Senior Systems Administrator II - Generalist

SAIC•Newington, VA

5h•Onsite

About The Position

SAIC is seeking a highly motivated and skilled Senior Systems Administrator II – Generalist to join their MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. This individual will provide operational management, support, and maintenance of mission-critical infrastructure, including Windows Servers, Red Hat Enterprise Linux (RHEL), and Nutanix hyper-converged platform solutions. The successful candidate will serve as a key member of a dynamic team responsible for ensuring the performance, reliability, and security of a large-scale enterprise IT environment. The Senior Systems Administrator II – Generalist will be responsible for server administration, patch management, system troubleshooting, and the implementation of new capabilities to meet operational and mission requirements. SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect the world. Their robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. They integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

Requirements

Highly motivated and skilled Senior Systems Administrator II – Generalist
Experience with Windows Servers
Experience with Red Hat Enterprise Linux (RHEL)
Experience with Nutanix hyper-converged platform solutions
Proficiency in server administration
Proficiency in patch management
Proficiency in system troubleshooting
Ability to implement new capabilities to meet operational and mission requirements
Ability to write and maintain scripting solutions (e.g., PowerShell, Bash, or Python)
Experience implementing and administering Active Directory (AD), including group policies, user administration, and cross-platform integration with RHEL
Knowledge of high availability (HA) and disaster recovery capabilities
Familiarity with monitoring tools such as Nagios, Splunk, SolarWinds, and Grafana

Responsibilities

Perform day-to-day system administration tasks to ensure the availability, security, and performance of critical enterprise Windows Server and RHEL systems.
Install, configure, and administer Nutanix hyper-converged infrastructure, including cluster creation, migrations, and upgrades.
Monitor system performance and maintain enterprise infrastructure for compliance with security and reliability requirements.
Manage server patching across Windows and Linux servers using tools like WSUS, Microsoft SCCM, and Ansible.
Write and maintain scripting solutions (e.g., PowerShell, Bash, or Python) to automate repetitive administrative tasks and improve operational efficiency.
Implement and administer Active Directory (AD), including group policies, user administration, and cross-platform integration with RHEL.
Ensure high availability (HA) and disaster recovery capabilities across the environment, including clustering and redundancy mechanisms in Nutanix and server environments.
Leverage monitoring tools such as Nagios, Splunk, SolarWinds, and Grafana to monitor server health and resolve issues proactively.
Collaborate with cross-functional teams to ensure proper integration of Windows, Linux, and Nutanix environments into overall enterprise infrastructure.
Analyze and troubleshoot system performance or configuration issues and implement long-term solutions to systemic challenges.
Develop and maintain detailed technical documentation, including system diagrams, SOPs, and recovery procedures.
Provide technical support for application teams leveraging Windows Servers, RHEL systems, and Nutanix, ensuring seamless operations.
Assist with evaluating and implementing new infrastructure technologies, tools, and processes to drive continuous improvement.