Principal Mechanical Manufacturing Engineer

Date Posted: 2026-07-16 Country: United States of America Location: US-CT-WINDSOR LOCKS-B1A ~ 1 Hamilton Rd ~ BLDG 1A Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Security Clearance Type: None/Not Required Security Clearance Status: Not Required At RTX, the world 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.  Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.  What You Will Do:   Determines mechanical manufacturing methods for hardware and ensures the required manufacturing processes are available. Creates manufacturing assembly documentation and conceptual tooling, and provides technical assistance to assemble high-quality, highly engineered hardware for life support and thermal control applications, both internally and for external suppliers. Supports failure investigations by determining root causes, implementing corrective actions, and dispositioning nonconforming hardware to drive continuous improvement initiatives. Develops and sequences larger, more complex manufacturing operations and installations, and specifies procedures for tool and equipment fabrication, assembly, disassembly, repair, and other manufacturing processes to ensure efficiency and optimize performance. Ensures manufacturing processes and procedures comply with all applicable Environmental, Health, and Safety (EH&S) and quality requirements. Identifies opportunities for improvement and implements changes, as needed, to enhance products or reduce costs by applying knowledge of fabrication processes, tooling, production equipment, assembly methods, quality control standards, product design, materials, and components to optimize productivity and resource utilization. Performs cost estimates, works to established schedules, and writes manufacturing procedures and policies. Reviews engineering drawings and concepts, resolves producibility concerns, and provides recommendations for the acquisition and implementation of new technologies, equipment, and materials. Collaborates effectively within an integrated product development and design environment. Presents technical and operational topics to senior management and participates in and implements continuous improvement initiatives, including ACE, Process Certification, Manufacturing Process Reviews, Lean Manufacturing, and EH&S projects. Demonstrates a positive attitude and communicates effectively with integrated product development teams, staff, and management.   Qualifications You Must Have:   Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations Qualifications We Prefer:   Familiarity with a modeling and/or design package such as Creo.  Knowledge of Lean Manufacturing, machining concepts and special processing such as welding and brazing.  Knowledge of Continuous improvement methods and demonstrated use of their tools, such as Shainen Red X, Taguchi Design of Experiment, Dmaic, Ishikawa and Fault Tree Analysis.  Experience with a MRP (Manufacturing Resource Planning) system.  Previous experience in Life Support and/or Thermal Control hardware is highly desirable.  What We Offer:   Some of our competitive benefits package includes:     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    And more!  Learn More & Apply Now!    Operations, Supply Chain and EH&S:   The next chapter of our future as an aerospace company is here, and we are excited about what this means for our employees and customers! Get onboard the Collins Aerospace Operations team and play a part in managing our innovative products from inception to delivery. The Operations team continues to grow and aims to strengthen the connection of Manufacturing Operations, Supply Chain and Environment, Health & Safety (EH&S) across Collins Aerospace. In this dynamic environment, you will have the opportunity to network across our businesses and functions, all while improving the productivity, quality and efficiency of our operations worldwide.   Collins Aerospace, a RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, compreh