> Markdown version of [/jobs/ext/4259947-principal-systems-and-integration-engineer-onsite](https://www.wearedevelopers.com/jobs/ext/4259947-principal-systems-and-integration-engineer-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Systems and Integration Engineer (Onsite) - **Company:** RTX - **Location:** Tucson, AZ, United States (Remote available) - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Data Analysis, Systems Engineering, Software Debugging, Systems Development Life Cycle, Requirements Management, Verification and Validation (Software), Systems Integration, Technical Data Management Systems, Test Data, Value Engineering, SC Clearance - **Published:** October 31, 2026 - **Apply:** https://www.careerbuilder.com/job-details/principal-systems-and-integration-engineer-onsite-tucson-az--f4f37b22-ed1e-46ac-976e-6d2fbfebe5ab ## About the Role System Integration (SI), Systems Engineering, United States Citizen, Security Clearance, RTX, Aerospace and Defense, Research & Development (R&D), Debugging Skills, Systems Engineering, Performance Analysis, * Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of prior engineering experience. * Experience in Systems Engineering and/or Systems Integration and Test * Experience coordinating across multiple disciplines, including Engineering, Finance, Supply Chain, and/or Quality. Qualifications We Prefer * Experience with Earn Value Management * Experience with Agile, Model-Based Systems Engineering (MBSE), and/or Digital Engineering * Experience creating integration and verification strategies. * Customer focus and collaboration skills * Experience with DOORS * Understanding of Systems Engineering Product Development Cycle * Experience working in an integration lab, test facility, or in the field supporting integration and/or verification. * Experience generating technical documentation such as trade studies, test plans, procedures or technical reports. * Experience with requirement development and decomposition. ## Description * Update, maintain, and improve requirements and requirements documentation for development and production efforts * Lead and/or Support Integration and Test Activities * Lead and/or Support Design and System Verification * Lead and/or Support system performance analysis * Model the system and the system development and production processes using Cameo * Create and present technical data for design reviews and in preparation for test events. * Troubleshoot and analyze hardware, software, and system issues through detailed data analysis and debugging, and participate in Failure Investigations * Conduct statistical and numerical analysis of test data to ensure optimal system performance and to verify requirements. * Lead and/or Support mission execution at various locations including local RTX facilities, test sites, vendor facilities, and customer locations, * Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. * This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm * This position is an onsite role - Tucson, AZ : https://careers.rtx.com/global/en/raytheon-tucson,-az-location * We Are RTX As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.