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# Senior Linux Systems Administrator & Software Maintenance Engineer (Onsite)

- **Company:** RTX
- **Location:** Fort Meade, MD, United States
- **Experience:** Expert
- **Salary:** $86,800 - $165,200
- **Contract:** Permanent contract
- **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), PHP (Programming Language), Software Applications, Backup Devices, Bash Shell, Server Message Block, Cyber Security, System Configuration, Dynamic Host Configuration Protocol, Software Debugging, Linux, Disaster Recovery, Domain Name System (DNS), Identity and Access Management, Networking Hardware, Python (Programming Language), Kernel-Based Virtual Machine, Lightweight Directory Access Protocols (LDAP), Linux System Administration, NetBackup, Network Connections, Network File Systems, Performance Tuning, Software Maintenance, Red Hat Enterprise Linux, Ansible, Samba (Software), Shell Script, Software Engineering, Virtualization Technology, Extensible Markup Language (XML), Network Routers, Data Storage Management, Kubernetes, Performance Monitor, Hardware Infrastructure, Network Server
- **Published:** November 12, 2026
- **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-MD-FORT-MEADE-9800-CUST--9800-Savage-Rd--SAVAGE-External-Site/Senior-Linux-Systems-Administrator---Software-Maintenance-Engineer--Onsite-_01887773

## About the Role

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, * Active and transferable U.S government issued TS/SCI U.S. security clearance is required prior to start date

 * Current DoD 8570.1 IAT Level II or IAM Level I certification (e.g., Security+ CE, CCNA Security, CySA+, CAP, etc.)
 * Previous experience with Red Hat Enterprise Linux Administration.
 * > 3 years of Linux Systems Administration experience
 * > 3 years of Software Development with Java and Python.
 * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience, * Experience with Linux architecture, deployment, administration, networking, performance monitoring/tuning, security hardening, and troubleshooting
 * Experience with DHCP, DNS, LDAP, IPA, CIFS, NFS, Samba and *NIX system security
 * Experience with infrastructure backup, restore, disaster recovery and business continuity products like Symantec NetBackup
 * Experience gathering requirements, designing, and implementing appropriate solutions
 * Experience with application installation and multi-server environment/deployment
 * Red Hat Enterprise Linux and Microsoft Windows 10/ Server 2016 system administration.
 * Experience with SW development methods (shell scripts, JavaScript, Python, PHP, Java, XML, HTML, etc.) in a Linux environment
 * Experience with ACAS/Tenable tools
 * Familiarity with Kubernetes and containers

## Description

Collins Aerospace is currently in search of a Senior Linux Systems Administrator & Software Maintenance Engineer (Onsite). The position is based at Fort Meade, MD. The person selected will provide software maintenance support and Linux Systems administration for systems at DMS-MD at Fort Meade, MD. This position will interface daily with users, co-contractors, and customer organizations to troubleshoot and correct problems, analyze performance, and make recommendations on improvements., * Responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux infrastructure for classified programs. Duties include, but are not limited to, server management (software and hardware); storage management (logical and physical); cross platform authentication and access management; data backup and restoration; software and license configuration; and workstation support

 * Implement and maintain an enterprise Linux environment including system administration, networking, performance monitoring/tuning, security hardening, and troubleshooting
 * Configure and maintain STIG-compliant systems in accordance with DoW security standards
 * Troubleshoot hardware and software issues across physical and virtualized environments (RHEL KVM)
 * Automate system tasks using Ansible and Bash shell scripting
 * Install and configure software applications requested by end users
 * Working directly in a customer service environment, ensuring seamless communication and service delivery
 * Manage and maintain servers, operating systems, network connectivity, and networking hardware such as routers and switches
 * Design, develop, and maintain software applications using Python and Java for complex systems and applications
 * Troubleshoot, debug, and optimize existing Java and Python code for performance and efficiency
 * Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
 * Full-time 100% Onsite position