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RTX

Manufactures jet engines, avionics, missiles

Principal Composites Engineer

Full-TimeUpdated on 10/11/2026
$107.5k - $204.5k
Expert
Bachelor's, Master's
East Hartford, CT, USA
In PersonApproximately 10% travel is anticipated; relocation eligibility is offered.
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A bachelor's degree in Engineering and at least 8 years of relevant experience in Defense/Aerospace or related industries, or an advanced degree in a related field and at least 5 years of experience.
  • The ability to obtain and maintain a U.S. government-issued security clearance.
  • U.S. citizenship is required.
  • Preferred: Bachelor's degree in Mechanical or Aerospace Engineering.
  • Preferred: Advanced degree in Engineering.
  • Preferred: Active U.S. security clearance.
  • Preferred: CAD software experience, such as NX, FiberSIM, or TeamCenter.
  • Preferred: CAE software experience, such as Altair HyperMesh, Ansys MAPDL, Ansys Workbench/ACP, Abaqus, Nastran, Patran, or NX Simcenter.
  • Preferred: Familiarity with non-destructive testing methods for composites.
  • Preferred: Mechanical design experience, including bolted or mechanically fastened joints, geometric dimensioning and tolerancing, tolerance stack-up methodology, beam/plate theory, classical laminate theory, and general hand calculations.
  • Preferred: Hands-on composites manufacturing experience using hand-layup, autoclave, compression molding, RTM, VARTM, and/or SQRTM techniques.
  • Preferred: Knowledge of composite technology, including composite design, analysis, manufacturing, and testing/characterization processes.
  • Preferred: Familiarity with advanced textile design and manufacturing.
  • Preferred: Experience with Agile and/or Waterfall project management frameworks.
Responsibilities
  • Function as a design/structures engineer for composite components on an Integrated Product Team and participate in projects to develop and implement designs that meet advanced engine-specific requirements.
  • Provide design and/or structural analysis support through conceptual, preliminary, and detailed design phases, including validation, certification, manufacturing, and operational service.
  • Select materials, determine laminate architecture, generate detail- and assembly-level CAD models, and design sub-element components for empirical testing.
  • Perform finite element analysis of homogeneous solid, layered shell, and layered solid (ply-by-ply) models to ensure compliance with engine hardware requirements and to correlate and validate structural testing.
  • Assist with manufacturing process development at suppliers and ensure component designs are manufacturable; document and present results to management and external customers.
  • Support Military Engines, advanced engine designs, and the installed base of engines, and apply CORE (Customer Oriented Results & Excellence) tools within the Composites Organization.
  • Mentor and coach developing engineers on the team.
  • Travel approximately 10% of the time.
Desired Qualifications
  • Demonstrated strong problem-solving, teamwork, communication, and leadership skills.
  • A track record of delivering positive results in a multi-functional team environment.
  • The ability to communicate effectively with customers, co-workers, suppliers, and management across varying disciplines.

About the company

RTX produces jet engines, cockpit electronics, and avionics through Pratt & Whitney and Collins Aerospace, and develops defense systems and missiles via Raytheon. Pratt & Whitney engines provide propulsion for commercial and military aircraft, while Collins Aerospace supplies flight controls, navigation, and integrated cockpit systems, and Raytheon offers missiles, radar, and sensing technologies. The company differentiates itself by offering a single, integrated portfolio that spans both commercial aviation and national defense under one corporate umbrella, drawing on the legacy of Raytheon and UTC. Its goal is to help customers fly more efficiently and protect nations by advancing propulsion, electronics, and defense technologies for civilian air travel and security needs.

Company Size

10,001+

Company Stage

IPO

Headquarters

Arlington, Virginia

Founded

2022

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Simplify's Take

What believers are saying

  • RTX raised 2026 guidance after Q2 sales reached $24.7 billion and EPS hit $1.89.
  • Raytheon's 2026 framework agreements target annual output above 1,000 Tomahawks and 500 SM-6s.
  • GTF Advantage certification and Airbus deliveries extend Pratt & Whitney's recovery into 2026.

What critics are saying

  • Pratt & Whitney's GTF powder-metal issue still drives inspections, grounded jets, and lawsuits.
  • SEC subpoenas and DOJ agreements keep Raytheon's legacy conduct under active scrutiny.
  • Persistent GTF failures or fixed-price overruns can erase cash flow and damage airline trust.

