Systems Engineer

Aqua IT; Saint Louis (VA); On-site; USD 130,000 - 170,000; Full time

Job summary

Aqua IT is seeking an experienced System Engineer with Linux administration to support cloud and on-premise systems for a mission operations team. The role focuses on operating and sustaining a geospatial solution for DoW end users, with emphasis on installation, configuration, and ongoing maintenance of critical systems.

The ideal candidate will have BS plus 8+ years or a Masters with 6+ years, active TS/SCI clearance, and DoD 8570 Security+ level certification.

Qualifications

• BS degree and 8+ years of experience or a Masters with 6+ years of experience.
• Active TS/SCI clearance with ability to obtain a Polygraph post hire.
• DoD 8570 Certification (Security+ or higher).
• Strong written and oral communication skills.
• Adaptable to new technologies and fast learner.
• Strong organizational and attention to detail.
• Experience with Linux, RHEL, and HPC environments.

Responsibilities

• Lead system changes and improvements.
• Troubleshoot with government and contractor POCs.
• Recommend configuration changes to improve performance.
• Maintain security compliance with government and contractor POCs.
• Author and update operation and security documentation, including SOPs.
• Perform other tasks as assigned.

Skills

Linux administration

RHEL environments

HPC clusters (Slurm & MPI)

TS/SCI clearance

Security best practices

Scripting

Technical communication

Education

BS degree in a relevant field

Masters degree in a related field

Tools

Jira

Confluence

STIG/IAVA tooling

Job description

Overview

Aqua IT has an opening for an experienced System Engineer with Linux system administration experience to support cloud and on-premise systems with a mission operations team. The team is involved in operation and sustainment of a mission-critical geospatial solution supporting DoW end users. A successful candidate will have experience with installation, configuration, administration, support and maintenance of mission critical cloud and on-premise systems.

Responsibilities

• Primary responsibilities will involve taking a leadership role in system changes and improvements;
• Working directly with government and contractor POCs to troubleshoot issues;
• Proactively recommend configuration changes to help improve system performance;
• Regularly work with government and contractor POCs to keep systems security compliant; and
• Author and update operational and security documentation, including troubleshooting guides and SOPs.
• Other tasks as assigned.

Qualifications

• Requires BS degree and 8+ years of prior relevant experience or Masters with 6+ years of prior relevant experience; OR additional years of experience in lieu of degree
• Must currently possess an active TS/SCI Clearance with ability to obtain & maintain a Polygraph post hire
• Must meet DOD 8570 Certification (Security+ or equivalent or higher)
• Proactive self-starter demonstrating a positive, willing attitude and excellent oral and written communication skills
• Demonstrated ability to adapt to new technologies and learn quickly
• Organizational Skills: Can plan and prioritize work. Follows tasks to their logical conclusion and makes sure that everything has been done to the right standard. Good attention to detail.
• Communications: Ability to communicate clearly and efficiently to team members and clients, verbally and in writing. Able to present ideas in a variety of ways depending upon audience and context.
• Linux administration experience provisioning end users
• Experience managing and configuring RHEL environments
• Experience building, optimizing, and maintaining multi-node environments that run parallel workloads
• Experience with Linux clusters, specifically Slurm and MPI, to support High-Performance Computing (HPC) systems
• Strong understanding of NGA Networking
• Proficient reviewing STIG/IAVA scans and remediating vulnerabilities
• Experience performing Virtual Machine backups/snapshots
• Experience working with Security to support ISCP exercises
• Experience scripting for administration, configuration, troubleshooting, and automation
• Knowledge of Systems, Architectural, SW Development and SW Sustainment Practices

Preferred Qualifications

• Red Hat Certification(s)
• Agile Certification(s)
• Team Collaboration tools and administration (Jira, Confluence)

Job Details

2026-09-25 Code AQI-000346 Type Full-Time City, State Alexandria or Chantilly (St. Louis MO is an option) , Virginia Country United States