Mission-Critical Linux Administrator II

CesiumAstro; Westminster (MD); On-site; USD 94,000 - 112,000; Full time

Benefits offered by this job

Stock options

Benefits package including health, 401

Job summary

CesiumAstro in Westminster, MD is seeking a Linux Administrator II to support Element 1 launch operations. You will administer and maintain Linux-based servers and critical infrastructure, ensuring reliability, uptime, security, and rapid issue resolution in a fast-paced aerospace setting.

This role collaborates with software, network, cybersecurity, and IT teams, participates in operational readiness, and contributes to documentation, configuration records, and continuous improvement

Qualifications

• Bachelor’s degree in a technical discipline with 2+ years of Linux systems administration experience.
• Knowledge of Linux systems administration principles and enterprise infrastructure support.
• Understanding of networking fundamentals including TCP/IP, DNS, DHCP, VLANs, and firewalls.
• Experience troubleshooting Linux operating system and server-related issues.
• Familiarity with cybersecurity best practices and system hardening methodologies.
• Ability to support operational environments requiring high availability and rapid issue resolution.
• Strong analytical, organizational, and problem-solving skills.
• Ability to communicate technical information effectively across cross-functional teams.

Responsibilities

• Administer, configure, monitor, and maintain Linux-based servers and operational systems supporting Element 1 launch operations.
• Perform provisioning, patching, upgrades, hardening, and performance tuning across dev, test, and production environments.
• Support operational readiness of mission-critical infrastructure with focus on reliability, uptime, and security.
• Manage user accounts, permissions, authentication methods, and system access controls in line with cybersecurity requirements.
• Troubleshoot Linux OS issues, performance concerns, and infrastructure incidents.

Skills

Linux systems administration

Networking fundamentals

Cybersecurity best practices

Troubleshooting

Cross-functional communication

High availability operations

Problem solving

Education

Bachelor’s degree in Computer Science/IT/IS/Engineering/Cybersecurity

Job description

CesiumAstro in Westminster, MD is seeking a Linux Administrator II to support Element 1 launch operations. You will administer and maintain Linux-based servers and critical infrastructure, ensuring reliability, uptime, security, and rapid issue resolution in a fast-paced aerospace setting.

This role collaborates with software, network, cybersecurity, and IT teams, participates in operational readiness, and contributes to documentation, configuration records, and continuous improvement