IT Systems Administrator - Linux at Astranis

**ROLE_OVERVIEW** Astranis is seeking a Systems Administrator with deep Linux expertise to maintain and evolve its critical infrastructure. This role is responsible for ensuring the reliability, performance, and security of core systems supporting daily operations. The administrator will collaborate with technical teams to implement improvements, streamline processes, and enhance the overall resilience of the environment. **KEY_RESPONSIBILITIES** * Administer and maintain Linux servers and services, focusing on stability, scalability, and security. * Perform patching, upgrades, and configuration management to ensure systems are current and compliant. * Manage authentication and access controls across Linux and integrated platforms. * Support and troubleshoot core infrastructure services like DNS, DHCP, VPN, and SSH. * Develop and maintain automation workflows to reduce manual effort and improve consistency. * Monitor system performance, respond to incidents, and implement preventative measures. **REQUIREMENTS_SNAPSHOT** * 3–5+ years of experience as a Systems Administrator with a strong Linux focus. * Hands-on expertise with major Linux distributions (e.g., RHEL, CentOS, Ubuntu) in server environments. * Solid foundation in networking concepts and services (TCP/IP, DNS, DHCP, VPN