LinQuest is seeking a Senior Linux Systems Administrator to join our team in Colorado Springs, CO. An active TS/SCI clearance is required.

As a Linux Administrator, you will be responsible for administering, managing, and maintaining the Linux-based systems within our organization. Your primary focus will be on ensuring the stability, security, and performance of our Linux infrastructure, as well as providing support to end-users and other IT teams. This role requires a strong understanding of Linux operating systems, networking, scripting, and troubleshooting skills.

Responsibilities:

• Engineering of systems administration-related solutions for various project and operational needs
• Maintain best practices on managing systems and services across all environments
• Fault finding, analysis and of logging information for reporting of performance exceptions
• Troubleshoot and resolve issues related to server hardware, system and user application software, and networking.
• Collaborate with other IT and user teams to integrate improve overall performance, functionality and capabilities of the systems and applications.
• Proactively monitoring system performance and capacity planning
• Manage, coordinate, and implement software upgrades, patches, hot fixes on servers, workstations, and network hardware
• Create and modify scripts or applications to perform tasks
• Provide input on ways to improve the stability, security, efficiency, and scalability of the environment
• Collaborate with other teams and team members to develop automation strategies and deployment processes
• Monitor system performance and ensure optimal operation of Linux-based systems.
• Implement and maintain security measures to protect Linux servers from unauthorized access and vulnerabilities.
• Perform system updates, patches, and upgrades on a regular basis to ensure system stability and security.
• Utilize package management utilities such as Yum and DNF for package installation, removal, and dependency resolution.
• Develop and maintain scripts to automate routine tasks and improve system efficiency.
• Provide technical support and assistance to end-users and other IT staff.
• Create and maintain documentation for Linux systems, configurations, and procedures.
• Integrate Linux systems with Microsoft Active Directory (AD) for centralized authentication and user management.
• Implement appropriate security configurations, as well as any mitigations and remediations.
• Manage group permissions and access control lists (ACLs) within Linux environments.
• Support of security compliance through design control, configuration/change control documentation, patch testing, verification and remediation releases and decisions.
• Develop and document systems administration standard operating procedures such as baseline, procedures, and processes to achieve system administration functions.
• Deploying and maintaining container systems such as Docker and Kubernetes, ensuring efficient application deployment and scalability.

Required Skills and Experience:

• Bachelor's degree in Information Technology, Computer Science, or related fields. Equivalent years of experience considered.
• Minimum of 7-10 years of experience in System/network administration or related fields.
• DOD 8570.01M IAT 2 certification CompTIA Security+ or higher IAT cert required.
• Preferred certifications: CompTIA Linux+, Red Hat Certified System Administrator (RHCSA) (preferred).
• In-depth knowledge of Linux operating systems (e.g., CentOS, Ubuntu, Red Hat), including installation, configuration, and administration.
• Strong understanding of networking concepts and protocols.
• Experience with virtualization technologies.
• Proficiency in shell scripting (Bash, Python, Perl) for automation and system tasks.
• Familiarity with security best practices and tools for securing Linux servers (e.g., firewalls, SELinux, SSH).
• Possess a strong understanding of Linux file system permissions, application integration and how to effectively manage Linux networks.
• Excellent troubleshooting and problem-solving skills.
• Ability to work independently and as part of a team in a fast-paced environment.
• The ability to work in a secure, confined location as needed (i.e., SCIF)
• US citizenship and an active TS/SCI government security clearance.

Compensation: The salary for this position ranges from approximately $110,000 to $125,000 depending on relevant experience and qualifications.

Benefits:

LinQuest offers comprehensive and competitive benefit offerings to our team members to include medical, dental, vision, retirement, paid time off, tuition reimbursement, company paid life insurance, and more! For additional information please visit:

Why LinQuest?

LinQuest Corporation has a stellar 40-year track record of providing end-to-end system-of-systems (SoS) architecture definition, engineering design, integration and test, and operations expertise to enable full lifecycle development and deployment of pre-eminent Space, Air, Land, Sea, Ground, and Cyberspace game-changing capabilities across US DOD and IC Customers' portfolios. Unique combination of in-depth domain knowledge, lessons learned-honed best practices, and mission-specific applications of principles, tools, and techniques of Digital Engineering (DE), DE Ecosystem (DEE), and Model-Based Systems Engineering (MBSE) set LinQuest apart from the competition to consistently deliver stellar high-value results for our customers. LinQuest's corporate vision and values place the employee at the center of utmost customer satisfaction, strategic business growth, and tactical execution excellence. Our employees' creative and inspirational drive, sense of fulfillment of personal and professional growth, and tightknit camaraderie within and across lines of business are essential in gaining and maintaining exceptional LinQuest corporate-wide results of new business awards and renewed contracts.