Systems Administrator

Marathon TS; Charleston (SC); In loco; USD 90.000 - 120.000; Tempo pieno

Descrizione del lavoro

Marathon TS in Charleston, SC seeks an experienced Systems Administrator to design, implement, secure, and maintain enterprise infrastructure including OT/ICS environments. You will work across Windows servers, virtualization platforms, and network services to keep systems resilient.

The role requires strong troubleshooting, documentation, and collaboration with technical teams to support deployments, upgrades, testing, and incident response while aligning with cybersecurity standards.

Competenze

• Minimum: 5+ years in systems administration or engineering in enterprise or OT/ICS environments.
• Hands-on with virtualization, Windows Server, networking, backups, and recovery.
• Knowledge of cybersecurity, patching, STIGs, vulnerability management and compliance.

Mansioni

• Design, configure, maintain, and troubleshoot Windows and virtualized computing environments.
• Support VMware vSphere/ESXi or Hyper-V, Windows Server, Active Directory, and network services.
• Manage backups, storage, recovery, and disaster recovery procedures.
• Implement security configurations, patching, vulnerability remediation, and compliance requirements.
• Support network infrastructure, including TCP/IP, VLANs, firewalls, and segmentation.
• Develop and maintain technical documentation, system diagrams, tests, and procedures.
• Coordinate with teams to support deployments, upgrades, testing, and commissioning.
• Provide technical guidance and resolve complex infrastructure issues.

Conoscenze

Virtualization

Windows Server

Networking

Backups & DR

Security hardening

Vulnerability management

Documentation

Technical leadership

PowerShell

Formazione

Bachelor's degree

Associate degree

High school diploma

Strumenti

VMware vSphere/ESXi

Microsoft Hyper-V

Active Directory

Descrizione del lavoro

Marathon TS is seeking an experienced Systems Administrator to support the design, implementation, security, and maintenance of enterprise infrastructure and industrial control system (OT/ICS) environments.

Responsibilities:

• Design, configure, maintain, and troubleshoot Windows and virtualized computing environments.
• Support VMware vSphere/ESXi or Microsoft Hyper-V, Windows Server, Active Directory, and network services.
• Manage system backups, storage, recovery, and disaster recovery procedures.
• Implement security configurations, system patching, vulnerability remediation, and compliance requirements.
• Support network infrastructure, including TCP/IP, VLANs, firewalls, and network segmentation.
• Develop and maintain technical documentation, system diagrams, test procedures, and operational procedures.
• Coordinate with technical teams and stakeholders to support system deployments, upgrades, testing, and commissioning.
• Provide technical guidance and help resolve complex infrastructure issues.

Requirements:

• Bachelor's degree with 5+ years of relevant experience, associate's degree with 8+ years, or high school diploma/GED with 10+ years.
• Experience in systems administration or systems engineering, preferably supporting enterprise or OT/ICS environments.
• Hands-on experience with virtualization, Windows Server, networking, backups, and system recovery.
• Knowledge of cybersecurity compliance, security hardening, STIGs, vulnerability management, and system patching.
• Familiarity with industrial control system networking and security concepts.
• Strong troubleshooting, documentation, communication, and technical leadership skills.
• Active CompTIA Security+ certification or an approved higher-level certification, such as CASP+ or CISSP.
• Ability to support on-site activities and flexible schedules as required.

Preferred Qualifications:

• Experience with OT/ICS cybersecurity, SCADA, ACAS/Tenable, RMF, or NIST security frameworks.
• Familiarity with enterprise backup and storage platforms, endpoint security tools, centralized logging, PowerShell, and virtual desktop infrastructure.
• Experience supporting secure or isolated computing environments.