Sr.Principal Engineer, Systems Engineering (Onsite)

globalhr; East Hartford (CT); On-site; USD 132,000 - 252,000; Full time

Benefits offered by this job

Medical benefits

401(k) match

Paid time off

Job summary

RTX is seeking a Senior Principal Systems Engineer with Model Based Systems Engineering (MBSE) experience to support next generation propulsion programs. The role leads the development and maturation of system models while mentoring teams and driving MBSE improvements across programs.

Based in the East Hartford area, this onsite position requires the ability to obtain and maintain a U.S. government security clearance and offers opportunities to shape digital engineering capabilities for military

Qualifications

• Bachelor’s degree in engineering and 10+ years of relevant experience.
• Advanced degree with 7+ years of relevant experience.
• Experience leading small cross-functional engineering teams.
• Experience in systems engineering roles, or familiarity with systems engineering methods.
• Experience using a SysML tool, such as IBM Rhapsody®, Cameo/Magic Draw®, or equivalent.
• Ability to obtain and maintain a U.S. government issued security clearance.

Responsibilities

• Lead the development of Systems Engineering Models as a subject matter expert to perform requirements analysis, define architectures and interfaces, verification planning, and system integration.
• Coordinate with leadership, team members, and other teams in a highly matrixed organization.
• Participate in customer and internal gate reviews throughout the product lifecycle.
• Coordinate extended team model development efforts and enforce engineering best practices and compliance with EDSI standard work.

Skills

MBSE

SysML

Security clearance

Leadership

Systems engineering

Cross-functional teams

Education

Bachelor's in engineering

Advanced degree

Tools

IBM Rhapsody

Cameo/Magic Draw

Job description

Date Posted:

2026-09-17

Country:

United States of America

Location:

US-CT-EAST HARTFORD-ETC ~ 400 Main St ~ BLDG ETC

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

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.

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join us and help shape the future of aerospace and defense.

What You Will Do:

Pratt and Whitney Engine Design and Systems Integration (EDSI) is seeking a Senior Principal Systems Engineer, with Model Based Systems Engineering (MBSE) experience, to support next generation propulsion programs.

The candidate will be responsible for leading the development, integration, and maturation of system models for one or more military engine programs. Candidate will also be involved in Pratt & Whitney’s digital transformation initiatives to serve as a technical leader, mentor, and strategic contributor driving MBSE process improvements in systems engineering.

This position provides the opportunity to influence and develop cutting-edge digital engineering capabilities for military propulsion programs. Candidate responsibilities will be commensurate with their background, experience, and education.

• Lead the development of Systems Engineering Models as a subject matter expert in order to perform systems engineering tasks including: Requirements analysis, defining logical and physical architectures, defining interfaces, verification planning, trade studies, system integration
• Coordinate with leadership, team members, and other teams in a highly matrixed organization
• Participate in customer and/or internal gate reviews throughout the product lifecycle
• Coordinate extended team model development efforts and enforce engineering best practices and compliance with EDSI standard work

Qualifications You Must Have:

• Bachelor’s degree in engineering and 10+ years of relevant experience, or an Advanced Degree with 7+ years of relevant experience
• Experience leading small cross functional engineering teams
• Experience in systems engineering roles, or familiarity with systems engineering methods
• Experience using a SysML tool, such as IBM Rhapsody ®, Cameo/Magic Draw ®, or equivalent
• The ability to obtain and maintain a U.S. government issued security clearance is required.

Qualifications We Prefer:

• Background in propulsion, gas turbine systems, or mission‑critical aerospace applications.
• Proficiency in Cameo Systems Modeler or Cameo Enterprise Architect
• Knowledge of MBSE best practices
• Certification in systems engineering and/or SysML (e.g., INCOSE CSEP, OCSMP)
• Proficiency with Agile development methodologies and tools (e.g., Jira, Confluence)
• Experience writing proposals, generating basis of estimatesActive Secret clearance

In addition to transforming the future of flight, we are also transforming how and where we work.We’veintroduced role types to help you understand how you willoperatein our blended work environment. This role is:

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

Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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 132,400 USD - 251,600 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.