeding 40 hours per week may occasionally be required to support operational demands and projects.

The specialist installs, configures, upgrades, monitors, and optimizes IT equipment and services, including Microsoft 365, and supports account administration, licensing compliance, Active Directory, and endpoint management. The position also develops IT procedures and documentation, provides user training, mentors junior team members, reports technical issues and project progress to management, and contributes to special projects. The employee is accountable for following environment, safety, health, and quality requirements.

The position requires an associate’s degree or equivalent and at least three years of progressive experience. A valid driver’s license is required. Candidates must be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship and includes background screening and drug testing. A pre-placement physical examination, including a drug screen, is required; random drug testing may also apply. The annual salary range is $27.81–$41.72. MSTS describes its full-time benefits as including medical, dental, and vision coverage, a pension and 401(k), paid time off, 96 hours of paid holidays, relocation assistance for employees located more than 75 miles from the work location, and tuition assistance and reimbursement.

Requirements

• Associate’s degree or equivalent with at least 3 years of progressive experience.
• Demonstrated expertise providing Tier III technical support and taking complex technical problems through resolution.
• Advanced knowledge of standards, practices, and procedures for hardware, operating systems, and application software.
• Ability to troubleshoot technical issues and identify modifications to applications needed to meet changing user requirements.
• Strong end-to-end troubleshooting skills across systems, networks, and applications.
• Experience developing test plans, overseeing testing, verifying reliability, and managing deployments.
• Proficiency in Active Directory, including user, group, and computer management and Group Policy administration.
• Proficiency with SCCM for imaging, software deployment, patch management, and endpoint administration.
• Experience with VMware and virtual environments or server virtualization.
• Experience administering, configuring, and supporting Office 365 (Microsoft 365) services and applications.
• Comprehensive support and troubleshooting experience with Mac and Windows operating systems.
• Familiarity with Linux systems and environments.
• Understanding and experience with Azure cloud services, including Azure AD.
• Experience with Intune for mobile device management and endpoint management.
• Ability to design, implement, and troubleshoot Group Policies.
• Proficiency in scripting languages such as PowerShell, Bash, or Python.
• Experience automating routine IT tasks and workflows.
• Exceptional oral and written communication skills, including explaining technical concepts to nontechnical users.
• Strong customer-service orientation and commitment to positive user experiences.
• Ability to work effectively as a team member in a collaborative environment.
• Ability to work flexible hours if required to support critical IT operations.
• Ability to maintain technical knowledge and follow industry trends in automation equipment, hardware, operating systems, and application software.
• Ability to work more than 40 hours per week or off-shift when operational demands require it.
• Valid driver’s license.
• Ability to obtain and maintain a DOE Q-level security clearance; U.S. citizenship is required for the clearance.
• Successful completion of required pre-employment screening, including a drug test and background review; a pre-placement physical examination including a drug screen is required.

Nice To Haves

• Familiarity with Splunk or another log management platform.

Responsibilities

• Diagnose and resolve complex Tier III hardware, software, and network issues, minimizing downtime and supporting business continuity.
• Manage and prioritize requests through the ticketing system and provide support by phone, chat, and in person.
• Analyze recurring problems, identify root causes, and implement sustainable solutions.
• Lead installation, configuration, and upgrades of hardware, operating systems, and application software.
• Oversee equipment relocation and setup at the North Las Vegas facility while minimizing disruption to users.
• Monitor hardware and software performance and address potential vulnerabilities or inefficiencies.
• Administer Microsoft Office 365 services, including user provisioning, security configurations, and service features.
• Maintain awareness of software license agreements and support cost-effectiveness and compliance with DOE and NNSS requirements.
• Maintain Active Directory distribution groups and the Office 365 instance.
• Develop and modify IT processes and procedures to improve efficiency and service delivery.
• Prepare documentation, procedures, and reports for IT systems and administrative functions.
• Develop and deliver user training on hardware, software, and IT best practices.
• Mentor and guide junior team members.
• Monitor conformance to IT plans and initiatives and report technical problems, development issues, and related activities to management.
• Participate in and complete special projects and initiatives assigned by management.
• Accept accountability for environmental, safety, health, and quality processes within personal control and follow applicable regulations and procedures.
• Promptly correct or report hazards and participate in MSTS environment, safety, health, and quality initiatives.

Benefits

• Medical insurance
• Dental insurance
• Vision insurance
• Pension
• 401(k)
• Paid time off
• 96 hours of paid holidays
• Relocation assistance for employees located more than 75 miles from the work location
• Tuition assistance and reimbursement

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Associate degree