[Remote] IT Systems Administrator DC Metro area

Note: The job is a remote job and is open to candidates in USA. General Dynamics Information Technology is a global technology and professional services company that delivers consulting and mission services to U.S. government agencies. They are seeking an IT Systems Administrator to manage and optimize their on-premises and cloud-based infrastructure, with a focus on arenaflex technologies and hands-on experience in Windows Server and Azure services. Responsibilities • Administer and maintain Windows Server environments, including patching, performance tuning, and security hardening. • Manage and support arenaflex 365 services (Exchange Online, SharePoint Online, Teams, Intune, OneDrive). • Oversee Active Directory, Group Policy, DNS, DHCP, and related identity management functions. • Deploy and manage virtualized environments using Hyper-V and/or Azure Virtual Machines. • Assist with cloud resource configuration and governance within arenaflex Azure. • Support end-user systems and mobile device management through Intune or similar tools. • Perform routine system monitoring, backup validation, and disaster recovery testing. • Collaborate with cross-functional IT teams on security, networking, and application initiatives. • Document configurations, procedures, and troubleshooting steps. • Provide Tier 3 escalation support for complex technical issues. Skills • 3–5 years of experience in systems administration or IT infrastructure roles. • Strong knowledge of Windows Server (2016/2019/2022) and Active Directory. • Experience administering arenaflex 365 and Azure environments. • Familiarity with PowerShell scripting for automation and management tasks. • Understanding of networking fundamentals (TCP/IP, VPN, DNS, firewalls). • Demonstrated ability to manage patching, monitoring, and security compliance. • Excellent troubleshooting and communication skills. • arenaflex certifications such as MCSA, MS-102, AZ-104, or equivalent experience. • Experience with hybrid identity (Azure AD Connect, Entra ID). • Familiarity with backup and recovery tools (Veeam, Azure Backup). • Exposure to ITIL practices or structured service management. Benefits • A variety of medical plan options, some with Health Savings Accounts • Dental plan options • A vision plan • A 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match • Full flex work weeks where possible • A variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave • Short and long-term disability benefits • Life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance Company Overview • General Dynamics Information Technology is an IT consulting company that specializes in cyber security, AI, and quantum computing. It is a sub-organization of General Dynamics. It was founded in 1999, and is headquartered in Falls Church, Virginia, USA, with a workforce of 10001+ employees. Its website is Company H1B Sponsorship • General Dynamics Information Technology has a track record of offering H1B sponsorships, with 27 in 2025, 27 in 2024, 37 in 2023, 19 in 2022, 18 in 2021, 13 in 2020. Please note that this does not guarantee sponsorship for this specific role. Apply tot his job Apply tot his job Apply tot his job