IT Helpdesk Support Specialist

• Provide Tier 2/Tier 3 support for Linux and Windows desktop and server systems.
• Troubleshoot and resolve hardware, software, OS, and network issues across multiple environments and security domains.
• Support system patching, configuration management, system monitoring, and log review for both Linux and Windows systems.
• Assist in user management and access control, including permissions, security groups, and authentication services (e.g., Active Directory, IDM).
• Respond to helpdesk tickets, track and resolve incidents efficiently, and escalate when appropriate.
• Assist with routine security checks, vulnerability remediation, and documentation of processes.
• Provide support for networking issues involving DNS, DHCP, and IP configuration (basic troubleshooting).
• Collaborate with cross-functional teams to ensure continuity and efficiency in IT operations.
• Assist in developing helpdesk workflows and processes to provide outstanding user support and efficient cross-team operations.
• Document troubleshooting steps, system configurations, and standard operating procedures (SOPs).
• Assist in monitoring and generating reports for maintenance and Cyber RMF continuous monitoring from tools such as Elastic, SolarWinds, Ansible, and BigFix (training provided).

• 4+ years of relevant IT support experience, including advanced desktop/server troubleshooting.
• Experience administering Linux (RHEL/CentOS) and Windows Server/Desktop environments.
• Familiarity with networking fundamentals: TCP/IP, subnets, VLANs, firewalls, DNS/DHCP.
• Experience supporting secure environments or classified systems (DoD or similar).
• Active DoD Secret clearance required.
• Must meet DoD IAT Level II (Security+ or equivalent) certification requirements.
• Excellent communication skills and ability to explain technical concepts to non-technical users.
• Proven ability to work independently and within a team, adapting to rapidly shifting priorities.

• Experience with Red Hat Satellite, Ansible, IDM, or related tools.
• Familiarity with Active Directory, GPOs, and Microsoft infrastructure services.
• Exposure to network monitoring and log aggregation tools (e.g., Elastic, SolarWinds).
• Experience using ticketing systems and following ITIL best practices.
• Understanding of virtualized environments, particularly Nutanix AHV or VMware.
• Experience with endpoint management tools such as BigFix.
• TS/SCI eligibility is a plus.
• Industry certifications such as RHCSA/RHCE, MCSA, CompTIA Linux+, CCNA, or ITIL v4 are highly desirable.

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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
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  Values:
  
  
  
  Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  
  
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  100% Employee Owned:
  
  
  
  We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  




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  Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
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  Flexible schedules
  
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  6% 401k match with immediate vesting up to $9k annually
  
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  Semi-annual bonus eligibility (July and December)
  
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  Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
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  Up to $10,000 in annual educational reimbursement
  
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  Other company funded benefits, like life and disability insurance
  
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  Optional zero deductible Blue Cross/Blue Shield health insurance plan
  




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  Track Record of Success:
  
  
  
  We have grown every year since our founding in 1993.
  
  

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com