Date Posted:2025-08-28Country:United States of AmericaLocation:01: Building 01 Windsor Locks One Hamilton Road, Windsor Locks, CT, 06096 USAPosition Role Type:HybridU.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​Security Clearance: DoD Clearance: SecretWe are seeking a Mechanical Systems Engineer II to join our team in Windsor Locks, CT. In this role, you will be responsible for designing and developing functional system architecture for engine control systems. You will work closely with an integrated product team to define and manage system components using physics-based models, while ensuring system designs meet customer requirements. This role also involves developing detailed functional schematics, layouts, and component details, conducting design verification and certification tests, and post-processing test results. If you have a strong foundation in mechanical systems engineering and enjoy working in a collaborative team environment, this is an excellent opportunity to contribute to cutting-edge engine control systems. What You Will Do <ul><li>Collaborate in a team environment to design functional system architecture, defining major components and subsystems using physics-based models. </li></ul><ul><li>Develop detailed functional schematics, concept layouts, sketches, and preliminary component details. </li></ul><ul><li>Develop, manage, and communicate system requirements to the integrated product team. </li></ul><ul><li>Investigate design factors and conduct trade studies to identify optimal solutions to meet both internal and external customer requirements. </li></ul><ul><li>Support testing for systems, subsystems, and components. </li></ul><ul><li>Support design verification and certification tests, post-process and analyze test results in relation to design specifications and objectives. </li></ul>Qualifications You Must Have <ul><li>Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 2 years of prior relevant experience or an Advanced Degree in a related field or in absence of a degree, 6 years of relevant experience </li></ul>Qualifications We Prefer  <ul><li>A bachelors degree in mechanical, systems, or aerospace engineering is preferred. </li></ul><ul><li>Strong analytical and problem-solving skills. </li></ul><ul><li>Coding (VBA, Python, or similar) experience. </li></ul><ul><li>Strong communication skills. </li></ul><ul><li>Experience in the aerospace industry. </li></ul>What We Offer Benefits  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!  May be eligible for relocation. Learn More &amp; Apply Now! We make modern flight possible for millions of travelers and our military every second.  Our major product lines are on-board virtually every aircraft flying. Be it keeping passengers safe with our emergency power generation systems or creating a positive in flight experience through reliable cabin pressure controls and quieter engines, Power &amp; Controls focuses on delivering a best-in-class experience to our customers. We hire the top people in the industry. Their ideas drive our performance, and their integrity keeps our customers happy. Join us as we take flight! *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. Hybrid: Employees who are working in Hybrid roles will work regularly both onsite and offsite. Ratio of time working onsite will be determined in partnership with your leader. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.  Apply now and be part of the team that’s redefining aerospace, every day. The salary range for this role is 66,000 USD - 130,000 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms