Principal Mechanical Project Engineer (Onsite)

Raytheon Technologies • Rockford, IL

120d • $101,000 - $203,000

About The Position

At Collins Aerospace, we're redefining what's possible in aerospace and defense, and we're looking for a Principal Mechanical Project Engineer to help drive that mission forward. In this role, you'll lead the design, test, and validation of advanced systems and components that ensure the safety, reliability, and performance of solutions used around the globe. You'll quickly grow into a technical expert in mechanical design and test equipment development while collaborating with cross-functional teams in software, electrical, and systems engineering. Your work will directly support programs that keep pilots safe, enable secure communication, and power the next generation of aerospace technology. As a Principal Mechanical Project Engineer, you'll take on complex projects that span the full product lifecycle—from requirements definition and integration to sustainment and modernization efforts that keep our technology mission-ready. Whether developing test plans, troubleshooting complex mechanisms, or shaping proposals that drive future business, you'll be positioned to make a visible impact. At Collins, we thrive on solving tough challenges together, empowering our engineers to grow, lead, and push the boundaries of innovation in aerospace.

Requirements

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) experience and minimum 8 years of prior relevant experience, or an Advanced Degree in a related field with 5 years prior experience
• Understanding of mechanical systems, components, their assembly and maintenance
• U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract

Nice To Haves

• Practical knowledge of RTX projects, programs or systems with the ability to make enhancements and leverage in daily work
• Experience with configuring, integrating, troubleshooting complex mechanisms
• Experience with Agile process management
• Experience with Test Driven Development
• Experience with planning and reporting technical and programmatic status
• Desire to work and thrive in a team environment and willingness to learn and expand experiences

Responsibilities

• Lead test and validation activities for components and complex mechanical systems to ensure compliance with performance, reliability, and safety standards
• Support sustainment and modernization efforts across the product lifecycle, including requirements definition, hardware/software integration, validation, deployment, and failure investigations
• Contribute to proposals for test equipment by preparing cost estimates, schedules, and resource requirements
• Collaborate across disciplines to implement solutions that may include software, firmware, and hardware elements
• Develop and execute test plans, procedures, and protocols to validate system functionality and performance
• Partner with program teams and engineers to ensure seamless product delivery with minimal impact to operations
• Communicate progress, issues, and status updates clearly with both internal teams and external stakeholders
• Perform integration, testing, and documentation to ensure proper operation within factory and operational platforms
• Follow established engineering standards and processes, including peer reviews, test environment management, and continuous quality improvements
• Track and report task execution status against planned activities to support program performance metrics

Benefits

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Industry: Computer and Electronic Product Manufacturing
• Education Level: Bachelor's degree