Senior Linux Systems Administrator — TS/SCI Clearance

Visionist Inc; Annapolis (MD); On-site; USD 143,000 - 242,000; Full time

Benefits offered by this job

Annual merit increases

Paid time off (4 weeks) + holidays

Parental leave (80 hours) and bonus

Medical, dental, vision benefits

Job summary

Visionist, Inc. seeks a System Administrator with active TS/SCI clearance to support our largest PRIME contract.

The role focuses on installing, configuring, and maintaining high-performance computing hardware in an operational datacenter, with Ansible automation and collaboration across distributed teams to meet mission needs. The candidate will perform Linux administration, virtualization, patch management, networking, and comprehensive documentation to sustain scalable, secure systems while

Qualifications

• 9 years of experience in System Administration.
• Strong experience administering and troubleshooting Linux systems.
• Knowledge of networking principles and infrastructure support.
• Experience with VMware and virtualization technologies.
• Experience developing and maintaining clear, detailed technical documentation and operational procedures.
• Strong troubleshooting and problem-solving skills.
• Excellent communication skills and experience working directly with customers.
• Ability to work independently while coordinating effectively with distributed support teams.

Responsibilities

• Install, configure, and maintain high-performance computing hardware in an operational datacenter environment.
• Support installation, configuration, and sustainment of new and legacy hardware infrastructure.
• Utilize Ansible for configuration management and automation to improve system consistency and efficiency.
• Develop and maintain deployment playbooks, technical procedures, configuration documentation, and lessons learned to support repeatable, scalable processes.
• Identify gaps in onsite support coverage and recommend improvements to minimize downtime and streamline user workflows.
• Create and maintain technical diagrams, standard operating procedures, and system documentation to support seamless knowledge transfer.
• Support virtualization initiatives and contribute to IT modernization strategies.
• Perform Linux administration, networking, patch management, user management, and STIG mitigation to maintain secure, reliable systems.
• Collaborate directly with customers and distributed engineering teams to troubleshoot issues, improve processes, and adapt to evolving mission requirements.

Skills

Linux administration

VMware

Ansible

Documentation

Networking

Customer communication

Independent work

Tools

Virtualization technologies

STIG mitigation

Job description

Visionist, Inc. seeks a System Administrator with active TS/SCI clearance to support our largest PRIME contract.

The role focuses on installing, configuring, and maintaining high-performance computing hardware in an operational datacenter, with Ansible automation and collaboration across distributed teams to meet mission needs. The candidate will perform Linux administration, virtualization, patch management, networking, and comprehensive documentation to sustain scalable, secure systems while