****Candidate MUST HAVE an Active Top Secret with eligibility for SCI to apply for this role
Title: Senior Linux Systems Engineer
Terms of Employment Full-Time, Permanent
This position is onsite 4 days per week in Ft. Washington, MD. Once every two-to-three weeks, there is one day of work onsite in Warrenton, VA. The ability to work remotely once per week is acceptable.
Required Clearance:
Overview & Responsibilities
As a Senior Linux Systems Engineer, you will serve as the technical authority for a Red Hat Enterprise Linux (RHEL) environment supporting the Cameo (Dassault Systmes/No Magic) suite. This role requires more than standard administration; we are looking for a specialist with CLI-level mastery capable of deep-tier kernel tuning and performance optimization. You will ensure the integrity of server resources, manage a complex Virtual Desktop Infrastructure (VDI), and provide high-level technical support to a large community of system engineers and partners.
You will be responsible for
Advanced Systems Engineering & Kernel Optimization
Perform kernel-level tuning (sysctl), I/O scheduling, and memory management to optimize RHEL for high-demand MBSE workloads.
Execute all administrative tasks, file management, and system troubleshooting via the command-line interface (CLI) in a headless or cloud environment.
Proactively monitor system health and performance to ensure 99.9% availability of mission-critical server resources and hardware.
Cameo & VDI Administration
Act as the primary administrator for Cameo Systems Modeler and Teamwork Cloud, managing user groups, permissions, and server-side configurations.
Configure and troubleshoot user profiles in a virtual desktop environment using XRDP.
Create, maintain, and deploy virtual desktop images, ensuring optimized disk storage and session management for multiple concurrent users.
Security, Automation & Compliance
Work closely with ISSO/ISSE teams to ensure systems meet ATO/accreditation standards through aggressive scanning, patching, and STIG compliance.
Utilize Ansible, Puppet, or scripting (Bash/Python) to automate routine maintenance and configuration management.
Author and maintain technical standards, Standard Operating Procedures (SOPs), and "RunBooks" to ensure continuity of operations.
Agile Integration & Collaboration
Maintain a detailed work backlog in JIRA, participating in Agile ceremonies and communicating technical status to PMs and Government leads.
Explain complex technical considerations to external partners and provide high-tier technical support to the user community.
Required Skills & Experience
Active Top Secret clearance with SCI eligibility.
IAT Level II compliant (e.g., Security+, CySA+, GSEC, SSCP, CCNA Security, CND, GICSP).
Expert-level knowledge of Red Hat Enterprise Linux (RHEL).
Expert-level proficiency in the Linux Command Line Interface (CLI). Must be able to manage the full OS lifecycle without a Graphical User Interface (GUI).
Demonstrated experience in Linux kernel tuning and performance optimization for enterprise-scale applications.
Proven experience with XRDP, VDI session management, and image deployment.
Proficiency in Cameo / No Magic software.
Experience using JIRA.
Proficiency in Bash or Python scripting and Ansible configuration management.
Solid understanding of TCP/IP, SSH, and secure networking protocols.
Preferred Skills & Experience
Active Top Secret/SCI clearance.
Red Hat Certified System Administrator (RHCSA) or Engineer (RHCE).
Experience with cloud-based Linux deployments.
Background in Model-Based Systems Engineering (MBSE) workflows.
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