New

Sr Linux Administrator (Contract)

Sierra Space
United States, Colorado, Louisville
Dec 20, 2025
Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond. Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space. We are mission-driven, and together, we are an extraordinary team. About the RoleThe Linux Administrator will be responsible for the installation, configuration, maintenance, and troubleshooting of Linux servers and systems. This role requires a deep understanding of Linux operating systems, scripting, and network protocols to ensure the stability, integrity, and efficient operation of the information systems that support core organizational functions. About You Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower - to join us in this critical mission. We're looking for team members who align with our values, mission and goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement. Key Responsibilities: Install, configure, and maintain Linux operating systems and servers and related hardware. Monitor system performance and ensure reliability and availability. Perform regular system updates, patches, and security configurations. Manage user accounts, permissions, and access controls. Automate routine tasks using shell scripts and other scripting languages. Troubleshoot and resolve hardware, software, and network issues. Implement and maintain backup and recovery strategies. Ensure compliance with security policies and procedures. Collaborate with other IT team members to support infrastructure projects. Work closely with the Application team and Development team to provide any required hardware support Build prototype systems for demo and testing Provide platform infrastructure support Provide general business application support Maintain detailed inventory of Business Area automation Maintain documentation of network server configurations, application licensing agreements, and other third party software installed Document system configurations, procedures, and changes. Perform on call after hours support as part of the rotation Qualifications: Bachelor's degree in Computer Science, Information Technology, or a related field. 10 plus years proven experience as a Linux Administrator or similar role. In-depth knowledge of Linux operating systems (e.g., Red Hat, CentOS, Ubuntu). Proficiency in scripting languages (e.g., Bash, Python). Familiarity with network protocols and services (e.g., TCP/IP, DNS, DHCP). Experience with virtualization technologies (e.g., VMware). Strong problem-solving skills and attention to detail. Excellent communication and teamwork abilities. Relevant certifications (e.g., RHCSA, RHCE) are a plus. Preferred Skills: Experience with cloud platforms, AWS and Azure. Knowledge of configuration management tool, Puppet. Experience with setting up build-machines and software development support Experience with Red Hat Satellite Server. Experience with Red Hat IdM. Experience with Artifactory and repos such as Python and Conda Understanding of containerization technologies (e.g., Docker, Kubernetes, Singularity). Familiarity with database management (e.g., MySQL, PostgreSQL). Experience with infrastructure as code (IaC) tools like Terraform, Ansible, or CloudFormation. Experience with version control systems (e.g., Git, SVN). Familiarity with database management systems (SQL, MySQL, PostgreSQL). Knowledge of storage technologies (SAN, NAS, DAS). Familiarity with cloud storage solutions like AWS S3, Azure Blob Storage. Experience working in aerospace industry and Mission Control Elevate Your Career At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations. Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration. Application Deadline: This role will remain posted until a qualified pool of candidates is identified. Sierra Space Corporationis an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment withSierra Spaceor at any stage of the recruitment process, pleasecontact us.