Full Time Modelica Jobs (NOW HIRING)

Date Posted:

2026-06-30

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:

This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are considered U.S. persons. For a complete definition of "U.S. Person" go here. https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops, and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX.

At RTX, the world's 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.

As an entry level Engineer 1, you will focus on systems engineering analysis including architecting, sizing, developing advanced models, analyzing performance of 0d/1d thermal fluid systems, and defining system test plans.

The entry level Engineer 1 position is a self-directed role with support from management and advisory engineers, who are at the ready, as required. This role offers opportunities to work with multiple cross functional team members, as well as management and customers.

This role is onsite, in Windsor Locks, CT. This role may be eligible for relocation.

What You Will Do:

• You will architect, size, and design thermal fluid systems and the associated controls for heating, cooling, and ventilation of aircrafts.
• You will formulate conceptual design of thermal fluid products or systems developing lower-level requirements to meet customer requirements and business objectives, with emphasis on product cost and reliability.
• You will develop advanced mathematical models or other methods of computer analysis to develop, evaluate, or modify design, according to customer engineering requirements.
• You will perform system level analyses of thermal fluid systems and prepare technical reports of findings and recommendations.
• You will create and implement common procedures and standard work across the organization.
• You will use Model-Based System Engineering methodology and tools.
• You will collaborate with customers to establish specifications, perform analysis, and plan performance testing in the system pneumatic labs, customer labs as well as the aircraft.
• You will analyze test results for consistency with performance predictions and compliance to system requirements.
• You will provide timely and effective communication to management, suppliers, the engineering team, and customers.

What You Will Learn:

• You will learn the full experience of systems engineering activities from initial requirements capture all the way to supporting fielded products
• You will learn thermal management system architectures and solutions for aerospace system applications
• You will learn how to perform system analysis using model-based design using system engineering tools and best practices

Qualifications You Must Have:

• Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) obtained prior to start.
• U.S. Person (U.S. citizen, permanent resident, or granted refugee or asylee status) as defined here: https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62.
• Demonstrated proficiency with MATLAB and Python experience preferred.
• Experience may be obtained through on-the-job experience, research, coursework, or projects.

Qualifications We Prefer:

• Bachelor's in engineering discipline (mechanical, aero or electrical) and minor in computer science is preferred.
• Experience with pneumatic and motor driven turbo machinery design, vapor cycle design, or heat exchanger design.
• Experience with Model Based System Engineering.
• Demonstrated proficiency with Matworks MATLAB/Simulink, Modelica & Modelon Impact.
• Python programming experience preferred.
• Experience presenting to management and customers.
• Experience with task detail planning and project execution.

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 illnessinsurance, 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 and Apply Now!

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, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio and expertise to solve customers' toughest challenges and to meet the demands of a rapidly evolving global market.

WE ARE REDEFINING AEROSPACE.

• Please consider the following role type definition as you apply for this role.

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

Regardless of your role type, collaboration and innovation are critical to our business and all employees will have access to digital tools so they can work with colleagues around the world - and access to Collins sites when their work requires in-person meetings.

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 57,200 USD - 108,800 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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