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.

Core Duties & Responsibilities:

• Supporting Infrastructure Administration: 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.
• User Support: Provide specialized, tiered technical assistance ranging from software provisioning and workflow optimization to advanced, expert-level troubleshooting for complex research challenges.
• Security and Compliance: Implement security updates, coordinate systematic Operating System patches, and mitigate vulnerabilities across supported infrastructure without compromising system stability.
• System Maintenance: Perform routine diagnostics, maintenance, and rapid-response resolution for supported services and applications to ensure high availability and performance.
• Web Support: Manage and maintain web infrastructure, including web server administration, content deployment, and ensuring the availability and security of web-based services.
• Virtualization Support: Manage, configure, and maintain virtualized environments, including hypervisor management, virtual machine deployment, and resource optimization.

Required Technical Skills and Qualifications:

• Expert Linux System Administration: 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).
• Infrastructure Services Management: Hands-on experience deploying, configuring, and maintaining enterprise applications (e.g., Jira, Confluence, Jupyterhub), monitoring services, and core network services (DNS, NTP).
• Systems Security Alignment: Robust foundation in core security frameworks, including firewalls, identity management (LDAP/Active Directory), access control lists (ACLs), SSH hardening, and continuous patch management cycles.
• Agile Methodologies: 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.
• Web Server Management: Experience in deploying, configuring, and maintaining web server technologies (e.g., Apache, Nginx, or similar) to support organizational web services.
• Virtualization Expertise: 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.

Team ADNET brings over 30+ years of experience to information systems and professional services for the federal government. With a history of expertise in software development, computer network design, IT security, mission operations support, and educational outreach, Team ADNET is deeply embedded in the Space and Earth Science at NASA’s Goddard Space Flight Center (GSFC) in Greenbelt, MD.

ADNET Systems, Inc. is working with Goddard Space Flight Center to fulfill NASA’s vision for space exploration, and working with the Science and Exploration Directorate to fulfill its many missions.

ADNET Systems, Inc. is an employee-centric company, committed to providing premier benefits that support our employees and their families. With affordable medical and dental plans coupled with leading disability and life insurance options, ADNET offers our employees the benefits most sought after by today’s professional candidate. Furthermore, our benefits package features the extras that distinguish us from other small businesses, ensuring our high employee retention that our customers appreciate.

Some features of our compensation plans and environment perks include:

• Annual Leave/Sick Leave
• Military and Family Emergency Leave
• Paid Holidays
• Performance Bonuses
• Medical, Dental and Vision Plans
• Direct Deposit Payroll
• 401K Plan with Company Matching
• Tuition Reimbursement
• Swag bags