Senior Linux Administrator

i3 is searching for a Senior Linux Administrator to support the Missile Defense Agency Information Management and Software Services (AIMSS) effort. The mission is to design and implement a Missile Defense System with multiple layers of protection. The Senior Linux Administrator performs administration of cloud and on-site Linux technologies and provides end-to-end solutions for IT Systems. Creates and configures virtual and physical machines in a multi-platform environment. Monitors system performance and addresses any issues through an effective support process. This position is located at Redstone Arsenal in Huntsville, AL.

• Build, configure, and maintain standardized Linux Operating Systems (such as RHEL 9) in various technical use cases.
• Build and maintain virtual machine Linux golden images from source code management.
• Integrate Linux operating systems with Active Directory environments utilizing tools such as SSSD.
• Maintain software repository mirrors utilizing Red Hat Satellite servers and custom scripts.
• Integrate multifactor authentication, CAC/smartcard PKI and certificate management in a mixed Windows/Linux environment.
• Work with teammates on an agile project with a focus on providing a secure, versatile, efficient, reproduceable, and highly scalable computing environment.
• Responsible for the installation, maintenance, configuration, and integrity of computer software and implementing operating system enhancements that will improve the reliability and performance of the applications and systems.
• Perform Linux system configuration, patching, and vulnerability remediation utilizing Ansible, Terraform, Chef, GitLab, or other automation tools.
• Coordinate hardware and software upgrades and installations with network and security teams.
• Apply security controls as defined in DISA’s Security Technical implementation Guides (STIGs). Ensure compliance with established MDA cybersecurity compliance standards for Linux and VM computing systems.
• Implement and ensure operations for DOD security controls such as Security Technical Implementation Guidelines (STIG) and Host Based Security Systems (HBSS).
• Maintains the integrity and security of servers and systems applicable to the compliance of RMF accreditation packages.
• Monitor, evaluate, and maintain systems and procedures to safeguard information systems, networks and databases.  
• Have a customer centric approach and provide all level of support for the technical and cyber team as well as the user base community. 
• Provides advice and training to end-users and provides mentorship to junior team members.

Education/Experience

• Bachelor’s degree in Computer Information Systems, Information Technology, Computer Science, or a related technical field. Additional experience may substitute for degree. 
• Minimum 12+ years of relevant experience required.
• Senior knowledge and experience of Linux operating systems (RHEL).
• Experience with different database systems (PostgreSQL and MySQL).
• Experience with container solutions (Podman).
• Experience with Ansible playbooks.
• Working knowledge of current systems and applications.
• Ability to troubleshoot and resolve software and hardware conflicts.
• Be able to quickly adapt to new situations, have a strong commitment to a team environment, maintain a capacity to work with little supervision, and the willingness to learn new technologies.
• Must hold an approved DoD 8140 certification - CompTIA Security+ CE.
• Must have an approved Linux Operating System Training Certificate.
• Active Secret clearance required. Must be able to maintain the security clearance required for this position.
• Must reside within a 50-mile radius of Redstone Arsenal in Huntsville AL or be willing to relocate prior to start date.
• Ability to reliably commute to the office as business needs dictate.
• U.S. Citizenship.

Knowledge/Skills

• Knowledge of office administration and procedures.
• Exceptional judgment capabilities and relationship management skills.
• Excellent communication, teamwork, and client service skills; ability to clearly communicate in discussions and written documents, and to deliver feedback clearly and tactfully.
• Interact with a diverse array of customers and staff in a professional and courteous manner.
• Work independently with accountability for accurate and complete results.
• Be extremely organized and exceptionally detail oriented.
• Work well both independently and in a team environment.
• Be energized by a fast-paced work environment.
• Must be able to communicate with others effectively.
• Analyze information and respond appropriately.
• Manage time wisely and prioritize tasks.
• Provide superior customer service. 
• Multi-task in a pleasant manner.
• Work well under pressure.

PHYSICAL DEMANDS

• The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
• While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.
• The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
• Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.
• Regular i3 hours are 8:00 a.m. - 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required.

i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic warfare and electromagnetic effects analysis, UAS system integration and flight operations, full lifecycle C5ISR engineering services, cybersecurity and IT/IA innovative solutions and virtual training, simulation & serious game development and implementation. We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers.

Perks of being a team member owner include:

• Long-term financial security
• Higher job satisfaction
• Greater job security
• Personal and professional growth
• Great company culture

Other outstanding benefits:

• Excellent insurance coverage
• 401(k) match
• Generous PTO
• Health and wellness incentives
• Tuition and certification reimbursement
• Countless opportunities to give back to the community through i3 Cares

We work hard. We compete hard. We play hard. Apply now to join us!