Senior Mechanical Systems Engineer - Design, Analysis, and Integration (Remote)

Date Posted:

2026-03-30

Country:

United States of America

Location:

US-IL-REMOTE

Position Role Type:

Remote

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

Join Collins Aerospace as a Senior Mechanical Systems Engineer and play a key role in designing and delivering complex mechanical solutions that power critical aerospace, defense, and maritime systems. In this highly integrated role, you won’t just focus on one piece of the puzzle—you’ll operate across the full engineering lifecycle, translating requirements into real-world hardware through a combination of design, analysis, and system-level thinking. From early concept development through production and sustainment, your work will directly influence the performance, reliability, and success of mission-critical technologies.

This is an opportunity to step into a hands-on environment with broad technical scope, where you’ll collaborate across engineering disciplines to solve complex challenges. Whether you’re developing electro-mechanical assemblies, performing multi-physics analysis, or shaping system architecture and packaging, you’ll be at the center of turning ideas into executable, high-impact solutions. If you’re someone who thrives in bridging design and analysis, enjoys working in evolving problem spaces, and wants to contribute to advanced systems that operate in demanding environments, this role offers both the scope and visibility to make a meaningful impact.

What You Will Do:

• Execute integrated mechanical design and analysis activities, ensuring alignment across functional and performance requirements, physical architecture and packaging constraints, and manufacturability, reliability, and lifecycle considerations
• Develop and mature concepts, layouts, and detailed designs for mechanical systems and components, including rotating machinery, actuation systems, mechanical control elements, electro-mechanical assemblies, and electronics packaging, with exposure to maritime and undersea systems as applicable
• Perform and support multi-disciplinary analysis (structural, thermal, vibration, fluid, and system-level modeling), including generating loads, defining boundary conditions, building models, and correlating analytical results with test data and field performance
• Translate system requirements into physical architectures and executable design solutions, including space claim definition, system layout, interface definition, and cross-domain integration across mechanical and electrical systems, supported by early-stage trade studies and concept evaluations
• Support early-phase engineering efforts through concept definition, feasibility assessments, development of preliminary models and layouts, and providing engineering inputs to scope, cost, and schedule planning
• Develop and maintain complete technical data packages, including 3D models, drawings, specifications, and analysis artifacts, ensuring accuracy, completeness, and configuration control
• Define and execute development, qualification, and acceptance testing, ensuring alignment with system requirements and validation of analytical predictions
• Implement design changes across the product lifecycle while maintaining configuration control, traceability, and alignment with program objectives
• Support supplier engagement through technical coordination, component qualification, and resolution of design, manufacturing, or performance-related issues
• Participate in or lead root cause and corrective action investigations (RRCCA), integrating insights from design, analysis, manufacturing, and field data to drive resolution and continuous improvement

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
• Demonstrated experience in two or more of the following areas: mechanical design across the full product lifecycle (concept through production); multi-disciplinary engineering analysis (FEA, thermal, fluid, or system-level modeling); and system integration and packaging of electro-mechanical systems
• Prior experience using NX or a comparable CAD tool (minimum 3 years)
• Prior experience using PLM systems such as Teamcenter or equivalent (minimum 3 years)
• Experience utilizing engineering analysis tools such as ANSYS, Simulink, Mathcad, or equivalent

Qualifications We Prefer:

• Experience in defense, aerospace, or maritime/undersea systems
• Experience performing trade studies, concept evaluations, or early-phase engineering development
• Experience integrating design and analysis into cohesive system solutions
• Familiarity with AS9100, configuration management, and design release processes
• Master’s degree in Mechanical Engineering or related field

What We Offer:

• 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!

Mission Systems: 

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. 

*Please ensure the role type (defined below) is appropriate for your needs before applying to this role.

Remote: Employees who are working in Remote roles will work primarily offsite (from home).  An employee may be expected to travel to the site location as needed. 

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.

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.

The salary range for this role is 86,800 USD - 165,200 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.

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