RTX is seeking a Sr. Principal Backup and Storage System Administrator in Plano, TX, to support classified programs by developing, implementing, and maintaining secure IT infrastructure. The role involves extensive systems administration for Windows and Linux environments, managing backup and storage systems, designing disaster recovery plans, and providing advanced technical support. A top secret security clearance is required.

This role focuses on integrating and hosting critical Digital Technology (DT) Infrastructure within manufacturing environments, ensuring cybersecurity, compliance, and uptime. Responsibilities include developing and deploying DT/OT solutions, architecting network designs, providing technical support for automation engineers, hosting and maintaining server systems, configuring security software, and resolving complex DT issues in OT development spaces. The role requires experience in network design, Windows system administration, and factory IT equipment, with a strong emphasis on cybersecurity and compliance in regulated environments.

Sr. Principal Linux System Administrator role supporting a classified environment in Richardson, TX. Responsibilities include building, maintaining, and securing IT systems, supporting customer mission-critical capabilities, and researching/resolving system problems. Requires an active TS/SCI with CI Poly security clearance and DoD 8570 IAT Level 2 certification.

Principal Linux System Administrator role focused on supporting classified information system capabilities for aerospace and defense programs. Responsibilities include IT systems administration in Red Hat Enterprise Linux and Windows environments, troubleshooting complex technical problems, maintaining security requirements with Cybersecurity professionals, and obtaining necessary certifications. Requires a secret security clearance and U.S. citizenship.

This role is a Product Owner & Data Engineering Lead for Supply Chain & Manufacturing. The responsibilities include designing data products, leading data engineering and integrations, developing analytics solutions, and managing product roadmaps from reporting to AI-driven analytics. The role requires extensive experience in product/data ownership within supply chain/manufacturing, SAP ERP, and handling large datasets, with a preference for experience in MES, AI, and advanced analytics.

This Principal Electrical Engineer role focuses on the design, implementation, verification, and integration of high-performance digital ASICs and FPGAs for signal processing and information assurance products within the aerospace and defense industry. The position requires expertise in RTL coding, digital circuit architecture, timing closure, and verification, with a strong emphasis on contributing to engineering estimates and providing technical leadership.

Principal Mission / Systems Engineer role at RTX (Collins Aerospace) focused on R&D for national security systems, involving system development, deployment, testing, and customer interaction. Requires a TS/SCI clearance and a STEM degree with 8 years of experience in Systems Engineering.

Senior Systems Engineer (System Integration) role at RTX, a defense company, requiring TS/SCI with Polygraph security clearance. Responsibilities include providing systems engineering and integration support, managing projects, and coordinating implementations. Requires a STEM degree and 5+ years of engineering experience, with a strong emphasis on security clearance and collaborative team environments.

Infrastructure / Networking Engineer II role at RTX (Collins Aerospace/Applied Signal Technology) in Salt Lake City, UT. Requires an active TS/SCI with Polygraph security clearance. Responsibilities include designing, developing, testing, and delivering advanced high-capacity systems for SIGINT applications. Requires experience with system development, Python scripting, Linux, system administration, enterprise networking equipment, virtualization, network protocols, and configuration management. Preferred experience includes UI development, storage equipment, object-oriented programming, telecommunications, and containerized systems (Docker, Kubernetes).

Lead digital transformation initiatives for defense programs, focusing on roadmap execution, program management, and cross-functional collaboration. Requires a Top Secret security clearance.

Seeking an experienced Senior Principal Systems Administrator to work in a highly collaborative, multi-platform environment supporting classified programs. Responsibilities include providing technical guidance and mentorship, serving as a technical project leader, managing Windows/Linux infrastructure, servers, storage, and user support. Requires SME-level experience in Active Directory, VMware, NetApp, networking, backup/recovery, server architecture, troubleshooting, DevSecOps, containerization, and Kubernetes. Must hold an active Top Secret security clearance and obtain DoDD 8140/8570 certification within 6 months.

