Senior Systems Administrator

Company Overview Hexagon US Federal is a proxy-governed subsidiary of Hexagon AB providing an ever expanding portfolio of Hexagon Technologies to U.S. Federal Government organizations, including defense and intelligence agencies to meet a variety of mission requirements. With our unique capabilities and experience we transform state-of-the-art commercial technology into mission-specific solutions for our customers, partnering with them to solve their most challenging problems. Quick Hits Employees: 200 Operating Locations: Chantilly, VA (HQ); Huntsville, AL; Lanham, MD, and other client sites across the US
We are seeking a Senior Systems Administrator in Lanham, MD.


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.
A day in the life of a Senior Systems Administrator

• 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

Key Responsibilities:

• 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

This role is for you if you:

• A self-starter who takes ownership and follows through without constant direction
• Comfortable being the go-to IT presence in an office environment
• Able to balance hands-on support with infrastructure-level responsibilities
• Calm under pressure and capable of navigating high-impact incidents
• Collaborative, but equally effective working independently

What we are expecting from you (i.e. the qualifications you must have):

• 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

Required Level of Security Clearance: None Expected Travel: 5-10% Work Environment:

• Hybrid role based in Lanham, MD (minimum two days onsite per week)
• Occasional travel to Chantilly, VA and Huntsville, AL may be required
• Expected to support critical incidents outside of standard business hours when necessary

Physical and Mental Demands:

• The physical and mental demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodation may be made to enable individuals with disabilities to perform these functions.
• Ability to remain in a stationary position and operate a computer for extended periods.
• Occasional ability to move or transport items up to 25 pounds.
• Communicate effectively in English (verbal, written) and possess visual and auditory acuity for tasks and safety.
• Manage multiple tasks, prioritize, and maintain focus in dynamic environments.
• Demonstrate strong problem-solving, critical thinking, and analytical skills.
• Maintain consistent attendance, punctuality, and high professional standards.

What we will provide in return: - 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 Hexagon US Federal is an Equal Employment Opportunity Employer. We comply with all applicable federal anti-discrimination laws and provide reasonable accommodations for qualified individuals with disabilities and disabled veterans in its job application procedures. If you have any difficulty using our online system and need an accommodation due to a disability, you may use the following email address, View email address on click.appcast.io and/or phone number View phone number on click.appcast.io to contact us about your interest in employment with Hexagon US Federal.

All qualified applicants will receive consideration for employment without regard to protected veteran status, disability status, or any other protected class covered by federal, state, or local law. Hexagon US Federal participates in E-Verify.
At Hexagon US Federal, we prioritize a secure and thorough hiring process. Be aware that we will never extend an employment offer without a careful review and interview process, and all official communications from our representatives will come from a verified Hexagon US Federal email address, never requesting upfront fees or sensitive information.