What makes RTX unique

  • RTX pairs $289 billion backlog with balanced defense and commercial aerospace exposure.
  • Raytheon wins $24.4 billion SM-6 and $22.9 billion Tomahawk production contracts.
  • Pratt & Whitney and Collins feed recurring aftermarket revenue across Airbus and military fleets.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Flexible Work Hours

Remote Work Options

Paid Vacation

Paid Sick Leave

Paid Holidays

Parental Leave

Family Planning Benefits

Fertility Treatment Support

Adoption Assistance

Employee Assistance Plan

Wellness Program

Gym Membership

Tuition Reimbursement

Student Loan Assistance

Home Office Stipend

Phone/Internet Stipend

Short-term Disability

Long-term Disability

Employee Scholar Program

Three weeks of vacation for newly hired employees

Generous 401(k) plan that includes employer matching funds

Ovia Health, fertility, and family planning

Bright Horizons, child and elder care services

Doctor on Demand, virtual doctor visits

Teladoc Medical Experts, second opinion program

Growth & Insights and Company News

Headcount

6 month growth

↑ 5%

1 year growth

↑ 5%

2 year growth

↑ 5%
PR Newswire
Oct 8th, 2026
RTX's Raytheon secures $6.3B contract for SM-3 IB missile interceptors

Raytheon, an RTX business, has secured a contract worth up to $6.3 billion for the production and sustainment of Standard Missile-3 Block IB interceptors. The five-year agreement, with two optional additional years, forms part of recent landmark deals between Raytheon and the Department of War. The contract supports urgent replenishment of missile defense inventory that has been used in combat. Production will primarily take place at Raytheon facilities in Tucson, Arizona, and Huntsville, Alabama. SM-3 IB is a ship- and land-based missile defense interceptor designed to defeat short- to intermediate-range ballistic missiles. It was first deployed in combat in 2024 and remains integral to the US Navy's extended-range integrated air and missile defense systems.

PR Newswire
Oct 1st, 2026
RTX's Raytheon secures $24.4B contract for SM-6 interceptors

Raytheon, an RTX business, has secured a five-year contract worth up to $24.4 billion for Standard Missile-6 (SM-6) interceptors. The contract includes two additional option years. The agreement ensures a consistent supply of SM-6s for the US Navy. The missile can conduct offensive strikes and missile defense missions. Raytheon President Phil Jasper said the company is focused on meeting demand through operational investments and facility improvements. The firm has expanded its workforce, strengthened partnerships across the defence industrial base, and automated production to boost output. SM-6 is the only combat-proven weapon capable of performing anti-air warfare, anti-surface warfare, and ballistic missile defence. It can be fired from various Navy ship-based platforms and land-based launchers.

PR Newswire
Sep 24th, 2026
United Airlines receives first GTF Advantage-powered A321XLR from RTX's Pratt & Whitney

United Airlines has received its first Airbus A321XLR aircraft powered by Pratt & Whitney's GTF Advantage engines, marking the inaugural delivery of this enhanced engine variant. The GTF Advantage offers up to twice the operational lifespan of current GTF engines and provides 4-8% more takeoff thrust, enabling extended range capabilities. The engine features an advanced hot section design and remains fully compatible with existing GTF models, simplifying fleet operations. Pratt & Whitney, an RTX business, plans to transition its entire PW1100G-JM production line to the Advantage specification by 2028. Current GTF operators will be able to access 90-95% of the Advantage's durability improvements through a Hot Section Plus upgrade option, available from early next year during scheduled maintenance visits.

PR Newswire
Sep 4th, 2026
Pratt & Whitney invests $25M to expand Poland manufacturing, adding 120 jobs

RTX's Pratt & Whitney is investing $25 million to expand its manufacturing facility in Niepołomice, Poland. The site produces complex tubular assemblies for commercial and military engines. The expansion, supported by the Polish government through the Polish Investment Zone Programme, will add more than 120 jobs when it becomes operational in 2028. The facility currently manufactures precision components for multiple engine types, including the GTF engine for commercial aircraft and the F135 for F-35 fighter aircraft. This investment is part of Pratt & Whitney's $125 million commitment to Polish facilities this year, including a $100 million investment in Rzeszow. Poland represents RTX's largest investment base outside the United States, with more than 9,500 employees across its businesses in-country.

Yahoo Finance
Aug 30th, 2026
RTX's $289B backlog: 60% commercial aerospace strengthens defense business flexibility

RTX's $289 billion backlog splits 60% commercial aerospace and 40% defence, a combination that benefits both divisions. The commercial segment's strong profitability allows the defence business to avoid risky fixed-price development contracts that have troubled competitors like Boeing and Lockheed Martin. This flexibility enabled RTX to terminate an unfavourable classified programme in 2024, taking a $575 million charge rather than pursuing losses. CEO Chris Calio said the contract fell outside the company's core competencies and predated RTX's formation. The arrangement works both ways. Defence earnings supported RTX through a costly powder metal coating issue affecting its geared turbofan engine. The structure allows RTX to focus on established defence solutions like Patriot missiles whilst maintaining investment in commercial aerospace during downturns.