Principal Software Engineer role at RTX (Collins Aerospace) in West Valley City, UT, focusing on software development in a Linux environment with containerization experience. Requires a TS/SCI with Polygraph security clearance and U.S. citizenship. The role involves developing modern programming languages like C++ and scripting languages like Python, working with data structures, and containerization tools (Kubernetes, Helm, Podman). Experience with multithreading, network protocols, embedded systems, and telecommunications/signal processing is preferred. The position is primarily onsite.

This role is for a Principal Digital Program Lead at RTX, focusing on leading the digital transformation roadmap and execution for a program within the Air & Space Defense Systems SBU. The position requires a Top Secret security clearance and involves managing DT scope, cost, and schedule, collaborating with cross-functional teams, and overseeing program financials and compliance. It is an on-site position in Tucson, AZ.

This role supports strategic operations and supply chain initiatives within RTX, a major aerospace and defense company. The ideal candidate will have a consulting mindset, strong problem-solving skills, and experience in financial planning and analysis (FP&A), strategy consulting, or supply chain/manufacturing operations. Responsibilities include applying structured problem-solving, synthesizing data into insights, collaborating with cross-functional teams, and communicating findings to senior leadership.

This role is for a Principal Linux System Administrator at RTX, responsible for IT systems administration in a Redhat Enterprise Linux, Microsoft Windows, and VMWare environment. The position requires a strong understanding of Windows Server and Linux fundamentals, experience with data backup, and collaboration with cybersecurity professionals. A transferable U.S. government issued Secret security clearance is mandatory. The role also requires obtaining DoDD 8140 / 8570 Certification within 6 months.

RTX is seeking a Cloud Network Security Engineer in Puerto Rico to collaborate on network security issues, lead firewall deployments, administer firewalls, and contribute to network security efforts during M&A activities. The role involves updating DNS, DHCP, and IPAM systems, and participating in on-call duties.

Electrical Engineer II specializing in FPGA design for aerospace and defense applications, involving VHDL coding, system architecture, simulation, and verification. Requires a STEM degree and at least 2 years of relevant experience, with a preference for experience in radar, image processing, or embedded systems.

Principal System Administrator role supporting Windows and Linux enterprise environments for classified programs within RTX, focusing on design, implementation, maintenance, patching, vulnerability remediation, and compliance with DoD and regulatory requirements. Requires extensive experience with Windows/Linux server administration, VMware, PowerShell scripting, and a secret security clearance.

System Administrator role at RTX requiring IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment, troubleshooting technical problems, managing virtualized environments, and working with Cybersecurity professionals. Requires a Top Secret security clearance and DoDD 8140/8570 certification within 6 months.

This role is for a Sr. Manager in GTF Repair Supply Chain at RTX, focusing on strategic sourcing and supply chain management for specific engine programs. The candidate will lead negotiations, manage suppliers, drive cost reduction, and optimize material flow. The role requires experience in supply management, understanding of business landscapes, and strong interpersonal, decision-making, and project management skills. It is an onsite position in East Hartford, CT, requiring U.S. citizenship.

Senior Mission / Systems Engineer role at RTX (Collins Aerospace) focused on R&D for national security systems. Requires a TS/SCI with Polygraph security clearance and experience in systems engineering, design, development, and testing of complex hardware and software systems. The role involves customer interaction, problem-solving, and presenting material to stakeholders. Experience with Linux, Fiber Optics, RF, or Telecommunications is preferred.

Principal Systems Engineer focused on Anti-Tamper and Program Protection for DoD programs, involving SSE solutions, customer interaction, threat modeling, and compliance with security policies. Requires a security clearance.

Principal Optical Engineer at RTX (Collins Aerospace) focusing on the design, analysis, development, integration, and testing of high-precision optical and visual display systems for aviation, spacecraft, and head-worn applications. The role involves leading system-level optical requirements, performing various analyses (tolerance, stray-light, STOP), defining testing methods, developing designs using tools like Zemax, guiding prototype development, and mentoring junior engineers. Requires a STEM degree with significant experience in optical engineering and a proven track record in product development.

