Patch and Linux Administrator (Systems Administrator 3) 26079

Requisition Number: 26079 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $87,990.00 - $100,000.00 Security Clearance: Ability to Obtain Level of Experience: Mid Meet HII's Mission Technologies Division Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense - the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that's right for you. Apply today. We look forward to meeting you. To learn more about Mission Technologies, click here for a short video: Come Join HII! Where Hard Stuff is Done Right! We are seeking an experienced Patching and Linux Administrator III to join our infrastructure team. This role requires deep technical expertise in enterprise patch management and system administration across multiple operating systems, including Red Hat Enterprise Linux (RHEL), Ubuntu, and macOS. The ideal candidate will be responsible for managing comprehensive patch management operations, maintaining system health and security, and leveraging automation tools including Ansible and SaltStack to ensure efficient, secure, and compliant infrastructure operations. Responsibilities: I want to and can do that! Patch Management & Vulnerability Remediation - Plan, schedule, and execute enterprise-wide patch management cycles using BatchPatch or similar enterprise patching tools across RHEL, Ubuntu, and macOS environments - Develop and maintain comprehensive patch management policies, procedures, and schedules to minimize security vulnerabilities and ensure compliance - Coordinate monthly and quarterly patching windows, ensuring minimal disruption to business operations while maintaining security posture - Test patches in non-production environments before deploying to production systems to prevent system disruptions and compatibility issues - Monitor patch deployment status continuously, identifying failed deployments, and taking immediate corrective actions - Integrate patching workflows with Ansible and SaltStack for automated, orchestrated updates across heterogeneous environments - Troubleshoot failed patch deployments and develop comprehensive remediation strategies - Maintain and update system baselines and gold images with current patches System Administration & Management - Design, implement, and maintain enterprise Linux systems running RHEL and Ubuntu distributions - Administer macOS systems in an enterprise environment, including integration with Linux infrastructure - Perform system installations, configurations, upgrades, and maintenance across all platforms - Monitor system performance, troubleshoot issues, and implement solutions to ensure optimal uptime and availability - Manage user accounts, permissions, and security policies across multiple operating systems - Maintain system documentation including patch histories, configuration changes, and system inventories Infrastructure Automation & Configuration Management - Design, develop, and maintain Ansible playbooks and roles for system provisioning, configuration, patch deployment, and orchestration - Build and maintain SaltStack (Salt) states, pillars, and formulas for automated configuration management and patch automation - Implement infrastructure as code (IaC) principles using Ansible and Salt across heterogeneous environments - Develop and maintain automation scripts using Bash, Python, or other scripting languages to streamline patching and system management processes - Automate patch testing, validation, and rollback procedures - Create and maintain system documentation, runbooks, and standard operating procedures - Optimize and troubleshoot existing automation workflows for improved efficiency and reliability Requirements: I have already done that or have it! - 6 years relevant experience with Bachelors in related field; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience. - Minimum 5 years of progressive Linux administration experience - Minimum 3 years of dedicated patch management experience in enterprise environments - Experience managing heterogeneous environments with multiple operating systems - Proven track record of implementing large-scale patching and automation projects - Experience with change management and ITIL processes - Experience managing patching for environments with 500+ systems Preferred Requirements - 5+ years of hands-on experience administering Linux systems in enterprise environments - 3+ years of dedicated experience in enterprise patch management operations - Expert-level knowledge of Red Hat Enterprise Linux (RHEL 7/8/9) - Strong proficiency with Ubuntu Server (18.04/20.04/22.04 LTS) - Demonstrated experience managing macOS in an enterprise setting - Extensive experience with enterprise patch management tools such as BatchPatch, Red Hat Satellite, Landscape, Jamf Pro, WSUS, or similar solutions - 3+ years of production experience with Ansible, including playbook development, roles, and complex orchestration - 3+ years of production experience with SaltStack (Salt), including state files, pillars, grains, and event-driven automation - Strong understanding of patch management methodologies, testing procedures, and rollback strategies - Advanced knowledge of shell scripting (Bash, Python, or Perl) - Experience with package management systems (yum/dnf, apt, Homebrew) - Strong understanding of networking concepts (TCP/IP, DNS, DHCP, routing, firewalls) - Experience with virtualization technologies (VMware, KVM, or similar) - Proficiency with version control systems (Git, GitLab, GitHub) - Experience with monitoring tools (Nagios, Zabbix, Prometheus, or similar) - Knowledge of vulnerability management tools (Nessus, Qualys, Tenable, Rapid7, or similar) - Experience with ticketing systems (ServiceNow, Jira, or similar) Preferred Qualifications - Red Hat Certified Engineer (RHCE) or Red Hat Certified Architect (RHCA) - Red Hat Certified Specialist in Ansible Automation - Red Hat Satellite Administrator certification - Ubuntu Certified Professional or equivalent certification - Apple Certified Support Professional (ACSP) or Jamf Certified Administrator - Certified Information Systems Security Professional (CISSP) or Security+ certification - Experience with Red Hat Satellite 6.x or Foreman for patch management - Experience with Ubuntu Landscape for fleet management - Experience with Jamf Pro for macOS management and patching - Experience with containerization technologies (Docker, Kubernetes) - Knowledge of cloud platforms (AWS Systems Manager, Azure Update Management, or GCP) - Experience with CI/CD pipelines and DevOps practices - Familiarity with storage technologies (SAN, NAS, distributed file systems) - Experience with other configuration management tools (Puppet, Chef, Terraform) - ITIL Foundation or similar change management certification - Experience with Windows patching (WSUS, SCCM) is a plus Physical Requirements Adequate visual acuity and manual dexterity for meeting the requirements of the Systems Analyst discipline. HII is more than a job - it's an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application. Why HII We build the world's most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals. Recognized as one of America's top large company employers, we are a values and ethics driven organization that puts people's safety and well-being first. Regardless of your role or where you serve, at HII, you'll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career. Together we are working to ensure a future where everyone can be free and thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law. Do You Need Assistance? If you need a reasonable accommodation for any part of the employment process, please send an e-mail to [email protected] and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.