CDS IDAM Linux Sys Admin

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity.

The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, VA.

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.

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 Dev Sec Ops  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 Git Ops philosophy for operational updates.

Manage user accounts, permissions, and access control in a secure environment using a Git Ops 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.

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.

Proficiency with Agile tools such as Atlassian Jira and…