Senior RF Design Engineer at RTX responsible for the design and development of transmitters, receivers, or exciters, and the design and optimization of RF circuits. The role involves working with interdisciplinary teams, schematic capture, RF routing, and providing technical support during production transitions. Requires a STEM degree, 5+ years of relevant experience, and the ability to obtain a Secret security clearance.

Principal RF Design Engineer responsible for the design and development of transmitters, receivers, or exciters, and the design and optimization of RF circuits. This role involves working with interdisciplinary teams, schematic capture, RF routing, and providing technical support during production transitions. Requires a STEM degree, significant RF/Microwave experience, proficiency with electromagnetic simulation and analytical tools, and the ability to obtain a Secret security clearance.

Senior Information Systems Security Engineer (ISSE) at RTX, a defense company, responsible for managing and securing classified information systems. Requires a strong understanding of cybersecurity principles, compliance regulations (NISPOM, DAAPM, JAFAN, ICD, FAA, HIPAA), and experience with security tools. Must obtain a DoD 8570.01-M IAM level III certification within six months of hire.

RTX is seeking a Program Information Systems Security Manager (ISSM) to oversee compliance, assessment, and operations of systems, particularly those involving classified information. The role requires maintaining knowledge of cybersecurity regulations like NISPOM and RMF, conducting reviews, and managing authorization processes. A transferable U.S. government security clearance is mandatory.

Senior Systems Security Engineer focused on Anti-Tamper and Program Protection for DoD products. Responsibilities include implementing SSE solutions, defining requirements, developing plans, conducting threat modeling, and ensuring compliance with defense policies. Requires a Bachelor's degree in STEM and experience in System Security Engineering, Anti-Tamper, or Cybersecurity for embedded systems.

This role is for a Sr. Principal Engineer, Lead Project Engineer at RTX, focusing on technical leadership and decision-making for aerospace engine development programs. Responsibilities include technical execution, program management using EVMS, milestone tracking, technical communication, scope change management, reliability improvement through fleet monitoring and root cause analysis, resource planning, risk management, and mentoring junior engineers. The role requires a Bachelor's degree in mechanical or aerospace engineering with significant prior experience, and U.S. Person status.

Principal Systems Engineer role focused on software systems within the defense domain. Responsibilities include requirements management, integration, verification, testing, and system performance analysis. Requires experience in Systems Engineering, Integration and Test, and Model-Based Systems Engineering (MBSE).

This role is for a Staff Engineer at RTX, focusing on managing and resolving technical issues for V2500 aircraft engines to ensure safety and operational metrics. The engineer will work directly with operators, field offices, and various engineering groups to troubleshoot issues, monitor the fleet, and update technical documentation. The role requires a Bachelor's degree in engineering and 2+ years of experience, with U.S. citizenship being a mandatory requirement.

This role involves system modeling and data analysis for defense applications, contributing to new business, system design, and performance evaluation. The analyst will support simulation, modeling, and analysis activities throughout the product lifecycle, developing model-based solutions for mission trade studies. Requires experience with scripting languages and modeling physical systems, along with an active security clearance.

Tooling Engineer/Designer at RTX (aerospace and defense) responsible for reviewing and creating designs for new repair tools for military engine programs, ensuring compliance with requirements, and collaborating with various engineering teams. Requires a STEM Bachelor's degree with 8+ years of experience or an Advanced degree with 5+ years of experience, tool design experience, knowledge of GD&T, manufacturing processes, and CAD modeling.

This role is for a Principal Windows System Administrator at RTX, focusing on building, hardening, and sustaining secure Windows environments for classified programs. The position requires deep expertise in Windows technologies, Active Directory, and adherence to security frameworks like DFARS and NIST. The administrator will be responsible for system optimization, troubleshooting, and ensuring compliance within a 24x7x365 environment. A U.S. government security clearance is mandatory.

