IT047 High Performance Computing Services Support

Support•Greenbelt, MD

18h•Onsite

About The Position

This job description is for a System Administrator to administer and operate the supporting infrastructure required for the operations of the Integrated Modeling Computing Center (IMCC), formerly known as the NASA Center for Climate Simulation (NCCS). The IMCC will directly support the Integrated Modeling Virtual Institute (IMVI) to meet the Earth science modeling needs for NASA. The following describes the core duties and responsibilities and technical skills. Ideal candidates should have excellent communication skills, problem solving, and the ability to work efficiently within a highly performing team environment.

Requirements

Advanced, production-level expertise in enterprise Linux distributions (RHEL, Rocky Linux, AlmaLinux, or Ubuntu Server), incorporating expert-level command-line proficiency, kernel tuning, and automated shell scripting (Bash, Python).
Hands-on experience deploying, configuring, and maintaining enterprise applications (e.g., Jira, Confluence, Jupyterhub), monitoring services, and core network services (DNS, NTP).
Robust foundation in core security frameworks, including firewalls, identity management (LDAP/Active Directory), access control lists (ACLs), SSH hardening, and continuous patch management cycles.
Experience operating within modern Agile frameworks (Scrum, Kanban), leveraging iterative workflows, participating in sprint reviews, and utilizing collaborative project boards (Jira, Gitlab) to track milestones.
Experience in deploying, configuring, and maintaining web server technologies (e.g., Apache, Nginx, or similar) to support organizational web services.
Proficiency with virtualization platforms (e.g., OpenStack or Kubernetes) and experience in virtual machine life-cycle management and optimization.
A MS degree and 5+ years’ experience in relevant work areas.
US Citizenship required.
Ability to obtain and maintain a Tier 1 or Tier 2 Investigation through NASA.

Responsibilities

Administer and operate critical infrastructure that supports HPC operations, including, but not limited to, applications such as Jira, Confluence, Jupyterhub, monitoring services, time and DNS hosts.
Provide specialized, tiered technical assistance ranging from software provisioning and workflow optimization to advanced, expert-level troubleshooting for complex research challenges.
Implement security updates, coordinate systematic Operating System patches, and mitigate vulnerabilities across supported infrastructure without compromising system stability.
Perform routine diagnostics, maintenance, and rapid-response resolution for supported services and applications to ensure high availability and performance.
Manage and maintain web infrastructure, including web server administration, content deployment, and ensuring the availability and security of web-based services.
Manage, configure, and maintain virtualized environments, including hypervisor management, virtual machine deployment, and resource optimization.