Senior Platform Software Engineer – Linux (Onsite)

RTX•McKinney, TX

3d•$86,800 - $165,200•Onsite

About The Position

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. The Advanced Product and Solutions organization at RTX provides the joint warfighter with actionable information from an unblinking eye across the battlespace. By joining the APS Engineering team you’ll have the opportunity to design, develop and test product capabilities for Active Electronically Scanned Array (AESA) radars, integrated sensor suites, precision targeting, multispectral EO/IR targeting systems, Pilot Situational Awareness, Special mission aircraft and Strategic and tactical ISR Systems. But more than anything, we are innovators, creators and strategists drawing inspiration from each other every day. We collaborate, iterate, and execute with an eye toward the company mission and personal career growth. We have an exciting opportunity for a Senior Platform Software Engineer to join our Advanced EO/IR Systems (AES) team in McKinney, TX, which is part of our Advanced Products & Solutions group.

Requirements

Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of prior relevant engineering experience. An advanced degree in a related field may be substituted for an additional 2 years of experience.
CompTIA Security+ certification required
Experience with Red Hat Enterprise Linux (7.x/8.x) including: Software and hardware installation and maintenance, System administration tasks such as patching, RPM packaging, performance tuning, networking, LDAP user management, and security, Securing and hardening RHEL systems per STIG requirements
Scripting with Bash and Python
Linux virtualization (KVM), Linux networking (creating virtual NICs, implementing forwarding rules, bridging interfaces), and general networking capabilities
Experience with developer tools including Git, Artifactory, Bitbucket, Jira, and CI/CD tools (Jenkins or GitLab).
Experience implementing Infrastructure as Code (IaC) and containerized environments using Ansible, Kickstart, Terraform, Chef, Docker, Podman, and Kubernetes to standardize and automate platform provisioning and deployments.
The ability to obtain and maintain a U.S. government issued Secret security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Nice To Haves

Active and transferable U.S. government issued Secret security clearance.
Excellent hardware and software troubleshooting skills
Linux Security, Hardening, and Enterprise Management
Red Hat Certified System Administrator (RHCSA)
Red Hat Satellite administration
LUKS implementation
VM and container hardening and vulnerability analysis
Performance tuning and monitoring
RMF (Risk Management Framework) knowledge
Networking: Configure Layer 2 Cisco switches with simple VLANs, setting static routes, Configure switches as PTP boundary clocks, PTP sync issues, ptp4l, Configure grandmaster clocks (e.g., Safran/Orolia SecureSync)
Enterprise Infrastructure and Identity Services: NAS and SAN administration, DNS, sendmail, LDAP administration, AD, SAML, OAuth, OpenID, and other strong authentication technologies
Cloud and DevSecOps Ecosystems: Familiarity with AWS and Azure, Experience with Platform One DevSecOps platform toolchains and capabilities
Experience with at least one major programming language (Groovy, C++, C#, Python, Java) and troubleshooting on a Linux system
Excellent interpersonal and communication skills
Demonstrated experience learning new technologies, methodologies and processes quickly
Proven ability to work effectively with remote colleagues and customers
Experience administering Windows based systems

Responsibilities

Troubleshoot, maintain, and implement solutions to optimize infrastructure operations for the AES Product Family.
Analyze and identify requirements for new or existing computer, server, peripheral, network, and telecommunications systems, considering specialized technology needs.
Design, implement, code, test, document, and support systems integration for mission‑critical advanced surveillance and targeting system solutions.
Collaborate closely with cybersecurity teams to ensure all security controls are met.
Work alongside software engineers, systems engineers, and implementation teams to ensure performance and deployment compliance.