CDS IDAM Linux Sys Admin

RTX•Richardson, TX

1d•Onsite

About The Position

RTX is seeking a highly skilled and motivated Linux System Administrator with extensive experience in Red Hat Enterprise Linux (RHEL), Automation, and Windows Active Directory integration. The ideal candidate will also possess a strong understanding of Public Key Infrastructure (PKI) and demonstrate the ability to manage secure, mission-critical systems in a fast-paced environment. The role will involve implementing, maintaining, and troubleshooting systems to ensure optimal performance and security in support of RTX's aerospace and defense operations.

Requirements

Typically requires a University Degree or equivalent experience and a minimum of 5 years of experience, or an Advanced Degree and a minimum of 3 years of experience.
Minimum 5 years of experience in Identity and Access Management practices and ITIL methodologies.
Minimum 5 years’ experience with Red Hat Enterprise Linux (RHEL) system administration.
Minimum 5 years of Certificates and Certificate Management, along with Public Key Infrastructure (PKI).
Minimum 5 years OS troubleshooting experience with Windows 11, RHEL 9/10, and Windows Server systems for agent issues.
Minimum 5 years in networking and networking concepts along with basic network troubleshooting tools like ping, tracert, etc.
Minimum 5 years of Active Directory and Active Directory concepts along with basic AD tools like ADUC, DNS, sites and services, etc.
Active and transferable U.S. government issued TOP SECRET security clearance is required prior to start date.
U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Certifications such as Red Hat Certified System Administrator (RHCSA), Red Hat Certified Engineer (RHCE), Security + or equivalent.

Nice To Haves

Proficiency with Agile tools such as Atlassian Jira and Confluence to support project management and team collaboration.
Experience with cloud-based solutions and familiarity with automation tools to streamline processes.
Experience with cloud environments and hybrid infrastructure.
Experience with Infrastructure as Code (IaC) using version control (Git, BitBucket, or similar technologies) and orchestration (Jenkins, Ansible Automation Platform, or similar technologies) using a GitOps philosophy.
Knowledge of virtualization technologies (e.g., VMware, Hyper-V).
Experience with network protocols and services (e.g., DNS, DHCP, NTP).
Understanding of compliance frameworks (e.g., NIST, RMF, or DoD STIGs).
Knowledge of RSA SecurID Software and Portals.
Knowledge of Centrify (Delinea) implementation, configuration, and management.
Knowledge of Apache Tomcat, including installation, configuration, performance, and troubleshooting.
Familiarity with SUSE Linux, specifically in managing and configuring Authentication Manager OS.

Responsibilities

Install, configure, and maintain RHEL-based Linux systems and Windows servers to meet operational requirements.
Develop and implement automation scripts and tools to optimize system administration and operational tasks using a version control repository and a DevSecOps approach.
Perform system upgrades, apply patches, and resolve technical issues to minimize downtime and maintain platform stability with an Infrastructure as Code (IaC) approach using Continuous Integration / Continuous Delivery (CI/CD).
Perform system monitoring, tuning, and troubleshooting to ensure high availability and performance.
Apply security hardening and compliance practices to meet government and industry standards using a GitOps philosophy for operational updates.
Manage user accounts, permissions, and access control in a secure environment using a GitOps philosophy for operational updates.
Assist in system backups, recovery, and disaster recovery planning.
Develop and maintain technical documentation, system configuration, Standard Operating Procedures (SOPs), process and procedural documentation for both end-users and administrators.
Proven teamwork and collaboration skills, with experience working across multiple sites and cross-functional teams.