Systems Administrator III (Domain & Server) (JSF)

American Systems; California; Presencial; USD 82.000 - 131.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Healthcare benefits

Education & training assistance

Paid leave

Descripción de la vacante

American Systems is hiring a Systems Administrator III (Domain & Server) to oversee enterprise IT infrastructure, including Windows and Linux servers, Active Directory, DNS, DHCP, and virtualization platforms. The role emphasizes security, compliance, backup/recovery, and cross-team collaboration in a fast-paced environment.

Applicants must be a U.S. citizen with an active Secret clearance or eligibility for Top Secret/SCI, plus 5+ years of experience and IAT Level II certification.

Formación

• U.S. Citizenship is required.
• Active Secret clearance with ability to obtain Top Secret with SCI eligibility or Top Secret with SCI eligibility.
• Minimum 5 years in systems administration (Windows and Linux).
• Current 8570/8140 IAT Level II Certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP).
• Strong experience in AD/DNS/DHCP and Group Policy in large environments.

Responsabilidades

• Administer and maintain Windows and Linux servers for high availability.
• Deploy, configure, and patch operating systems and applications.
• Support virtualization environments (VMware, Hyper-V).
• Implement security measures and system hardening; address vulnerabilities.
• Manage storage (SAN/NAS) and ensure backups/recovery.
• Assist upgrades, migrations, and disaster recovery planning.
• Document system configurations and procedures; maintain runbooks.
• Troubleshoot complex issues and respond to incidents promptly.
• Collaborate with network, security, and application teams.
• Contribute to design and implementation of new systems.

Conocimientos

Windows & Linux administration

Active Directory management

Virtualization

Security & compliance

Automation scripting

Documentation & teamwork

Herramientas

VMware

Hyper-V

Cloud platforms (AWS/Azure/GCP)

Storage management (SAN/NAS)

IAT Level II certification (CCNA Security, CySA+, etc)

Descripción del empleo

Overview

Now Hiring at AMERICAN SYSTEMS

Join us to be part of a dynamic, collaborative environment dedicated to innovation and customer success.

Responsibilities

An Average Day:

As the Systems Administrator III (Domain & Server) you will be responsible for the comprehensive administration, maintenance, and optimization of enterprise IT infrastructure, including Microsoft Server environments and domain services. This role involves managing critical systems such as Active Directory, Exchange Server, DNS, and DHCP services, while also overseeing both Linux and Windows server environments to ensure optimal performance, security, and availability. You will also be responsible for system monitoring, troubleshooting complex technical issues, implementing security protocols, managing user accounts and permissions, and collaborating with cross-functional teams to support organizational technology needs. Additionally, in this positin you will:

• Administer and maintain Windows and Linux servers, ensuring high availability and performance.
• Manage the deployment, configuration, and maintenance of operating systems, applications, and patch management processes.
• Support virtualization environments, including VMware and Hyper-V, to optimize resource utilization.
• Implement security measures, including access control, system hardening, and vulnerability remediation.
• Manage storage solutions (SAN, NAS) and ensure effective backup and recovery operations.
• Assist in system upgrades, migrations, and disaster recovery planning and execution.
• Develop and update documentation for system configurations, procedures, and troubleshooting.
• Troubleshoot complex system issues and respond to incidents to ensure timely resolution.
• Collaborate with cross-functional teams, including network, security, and application teams, to enhance overall infrastructure.
• Contribute technical expertise to the design and implementation of new systems and infrastructure enhancements.

Qualifications

• As a requirement of this position, all candidates must be a U.S. Citizen. In accordance with 8 U.S.C. 1324b(a)(2)(C).
• Must havean active Secretclearancewith the ability to obtain aTop Secret with SCI eligibility or have an active Top Secret with SCI eligibility; Will be subject to a federal background investigation.
• Minimum of 5 years of experience in systems administration, with hands-on experience in both Windows and Linux environments.
• Must hold a current 8570/8140 IAT Level II Certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP)
• Advanced technical expertise in server administration, domain management, and infrastructure planning
• Proficiency in managing Active Directory, DNS, DHCP, and Group Policy in large-scale environments.
• Strong experience with virtualization technologies such as VMware, Hyper-V, or similar platforms.
• Skilled in storage management, including SAN and NAS solutions, and backup/recovery operations.
• Familiarity with cloud platforms (AWS, Azure, or GCP) and hybrid cloud environments.
• Experience with automation tools like PowerShell, Ansible, or Terraform for system configuration and management.
• Knowledge of security frameworks, including NIST, FISMA, or DISA STIG compliance.
• Must be able to work independently while managing multiple priorities in a fast-paced enterprise environment.
• Excellent troubleshooting skills with a focus on diagnosing and resolving complex system issues.
• Strong communication skills and the ability to work effectively in a team-oriented environment.

Pay Transparency Statement

AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $82,100.00/Yr. - USD $131,360/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.

EEO Statement

EEO Race/Sex/Disability Status/Veteran Status