Senior Linux System Administrator - Support Engineer

• Deploy, configure, maintain, and troubleshoot Linux servers (Red Hat, CentOS, Ubuntu, or others) across physical, virtual, and cloud environments
• Support, maintain, and optimize HPC systems, including installation, servicing, and advanced technical troubleshooting of hardware/software and parallel file systems
• Monitor system performance, availability, and security using industry-standard tools and practices
• Plan and execute upgrades, patches, enhancements, and migrations to ensure systems are current, secure, and optimized
• Automate system administration tasks using scripting languages and configuration management tools
• Implement and maintain backup/recovery strategies, disaster recovery plans, and system documentation
• Collaborate with development, network, and security teams to support application deployments and troubleshoot issues
• Provide technical consulting, mentoring, and guidance to junior team members
• Ensure compliance with strict security protocols in sensitive environments
• Participate in on-call rotation and respond to system incidents and outages
• Assist with technical proposals, solution design, and enterprise-level architecture for new projects and customer engagements

• Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent work experience
• At least 5 years of hands-on experience managing Linux systems in production environments, including HPC systems
• Expertise in Linux/Unix operating systems, parallel file systems (Lustre, GPFS), and networking technologies
• Proficiency in scripting/programming languages (Bash, Python, Perl, C++)
• Experience with automation/configuration management tools (Ansible, Puppet, Chef, Terraform)
• Strong understanding of networking concepts (TCP/IP, DNS, DHCP, firewalls, VPNs)
• Familiarity with monitoring/logging tools (Nagios, Grafana, ELK Stack)
• Experience with containerization technologies (Docker, Kubernetes)
• Excellent problem-solving, analytical, and communication skills
• Demonstrated ability to work independently in multi-technology environments and collaborate across teams
• TSPV Government Security clearance (mandatory)

Relevant certifications (RHCE, LFCS, AWS Certified SysOps Administrator, etc.)

• Competitive salary and performance-based bonuses
• Comprehensive health, dental, and vision insurance
• Retirement plan options
• Paid time off and holidays
• Professional development opportunities
• Flexible work arrangements