Sr. Systems Administrator
TLDR
Provides IT support and cybersecurity leadership within a Windows environment for defense programs, ensuring secure operations and reliable end-user support.
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.
Duties & Responsibilities
- 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 escalate 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.
Required Qualifications
- Bachelor’s Degree in 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, OneDrive interconnectivity. Hybrid and GCC High experience a plus.
- Proficiency in Linux GUI/CLI (Ubuntu Desktop/Server 16.04-20.04).
- Proficiency in LAN networking (DNS, DHCP, VLANs, static/BGP routing, Ethernet, enterprise Wi-Fi, PoE) Enterprise backup 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 support.
- Experience with ticket system administration experience (triage, prioritization, escalation, log troubleshooting updates).
- Experience with end-user hardware and software set-up and support to include, but not limited to, Audio Visual equipment, PC, VoIP.
- Demonstrated critical thinking when troubleshooting.
- Methodical and accurate when following IT documentation.
- Currently holds an active U.S. national security clearance or be able to receive and maintain one.
Preferred Qualifications (Not Required)
- Security+, Network+ certifications preferred.
- An active Secret National Security Clearance.
- Active-duty military experience.
Physical Requirements
- Prolonged periods sitting at a desk and working on a computer.
- Comfortable working on-site in a professional office setting.
- Must be able to lift up to 15 pounds at times.
- Ability to travel to support security/organizational needs.
Clearance Requirements
Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment.
Pay Scales & Benefits
The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors.
Benefits include…
Paid Time Off
Paid Company Holidays
Medical, Dental & Vision Insurance
Optional HSA and FSA
Base and Voluntary Life Insurance
Short Term & Long-Term Disability Insurance
401k Matching
Employee Assistance Program
Benefits
Equity Compensation
401k Matching
Health Insurance
Short Term & Long-Term Disability Insurance
employee assistance program
Paid Time Off
Paid Company Holidays
Systems Innovation Engineering, part of Accelint, develops advanced technologies focused on enhancing national security and operational readiness. We specialize in creating integrated systems for readiness and logistics, autonomous platforms, and sensor technologies, delivering reliable performance across various environments. Our solutions empower organizations to improve situational awareness and make informed decisions quickly.