Senior Linux Systems Administrator
Senior Linux Systems Administrator
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1 Vacancy
Job Description
Overview
i3 is seeking a Senior Linux Systems Administrator to support an Army Contract. The Senior Linux Systems Administrator will provide technical expertise supporting information system components infrastructure integration and maintenance to satisfy architectural and business requirements in support of customer labs. The Senior Linux Systems Administrator must have a customer centric approach and provide all levels of support for the user base community. Candidates for this position must possess at a minimum a United States SECRET level security clearance.
Responsibilities
- Provide direct customer service and technical support to local and remote users as required via phone email online systems and in person.
- Work with teammates on an Agile project with a focus on providing a secure versatile efficient reproduceable and highly scalable computing environment.
- Maintain system configurations with Infrastructure as Code (IaC) in git repositories.
- Perform Linux system configuration patching and vulnerability remediation utilizing Ansible Terraform Chef GitLab or other automation tools.
- Work with customers and infrastructure team to ensure satisfactory DevSecOps CI/CD pipeline operation on OpenShift clusters and other Linux systems.
- Deploy and maintain OpenShift cluster nodes on baremetal and cloud infrastructure.
- 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.
- Apply security controls as defined in DISAs Security Technical implementation Guides (STIGs).
- Assist with implementation of Risk Management Framework (RMF) 2.0 Continuous monitoring tools and processes.
- Support periodic Independent Security Assessments (previously known as Security Control Assessor Validation or SCAV).
- Implement security configurations derived from zerotrust principles.
- Create manage and maintain network storage servers.
- Maintain and produce documentation in markdown and other formats as required.
- Assist Cybersecurity team with developing Risk Management Framework (RMF) accreditation documentation SOPs policies and work instructions as needed.
- Continuously improve your skills and the project by researching training on assessing and implementing new technologies and processes.
Qualifications
- Bachelors degree in Information Technology Cybersecurity Data Science Information Systems or Computer Science and 6 years experience or 10 years equivalent experience.
- Must meet DoD 8140 Intermediate System Administrator qualifications such as holding a Security Cloud GICSP SSCP or GSEC certification (or higherlevel applicable certification).
- Must have a Linux certification equivalent or higherlevel Linux computing environment certification.
- Ability to work with little or no direct supervision and in a team environment.
- Must have excellent customer service skills.
- Requires strong Linux (RHEL CentOS) Operating System and troubleshooting skills.
- Strong DoD Security practices and knowledge.
- Working experience with Linux automation tools is a plus.
- Working experience with infrastructure as code and source code management is a plus.
- OpenShift or Kubernetes experience is a plus.
- AWS Azure or GCP cloud computing experience is a plus.
- Secret Security clearance required.
- U.S. citizenship 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:
- Longterm 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!
Required Experience:
Senior IC
Employment Type
Full-Time
