Senior Systems Administrator

Hexagon US Federal • Chantilly, VA

3d • Hybrid

About The Position

We are seeking a highly capable Senior Systems Administrator to serve as the primary IT lead for our Lanham, MD office while operating as part of a distributed enterprise IT operations team. This role requires a strong technical foundation across hybrid infrastructure, a high degree of ownership, and the ability to operate independently in a fast-paced, compliance-driven environment.
This role requires a minimum of two days onsite per week, with additional onsite presence as needed to support business operations, projects, or critical incidents.

Requirements

• 8+ years of experience in systems administration, infrastructure support, or a similar role
• Proven experience managing hybrid IT environments (on-premises and cloud)
• Strong hands-on experience with Microsoft 365, preferably within GCC High or other regulated environments
• Deep experience with VMware ESXi and virtual infrastructure management
• Strong knowledge of Windows Server, Active Directory, Group Policy, and endpoint management
• Experience supporting data center infrastructure and operations
• Demonstrated ability to troubleshoot and resolve complex, cross-domain technical issues
• Strong communication and customer service skills, with the ability to support both technical and non-technical users
• Ability to work independently, prioritize effectively, and take ownership of systems and issues

Responsibilities

• Serve as the primary IT owner for the Lanham office, ensuring reliability, performance, and user support
• Maintain and support hybrid infrastructure, including VMware ESXi environments, virtual machines, and cloud services
• Administer and optimize Microsoft 365 GCC High (Entra ID, Exchange Online, SharePoint, Teams)
• Support and contribute to data center operations, including system health, maintenance, and incident response
• Act as a key escalation point for complex technical issues across the enterprise
• Partner with a distributed team of system administrators to support enterprise-wide help desk operations
• Drive improvements in system performance, standardization, and operational efficiency
• Support implementation and enforcement of security and compliance controls (CMMC, NIST 800-171, etc.)
• Respond to and lead troubleshooting during outages or critical incidents
• Provide hands-on support for onsite needs including workstation deployment, hardware replacement, and troubleshooting
• Manage and monitor virtual environments across on-prem and cloud platforms
• Participate in ticket triage, escalation, and resolution across a multi-site environment
• Maintain system documentation, procedures, and operational runbooks
• Collaborate with vendors and managed service providers when required
• Support infrastructure-related projects and site-specific initiatives

Benefits

• Competitive health care plans with savings accounts
• Dental and vision plans
• 401k with 100% company match up to 6%, with immediate vesting on company match
• Life and disability insurance
• Learning Management System with robust offerings
• Tuition Reimbursement Program
• Flexible working arrangements where possible
• 13 paid holidays per year
• Veterans’ focused Employee Resources Group with regular educational sessions and communications
• Leadership Development Program with multiple learning options

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 101-250 employees