Senior System Administrator

• Lead Microsoft Office 365 administration, including Teams, OneDrive, Exchange, SharePoint, and related enterprise tools.
• Manage software distribution systems and Office 365 thick client deployment.
• Administer and design Group Policies for Office 365 and Windows environments.
• Manage Windows Active Directory infrastructure, including domain controllers, DNS, DHCP, and file servers.
• Oversee user and group permissions, security policies, and enterprise identity management.
• Lead Intune Mobile Device Management administration, including app deployment and enterprise configuration.
• Administer enterprise email policies, including mail flow, forwarding, and spam filtering.
• Manage enterprise print services, including deployment and secure print configurations.
• Troubleshoot and resolve hardware/software issues across desktops, laptops, and servers.
• Diagnose and resolve issues in Windows 11, Microsoft Office, and enterprise applications.
• Design and implement hardware and software solutions for system improvements.
• Perform system utilization reviews, capacity planning, and recommend technical/process enhancements.
• Lead server deployments for new and existing projects.
• Document system deployments and configurations.
• Travel 1-2 times annually to new MTSI office locations for IT infrastructure setup.

• 10+ years of IT experience, including 7+ years as a Systems Administrator.
• Strong background in Microsoft Windows enterprise environments.
• Proficiency in Office 365 administration (Teams, OneDrive, Exchange Online, Azure AD).
• Expertise designing and managing Group Policy and Windows Active Directory.
• Experience configuring and troubleshooting Windows operating systems.
• Proficiency with image deployment systems (e.g., MDT).
• Experience managing enterprise-level MDM systems.
• Hands-on experience with user and group permission management in Active Directory.
• Familiarity with system monitoring tools.

• Bachelor's degree in Computer Science, Information Systems, or related technical field, Bachelor's degree in a non-technical field with sufficient IT experience will be considered.

• Enterprise-level certifications (e.g., MCSA, MCP).

• Demonstrated professionalism and strong problem-solving abilities.
• Excellent verbal and written communication skills.
• Strong organizational and time management skills.
• Customer service oriented with strong collaboration skills.
• Proactive approach to identifying and resolving IT issues.
• Ability to lift up to 50 lbs. (e.g., PC equipment installation).
• Skilled in writing technical documentation and end-user guides.
• Ability to manage multiple projects and support tickets simultaneously.
• Experience in a corporate IT environment.
• Willingness to travel as needed.

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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