Hexagonusfederal14d ago

Senior Systems Administrator

United States·Chantilly,Lanham-Seabrook,LanhamEX40senior

DevOps & InfrastructureSystems AdministratorInfrastructure & Cloud

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Quick Summary

Requirements Summary

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.

Technical Tools

DevOps & InfrastructureSystems AdministratorInfrastructure & Cloud

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.

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

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

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

None

5-10%

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

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.