Senior Linux Systems Engineer | DevSecOps, Secret Clearance

SimVentions, Inc.; Virginia; Hybrid; USD 106,000 - 147,000; Full time

Benefits offered by this job

Medical, dental, vision coverage

ESOP

Competitive 401(k)

Education assistance

Paid time off

Job summary

SimVentions, Inc. seeks an experienced Linux System Administrator to provide Linux systems engineering, administration, and DevSecOps support for secure environments. Onsite at Naval facilities or contractor sites 3–4 days weekly; 6–8 years of relevant experience is preferred.

Required ACTIVE Secret Clearance; US citizenship for clearance eligibility. Key duties include system hardening, automation, CI/CD support, and lab environments. Competitive benefits and ESOP offered.

Qualifications

• 6+ years of Linux system administration experience including performance tuning, networking, and service management.
• Strong scripting and development skills in Bash, Python, or similar languages.
• Hands-on experience with configuration management and infrastructure automation.
• Deep understanding of secure system configuration and federal compliance frameworks.
• Experience setting up and maintaining small computer lab environments (hardware setup, OS imaging, network configuration, patching, troubleshooting).
• Proficiency with virtualization and containerization technologies (VMware, KVM, Docker, Podman).

Responsibilities

• Design, develop, and optimize Linux-based applications, tools, and system components.
• Lead administration and hardening of Linux systems (RHEL, CentOS, Ubuntu) across production, development, and secure environments.
• Architect and implement automation solutions using Ansible, Terraform, Bash, Python, or similar tools.
• Diagnose and resolve complex system, network, and application issues, providing Tier 3 expertise.
• Collaborate with cybersecurity teams to ensure compliance with federal security standards (STIGs, NIST, FISMA).
• Support and enhance CI/CD pipelines and DevOps workflows.
• Manage small computer lab environments, including workstation provisioning, OS imaging, patching, network configuration, and hardware lifecycle management.
• Produce clear documentation for system configurations, processes, and operational procedures.

Skills

Linux admin

Scripting Bash

Python

Config management

Security compliance

Lab environments

Virtualization

Containers

Tools

VMware

KVM

Docker

Podman

Job description

SimVentions, Inc. seeks an experienced Linux System Administrator to provide Linux systems engineering, administration, and DevSecOps support for secure environments. Onsite at Naval facilities or contractor sites 3–4 days weekly; 6–8 years of relevant experience is preferred.

Required ACTIVE Secret Clearance; US citizenship for clearance eligibility. Key duties include system hardening, automation, CI/CD support, and lab environments. Competitive benefits and ESOP offered.