Senior Linux Systems Administrator
Vast is looking for a Senior Linux Systems Administrator, reporting to the Manager of IT System Administrators, to play a key role in designing, deploying, and maintaining Vast's Linux workstations and servers. You will be responsible for configuration management using Puppet, development of Ubuntu workstation images, supporting hardware and software developers, as well as resolving complex technical issues escalated from Tier 2 support. Your contributions will ensure scalable, secure, and efficient workstation & infrastructure operations.
This will be a full-time, exempt position located in our Long Beach location.
Responsibilities:
Develop, test, and maintain Puppet manifests and modules for system configuration and compliance
Create and maintain standardized Ubuntu imaging processes
Troubleshoot and resolve advanced system and application issues (Tier 2 & 3)
Collaborate with cross-functional teams to support ongoing workstation improvements and patching
Assist with automation of infrastructure and deployment tasks using Terraform or similar tools
Contribute to identity and access management systems, including LDAP / Active Directory integration
Assist with support for hardware and software developers
Document best practices, system configurations, and procedures
Minimum Qualifications:
5+ years of professional experience in Linux system administration (Ubuntu or Debian-based preferred), performance tuning, and automation.
3+ years of hands-on experience with Puppet in production environments
Proficient in scripting languages such as Bash or Python
2 years Experience with Git
Preferred Skills & Experience:
Familiarity with infrastructure-as-code (Terraform, Ansible, etc.)
Exposure to LDAP or Active Directory integration for authentication and authorization
Experience with physical server hardware, including racking, cabling, and maintaining rack-mounted servers
Experience in cloud environments (AWS, Azure, or GCP)
Experience with monitoring, logging, and metrics collection tools (e.g., Prometheus, Grafana, ELK stack)
2 years experience with K8s or docker
Understanding of security compliance frameworks (e.g., NIST, FIPS, CIS)
Pay Range: California
$123,000—$174,600 USD