Systems Administrator
The Systems Administrator will be responsible for the day-to-day installation, configuration, administration, monitoring, maintenance, troubleshooting, and sustainment of servers, operating systems, virtual infrastructure, enterprise applications, and associated IT services. The customer environment includes on-premises infrastructure, Microsoft 365, Microsoft Azure IL2 cloud services, virtualized systems, data centers, networks, applications, and end-user services.
The position will work closely with Systems Engineers, Network Engineers, Cloud Engineers, Cybersecurity personnel, and Technical Support staff to maintain reliable, secure, and mission-ready IT services.
Key Responsibilities
- Install, configure, administer, maintain, monitor, and troubleshoot physical and virtual servers, operating systems, applications, and associated enterprise services.
- Monitor and troubleshoot network-dependent services such as DNS, DHCP, NTP, SNMP, HTTP/HTTPS, SSH, LDAP/LDAPS, and SMTP.
- Administer Microsoft Windows Server environments and associated infrastructure services.
- Support Active Directory, Group Policy, user and computer objects, authentication, permissions, and access-control functions.
- Support Microsoft 365 services and associated enterprise applications.
- Administer and support Microsoft Configuration Manager and related endpoint/system-management capabilities.
- Support VMware and virtual desktop infrastructure, including physical and virtual computing environments.
- Perform routine system monitoring and analyze availability, capacity, performance, security, and operational health.
- Troubleshoot hardware, operating system, application, authentication, connectivity, and configuration problems.
- Perform server, operating system, application, and service updates and assist with patching activities required by applicable cybersecurity directives.
- Support vulnerability remediation and system hardening activities in coordination with Cybersecurity personnel.
- Maintain system configurations and ensure changes are implemented and documented in accordance with established configuration- and change-management processes.
- Support system backup, restoration, continuity, and recovery activities.
- Perform routine preventive maintenance and system-health checks.
- Support installation, configuration, testing, upgrade, and deployment of new hardware and software.
- Assist with technology-refresh activities and replacement of End-of-Life (EOL) and End-of-Support (EOS) systems.
- Develop and maintain Standard Operating Procedures (SOPs), technical procedures, system documentation, configuration records, and troubleshooting guides.
- Prepare After Action Reports and technical documentation following significant outages, maintenance events, upgrades, or system changes when required.
- Create, update, resolve, and document incidents and service requests using the Government-approved ticket-management system.
- Coordinate with Technical Support personnel to resolve issues escalated beyond desktop/help-desk support.
- Escalate complex engineering problems to the Senior Systems Engineer or appropriate Network, Cloud, or Cybersecurity Engineer.
- Coordinate with Government and contractor technical personnel to diagnose and restore interrupted IT services.
- Assist with inventory, asset accountability, and technical documentation associated with supported systems.
- Provide technical assistance to users and other IT staff when required.
- Must have 4–6+ years of progressively responsible systems administration or enterprise IT infrastructure experience.
- Must have an active DoD Secret security clearance.
- Must meet applicable DoD 8140/DCWF requirements for Work Role 451 at the Intermediate proficiency level.
- Experience administering Microsoft Windows Server environments.
- Experience with Active Directory, Group Policy, DNS, DHCP, user accounts, permissions, and authentication services.
- Experience installing, configuring, and maintaining physical and virtual servers.
- Experience supporting VMware or comparable enterprise virtualization technology.
- Experience supporting Microsoft 365 and Microsoft enterprise technologies.
- Experience performing system and application patching, upgrades, and maintenance.
- Experience troubleshooting server hardware, operating systems, applications, network connectivity, and enterprise services.
- Knowledge of system backup, restoration, and disaster-recovery practices.
- Experience working with enterprise monitoring, endpoint-management, or systems-management tools.
- Familiarity with cybersecurity hardening, vulnerability remediation, and configuration-management requirements.
- Ability to create and maintain technical documentation, SOPs, troubleshooting procedures, and configuration records.
- Strong analytical and troubleshooting abilities.
- Strong verbal and written communication skills.
- Ability to work independently at a supported site while coordinating with geographically dispersed enterprise engineering teams.
- Bachelor's degree in Computer Science, Information Technology, Engineering, Cybersecurity, or related technical discipline.
- CompTIA Security+ or comparable certification.
- Microsoft certification applicable to Windows Server, Microsoft 365, endpoint management, or Azure.
- VMware VCP or comparable virtualization certification.
- ITIL Foundation certification or experience working in an ITIL-based environment.
- Experience with Microsoft Configuration Manager (SCCM/MECM).
- Experience with PowerShell scripting and administrative automation.
- Experience with Azure or hybrid-cloud environments.
- Experience with ServiceNow or comparable enterprise ITSM platforms.
- Familiarity with DISA STIGs and DoD vulnerability-management requirements.
- Previous USMC, Navy, DISA, or DoD enterprise IT experience.
- Experience operating within geographically dispersed enterprise environments.
Agil3 Technology Solutions LLC ("A3T") is a Northern Virginia based, ISO 9001, ISO 20000-1 & ISO 27001 Certified, Women-Owned (WOSB) and Service-disabled Veteran-Owned (SDVOSB) small business. A recent recipient of the prestigious Washington Technology TOP 50 (ranking #9, and on the list for last 4 years!), A3T is experiencing industry leading recognition and growth. In addition to the CEO’s recognition as an “All-Star Entrepreneur”, A3T is recognized by Inc Magazine as one of the fastest growing companies in the country, by Vet 50 as Fastest Growing Veteran-Owned Businesses, and is featured in CyberSecurity Ventures / Cybercrime Magazine! “As a go-to Women-Owned Cybersecurity company in US and internationally”. As part of our growth, we are looking for YOU to join our growing team.
A3T offers excellent benefits to enhance the work-life balance, including:
- Medical Insurance
- Dental Insurance
- Vision Insurance
- Life Insurance
- Short Term & Long-Term Disability
- 401k Retirement Savings Plan with Company Match
- Paid Holidays
- Paid Time Off (PTO)
- Tuition and Professional Development Assistance
- Parking/Travel Reimbursement (metropolitan areas)