Systems Administrator

As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway— you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best.

Responsibilities:
1. Identify, assess, and remediate security vulnerabilities using tools like Tenable.io, Tenable.sc, and Microsoft Defender Vulnerability Management. 2. Implement and maintain security controls including Microsoft Defender for Endpoint, antivirus, and intrusion detection/prevention systems. 3. Monitor system performance and ensure compliance with internal and external security policies and standards (e.g., ISO, NIST). 4. Manage patching and updates across Windows and Linux environments using SCCM, Intune, and WSUS. 5. Provide Tier 2 technical support and resolve issues via a ticketing system (e.g., ServiceNow, Jira). 6. Support remote access (VPN), LAN/WAN infrastructure, and endpoint security configurations. 7. Maintain accurate inventory and asset logs with secure asset lifecycle management practices. 8. Collaborate with Systems Engineers, Infrastructure Leads, and IT Managers on security and infrastructure projects. 9. Document technical procedures, security protocols, and IT policies for audit and compliance purposes. Skills and Qualifications:  Proven experience as a System Administrator or Network Administrator with a strong focus on security operations.  Hands-on experience with Tenable Vulnerability Management, Microsoft Defender for Endpoint, and Microsoft Defender for Identity.  Strong knowledge of vulnerability management, intrusion detection/prevention, and endpoint protection.  Experience with databases, LAN/WAN networks, and patch management tools.  Familiarity with proactive management systems such as Intune, SCCM, and Auto Pilot.  Proficiency in managing Active Directory, Office 365, and hybrid cloud infrastructures (Azure, AWS).  Scripting skills in PowerShell, Python, or similar languages for automation and security tasks.  Excellent problem-solving skills and attention to detail.  Strong communication and documentation abilities.  Professional certifications such as MCSA, Security+, CEH, or Microsoft Certified: Security Operations Analyst Associate are a plus. We are looking for a proactive and passionate individual who is dedicated to staying ahead of emerging security threats and driving a culture of security excellence within our organization

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law .