Senior Linux Administrator

Senior Linux Administrator Concept Solutions is seeking a Senior Linux Administrator to support the FAA's Infrastructure & Operations (I&O) Program in managing, securing, automating, and optimizing enterprise Linux and hybrid cloud environments across physical, virtual, and cloud-based infrastructure. This role is responsible for Linux systems administration, OS lifecycle management, automation, security compliance, patching, and infrastructure modernization in support of mission-critical FAA operations. The Senior Linux Administrator will serve as a technical expert supporting Red Hat Enterprise Linux (RHEL) across enterprise environments. This position focuses on advanced Linux administration, automation, cloud provisioning, security hardening, patching, storage, virtualization, and operational consistency through infrastructure-as-code and DevSecOps practices. The ideal candidate brings strong scripting, cloud, virtualization, and security expertise with the ability to support large-scale enterprise deployments while maintaining FAA operational and compliance standards. Participation in monthly weekend patching rotation with partial flex scheduling. Linux Systems Administration & Engineering Administer, configure, maintain, and troubleshoot enterprise Linux environments consisting of RHEL 7+. Manage Linux OS lifecycle processes including automated deployment, provisioning, maintenance, patching, and decommissioning across physical, VMware, Nutanix, and cloud environments Build and deploy Linux systems from bare metal, virtual infrastructure, and cloud platforms using standardized automation frameworks Manage Linux storage, partitioning, RAID groups, file systems, volume management, and backup/recovery processes Support Linux Active Directory integration, FreeIPA authentication services, and enterprise identity management Automation, Scripting & DevSecOps Develop and maintain automation solutions using Python, Bash, PowerShell, Terraform, and Ansible Automate OS deployments, patching, software distribution, server configuration, and lifecycle management Build and manage AMIs, deployment templates, and cloud/virtual images Support Git/Bitbucket workflows and DevSecOps toolchains Leverage AI-assisted development tools (e.g., Visual Studio Code frameworks) to improve operational efficiency Security, Compliance & Patching Implement and maintain Linux security controls including SELinux, iptables, STIGs, OpenSTIG, and OS firewall configurations Perform vulnerability remediation, security hardening, and compliance validation Execute automated OS patching using tools such as Tanium or Red Hat Satellite Participate in scheduled monthly patching rotations, including weekend maintenance windows Support change control, audit readiness, and agency security initiatives Cloud, Virtualization & Infrastructure Provision and manage AWS/Azure cloud services including EC2, S3, RDS, Security Groups, and cloud accounts Support VMware and Nutanix guest OS deployment and management Manage enterprise storage solutions across virtualization and cloud platforms Troubleshoot network connectivity, TCP/IP, subnetting, and port/service dependencies Operations, Documentation & Collaboration Support incident, service request, and break-fix activities through Jira and ServiceNow Document operational procedures, deployment processes, and technical standards in internal knowledge bases/Wikis Collaborate with Agile teams, infrastructure engineers, security teams, and application owners Provide exceptional customer service while supporting enterprise stakeholders Requirements Bachelor's degree in Information Technology, Computer Science, or related field and 8+ years of relevant experience Strong experience administering Red Hat Enterprise Linux (RHEL 7+) environments Strong scripting experience in Python and Bash Experience with Terraform, Ansible, PowerShell, Git/Bitbucket Knowledge of Linux security including SELinux, iptables, STIG implementation, OpenSTIG Experience with AWS/Azure cloud provisioning Experience with VMware and/or Nutanix Knowledge of Active Directory integration Experience with Tanium, Satellite, or enterprise patch automation Strong TCP/IP networking fundamentals Ability to obtain RHCSA certification or equivalent Preferred Qualifications AWS Cloud certifications (Cloud Practitioner plus advanced certification such as Solutions Architect, Developer, or Security) Experience with FreeIPA Experience supporting large-scale federal or regulated enterprise environments Familiarity with Agile/DevSecOps methodologies Experience with enterprise backup/recovery strategies Work Location and Schedule Primary Location: Atlantic City, NJ Schedule: Hybrid- 3 days a week in the office FAA Personnel Suitability clearance required (AMS 3.14-2) Compensation: $95K to $108K Company Profile: Founded in 1999 and headquartered in Reston, Virginia, Concept Solutions, LLC (CS) is a leading small business in technology, engineering, and management consulting. We are the innovative and agile force behind strategic solutions that enhance organizational efficiency and safeguard our nation across Aerospace, Defense, and National Security sectors. For over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services. Our commitment to excellence is reflected in our adherence to CMMI-DEV ML3, ISO 9001:2015, ISO/IEC 20000-1:2018, and ISO/IEC 27001-1:2013 standards. CS boasts company highlights that include: Over two decades of experience across over $300 million in contract awards supporting critical FAA programs Multiple contract vehicles providing opportunities across FAA, DoD, NOAA, and other Federal agencies Innovation Council - CS maintains an active Internal Research and Development (IR&D) program that is geared towards identifying emerging technologies and pursuing technological innovations At CS, we know our success stems from our talented team. That's why we prioritize the wellbeing and growth of our employees, fostering a positive culture centered on innovation, engagement, and career development. Benefits: Concept Solutions offers a competitive benefits and salary package you would receive from a large company. We offer health, dental, vision and life insurance, as well as a comprehensive 401(k) plan with matching and immediate vesting. Concept Solutions is an Equal Opportunity Employer, and we value workplace diversity. We invite resumes from all interested parties and consider applicants for all positions without regard to race, color, religion, sex, national origin, age, marital status, sexual preference, personal appearance, family responsibility, the presence of a non-job-related medical condition or physical disability, matriculation, political affiliation, veteran status, or any other legally protected status. Concept Solutions is a VEVRAA federal contractor, and we request priority referral of veterans for available positions. ConceptSolutions