Compute Linux System Administrator - Stennis, MS - Top Secret Clearance Requir

HPC Linux Systems Engineer needed for a full‑time opportunity with SOC's client to work onsite in Stennis, MS
.

Active Top Secret clearance is required (TS/SCI preferred).

Work Schedule: On‑site 5 days/week with required on‑call and weekend support as part of a 24x7x365 environment.

• Monitor and maintain system health across HPC environments, including compute, network, and storage components.
• Review, respond to, resolve, and close client support tickets while meeting SLA requirements.
• Create, monitor, and close all support cases; maintain accurate documentation and reporting.
• Produce and maintain availability and SLA reports for customer systems.
• Plan, schedule, and execute monthly patching activities and semi‑annual kernel upgrades.
• Maintain and enforce system security posture in accordance with customer and compliance requirements.
• Assist customers with application installations and system configuration support.
• Troubleshoot, repair, and replace hardware components; track and document hardware repairs and part replacements.
• Open, track, and close vendor hardware cases and manage return logistics for replaced components.
• Participate in and maintain the on‑call rotation to support 24x7x365 contracts.
• Assist with new hardware and system installations, including rack, stack, and system bring‑up.
• Provide technical leadership and act as a trusted advisor to customers and internal teams.
• Contribute to solution development, documentation, and continuous improvement initiatives.

• Active Top Secret clearance (TS/SCI preferred).
• CompTIA Security+ certification (required).
• CompTIA Linux+ certification (required).
• 5+ years of Linux System Administration experience in enterprise or HPC environments.
• Bachelor's degree in Computer Science or related technical discipline (or 8+ years of relevant professional experience in lieu of degree).
• Hands‑on experience supporting High Performance Computing (HPC) systems.
• Experience working in onsite, mission‑critical environments with on‑call responsibilities.
• Ability to work independently while collaborating with cross‑functional technical teams.
• Strong written and verbal communication skills, including customer‑facing interactions.

• TS/SCI clearance.
• Experience supporting government or classified environments.
• Experience contributing to technical proposals or solution design efforts.
• Vendor or industry certifications beyond Security+ and Linux+.
• Prior experience mentoring junior engineers or leading technical initiatives; deep technical expertise across Linux, HPC architectures, networking, and storage technologies.
• Ability to design and implement solutions that enhance availability, performance, security, and maintainability.
• Proven troubleshooting skills with the ability to diagnose complex issues to root cause.
• Strong understanding of architectural dependencies within enterprise and HPC environments.
• Experience contributing to the development and application of new tools and methodologies.
• Ability to clearly communicate technical concepts, risks, and impacts to senior technical and non‑technical stakeholders.
• Demonstrated ability to operate in multi‑technology environments and adapt consulting approaches to customer needs.
• Experience supporting or contributing to technical demonstrations and smaller proposal efforts.

The following requirements must be met to be eligible for this position:

• Successful completion of a background investigation.
• Drug urinalysis.

SOC, a Day & Zimmermann company, is an Equal Opportunity Employer (EOE AA M/F/Vet/Disability).

Note:

Any pay ranges displayed are estimates provided by job boards. Actual compensation is based on experience, technical expertise, and qualifications.

#INDSOC

Estimated Min Rate: $98000.00
Estimated Max Rate: $140000.00