IT Systems Administrator - Linux

Astranis builds advanced satellites for high orbits, expanding humanity’s reach into the solar system. Today, Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe— large enterprises, sovereign governments, and the US military. With five satellites on orbit and many more set to launch soon, the company is servicing a backlog of more than $1 billion of commercial contracts.

Astranis is the preferred satellite communications partner for buyers with stringent requirements for uptime, data security, network visibility, and customization.Astranis has raised over $750 million from some of the world’s best investors, from Andreessen Horowitz to Blackrock and Fidelity, and employs a team of 450 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA.

Systems Administrator - Linux

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.

Role:

• Administer and maintain Linux servers and services, focusing on stability, scalability, and security
• Perform patching, upgrades, and configuration management to keep systems current and compliant
• Manage authentication, and access controls across Linux and integrated platforms
• Support and troubleshoot core infrastructure services (DNS, DHCP, VPN, SSH, NFS, etc.)
• Develop and maintain automation workflows to reduce manual work and improve consistency
• Monitor system performance, respond to incidents, and implement preventative measures
• Collaborate with different departments to understand and meet their technical requirements and support needs
• Test and evaluate new technology to determine its potential benefits for the company
• Document 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)