Design, analyze, simulate, test, and document power conversion and related analog circuitry, focusing on non-isolated and isolated switch mode power converters and linear converters for board-mounted power end-use applications. Architect at the power system level, guide ECAD drafters and junior engineers, and lead teams through design phases from requirements definition to integration testing, managing schedules, budgets, and technical execution.

This role involves providing academic training on system capabilities to warfighters, government personnel, and contractors, both CONUS and OCONUS. The individual will facilitate training events, work independently in a fast-paced environment, use MS Office tools, foster collaboration, prepare reports, and manage project cost, schedule, and progress using Earned Value Management or Risk and Opportunity management methodologies. Experience as a fighter pilot and/or weapon system officer is required, along with an active security clearance.

This role focuses on developing advanced, physics-based modeling solutions in the RF domain for defense applications. The engineer will create C++ models incorporating RF phenomenology and physics concepts to support the design and testing of AI algorithms and hardware. The role involves software development, research into RF modeling, and collaboration with other teams, with a strong emphasis on C++ and Python/MATLAB for data evaluation. While the models support AI development, the core craft is RF signal and sensor modeling, not direct AI/ML model development.

This role is for a Sr. Systems Administrator supporting a Raytheon program in a classified environment. Responsibilities include system monitoring, maintenance, troubleshooting, root cause analysis, documentation, and supporting system engineering groups. The role requires active TS/SCI with CI Poly security clearance and a DoD 8570 IAT Level 2 certification.

This role is for a Senior System Administrator supporting a classified environment at Raytheon. Responsibilities include monitoring and maintaining system health and security posture, collaborating with developers and system engineers, and providing help desk support. Requires a TS/SCI with Poly security clearance and experience with VMWare, Linux, Active Directory, and storage utilities.

This role is for a Digital Program Lead at RTX, focusing on leading digital transformation initiatives within the Air & Space Defense Systems (ASDS) Strategic Business Unit. The DPL will own the roadmap and execution of the Digital Technology (DT) scope to support program work environment needs, acting as a strategic business partner and escalation point. Responsibilities include developing DT roadmaps, leading cross-functional teams, managing metrics and financials, and overseeing DT personnel and resources. A Secret security clearance is required.

Principal Mechanical Engineer role focused on leading the mechanical development of airborne RF and digital electronics subsystems from concept through production, serving as a technical authority, and ensuring performance in demanding environments. Requires experience in electronics packaging, GD&T, 3D modeling, and environmental qualifications.

Senior Principal Mixed Signal Design Engineer role at RTX focusing on the design, development, and characterization of Readout Integrated Circuits (ROICs) for advanced image sensor products. Responsibilities include collaborating with cross-functional teams on ASIC/ROIC development, evaluating process flows, designing mixed-signal ICs, and guiding engineering teams. Requires experience with IC design flows, semiconductor device physics, and full-custom CMOS IC design.

Software Engineer II role focused on the design, development, integration, and maintenance of Windows applications for test equipment supporting weapon system product development within RTX. Requires C#, C++ experience and a STEM Master's degree.

Software Engineer II role focused on developing avionics software for fixed-wing military platforms, specifically within Flight Management Solutions. Responsibilities include designing, implementing, and communicating software functionality within an agile team, coordinating with other engineering teams, and sharing knowledge. Requires a STEM degree and experience in Ada or C/C++.

Systems Engineer II role focused on developing and maintaining modeling tools for digital signal processing with complex time domain elements, analyzing performance, and incorporating radar system concepts. Requires experience with system modeling, algorithm development, and programming languages like MATLAB or Python. Security clearance is mandatory.

Electrical Engineer I role at RTX focusing on designing and testing RF, digital, power, and analog circuits, VHDL design, and troubleshooting hardware issues for defense systems like electronic warfare and radar. Requires a Bachelor's degree in engineering and experience with various electronic systems and PCB design. Security clearance is mandatory.

Senior Thermal Design Engineer responsible for detailed thermal analysis on products throughout their lifecycle, from initial design to production support. Tasks include hand calculations, detailed finite element analysis, test plan generation, data validation, and documentation.