Sr. Systems Administrator

Lyntris is a defense technology company that connects sensing to action across the connected battlespace. Lyntris brings together the talents of Accelint and Vitesse teams under one mission, with each contributing deep expertise within their domain. Combining differentiated hardware, software and mission expertise, Lyntris helps customers sense threats, make sense of complex conditions and act with greater speed, precision and confidence in contested environments.

Lyntris supports U.S. and allied defense organizations across every branch — including Navy, Army, Air Force, Space Force and allied partners — spanning strategic, operational and tactical missions and every domain:
Space, Air, Land, Sea and Cyber. With more than 200 active defense programs, Lyntris works at every level of the mission, from national command authority to the tactical edge.

Solutions are designed by operators who understand the mission, engineered for the conditions that degrade or defeat standard systems, and built on an open, modular architecture that integrates into existing programs without requiring them to start over. Lyntris moves faster than the traditional defense cycle — with integrated design, build and test capabilities in-house — and delivers systems that sustain and endure long after initial fielding.

The Sr. Systems Administrator is a full time position that provides high quality IT customer service, technical support, and troubleshooting within a Microsoft Windows network environment, ensuring timely resolution of hardware, software, and connectivity issues. This position will maintain organized workflows, manage multiple priorities effectively, and will work independently with minimal supervision. Communicates clearly and professionally with users and team members while supporting daily IT operations and system functionality.

Demonstrates strong problem-solving abilities, adaptability, and a continued passion for IT, security, and user support services.

• Provide high quality end-user support for Windows devices.
• Install, remove, update, support, and troubleshoot desktop and network hardware, operating systems, and software issues.
• Serves as the ISSM and the primary cybersecurity leader responsible for maintaining the operational security posture and authorization of classified and unclassified information systems.
• Administer Microsoft Office 365 and Microsoft Azure accounts and services.
• Perform basic network administration tasks such as management of servers, routers, WiFi hardware, and firewalls.
• Monitor security and event logs, investigate events, and elevate to the security team as needed.
• Manage backup and disaster recovery operations.
• Create and maintain procedures and documentation for internal use.
• Support operating system and hardware upgrades, network expansion, and deployment of end-user applications.
• Manage hardware and software inventory.
• Provide Information Technology Help Desk functions.
• Other duties as assigned.

• Bachelor’s Degreein Computer Science, Cyber Security, Information Technology, or a related discipline or equivalent experience.
• 6+ years’ experience working in an IT role successfully supporting a combination of software, hardware,network and security responsibilities.
• May require travel to provide IT support and troubleshooting for customer events, office events, and internal meetings, including conference room technology, audio/video systems, presentation equipment, and connectivity issues.
• Excellent customer service skills and provide high quality end-user support for Windows devices.
• Expert level experience with Office 365, especially with Outlook and Microsoft Teams, SharePoint, One Drive interconnectivity. Hybrid and GCC High experience a plus.
• Proficiency in Linux GUI/CLI (Ubuntu Desktop/Server ).
• Proficiency inLAN networking (DNS, DHCP, VLANs,static/BGP routing,Ethernet, enterprise Wi-Fi,PoE) Enterprisebackup systems.
• Experience in Diagnostic Tools and Techniques.
• Experience with managing end-user and IT Administrator documentation.
• Expert in troubleshooting hardware issues that may involve repair, replacement, or third-party warranties and…