Seeking a Senior Manufacturing Engineer in Fairfield, CA to develop and optimize manufacturing processes, improve productivity, reduce costs, and ensure safety and quality. The role involves hands-on floor support, designing tools and fixtures using CAD, conducting capability and tolerance analyses, and troubleshooting operational issues. Candidates should have a STEM degree, 5+ years of experience, and knowledge of aerospace manufacturing standards. Preferred qualifications include experience with regulated aerospace environments, NDT methods, and leading engineering teams. Benefits include comprehensive health coverage, retirement plans, tuition assistance, and wellness programs. This onsite position offers opportunities to contribute to advanced aerospace production and innovation. U.S. citizenship is required; relocation assistance is available. Applications are open for approximately 40 days. RTX is an Equal Opportunity Employer.