IT Systems Administrator - Linux · Astranis

Fri, 24 Apr 2026 15:19:05 GMT
IT

Astranis · San Francisco · $120,000-$150,000 USD · onsite

We're seeking a Systems Administrator with deep Linux expertise to help maintain and evolve our infrastructure. In this role, you'll be responsible for ensuring the reliability, performance, and security of core systems that support day-to-day operations.

You'll work closely with technical teams to implement improvements, streamline operations, and keep our environment resilient.

Your responsibilities will include: Administering and maintaining Linux servers and services, focusing on stability, scalability, and security Performing patching, upgrades, and configuration management to keep systems current and compliant Managing authentication, and access controls across Linux and integrated platforms Supporting and troubleshooting core infrastructure services (DNS, DHCP, VPN, SSH, NFS, etc.) Developing and maintaining automation workflows to reduce manual work and improve consistency Monitoring system performance, responding to incidents, and implementing preventative measures Collaborating with different departments to understand and meet their technical requirements and support needs Testing and evaluating new technology to determine its potential benefits for the company Documenting procedures, configurations, and troubleshooting steps for team use

Requirements: 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, VPNs) Proficiency with virtualization platforms (VMware, KVM, or similar) Experience with authentication and access management in Linux environments (e.g. LDAP, Kerberos, SSSD, PAM) Strong troubleshooting skills and ability to manage multiple priorities effectively Clear, collaborative communication skills for cross-team work

Bonus: Experience with automation and configuration management tools (e.g., Ansible) Familiarity with identity management platforms such as FreeIPA or Active Directory integration Exposure to cloud environments (AWS, GCP, Azure) Knowledge of containerization and orchestration (Docker, Kubernetes) Experience with monitoring and logging tools (Grafana, Prometheus, ELK, Nagios)