Infrastructure Manager

Overview

i3 is seeking a creative and driven Infrastructure Manager with a passion for solving real world issues on a cross-functional, fast paced team. Candidate will be responsible for working closely with the system administrators and end users to properly design and maintain the network. Candidate should have a strong background in Red Hat Linux, Windows Server or Cisco networking.

As the infrastructure manager your role is to ensure the stability, integrity and efficiency of the in-house network that supports an Army network. The Infrastructure Manager will apply communication, analytical, and problem-solving skills to help identify, communicate and resolve issues to maximize the benefit of IT systems investments while leading a team of systems administrators and network engineers.

Responsibilities

• Develops, manages, and leads a team of Systems Administrators by providing advice, guidance, learning opportunities, feedback, and training.

• Provide technical expertise supporting information system components, infrastructure integration and maintenance to satisfy system security requirements for several stakeholders. i.e. ZTA, MFA, implementing policies and procedures for best practices.

• Provide direct customer service and technical support to local and remote users as required via phone, e-mail, on-line systems and in person.

• Configure information technology infrastructure in accordance with best practices and DISA STIGs.

• 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.

• Install software, updates, patches and upgrades.

• Understanding of software configuration management, build, deployment and release management, application lifecycle management, infrastructure, and DevSecOps tools and processes.

• Have a customer centric approach and provide all levels of support for the technical and cyber team as well as the user base community. 

• Coordinate OS, middleware, and database patching.

• Notify affected teams of the upgrade and patching activities.

• Similarly, work with application teams to identify server needs for new applications.

• Provides advice and training to end-users and provides mentorship to junior team members.

• Other duties as assigned.

Qualifications

Education/Experience

• Bachelor’s degree in Computer Information Systems, Information Technology, Computer Science, or a related technical field. Additional experience may substitute for degree.

• 10-15 years of relevant experience.

• U.S. Citizenship required.

• Active Secret clearance required to start. Must be able to maintain the security clearance required for this position.

• Prior experience as a Systems Administrator.

• 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.

• Experience with storage, backup and disaster recovery technologies.

• MS Windows server installation/configuration experience.

• Group Policy / Active Directory configuration and management.

• Experience with PowerShell.

• Knowledge of O365, SharePoint, and Azure.

• Certifications:

• Required: CompTIA Security+ CE

• Preferred: CCNA, RHCSA, Microsoft O/S cert.

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.

About i3

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!

Job LocationsUS-AL-Huntsville

ID 2026-5233

Type Full-Time

Clearance Secret Required