Principal Scientist

Date Posted:

2026-07-14

Country:

United States of America

Location:

US-AZ-TUCSON-M02 ~ 1151 E Hermans Rd ~ BLDG M02

Position Role Type:

Onsite

U.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 Type:

Secret - Current

Security Clearance Status:

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of todays mission and stay ahead of tomorrows threat. Our team solves tough, meaningful problems that create a safer, more secure world.

The Materials Engineering Department (NE-SW), which functions within the Mechanical Products Team, is looking for a propellant chemist with chemical analysis and non-metal materials application experience to join our team in Tucson Arizona. This fully on-site position will offer a qualified candidate the opportunity to engage our energetic suppliers in assessment of propellant properties, engage subject matter experts within Raytheon and the industry as well as conduct standard chemical laboratory analysis and perform hands-on-testing of materials including adhesives, polymers, tapes, composites, and various other production materials. The role will support all phases of product life cycle (including design, development and production) for a multitude of programs. Analyses will cover a wide range of topics from propellant chemistry, propellant processing, mechanical properties, failure analysis, material characterization, development, process improvement and obsolescence. Energetic work is expected to be approximately to time supporting energetic assessments with the remaining of the time supporting material characterization in our laboratory. Tasks will require careful attention to detail, fundamental scientific and material knowledge, project management skills, chemistry laboratory skills, testing of materials, and documentation of results. Collaboration with engineers, subject matter experts, and suppliers is required. Candidate must be able to manage and coordinate a wide variety of simultaneous tasks within set schedule requirements.

What You Will Do

• Support Programs in assessing supplier data from energetic suppliers. Trouble shoot problems and provide solutions to problems at suppliers. This will require travel at times to energetic suppliers to support root cause corrective action.

• Assessing materials based on conformance to specifications.

• Conducting hands on testing of materials using a variety of laboratory techniques and instrumentation at our Tucson Facility

• Conducting standard chemical analysis laboratory testing using a verity of instrumentation including: FTIR, SEM-EDS, GC-MS, LC, NMR, TGA, DSC, DMA

• Method and test plan development

• Leading various characterization and design projects

• Following standard written protocols and utilizing a variety of databases

• Teaming with subject matter experts and management to understand material usage.

• Consistent engagement with engineers, subject matter experts and management to provide project status updates

• Documentation and communication of results and findings

The Principal Propellant Chemist job is in Tucson, AZ and the position is onsite.

Qualifications You Must Have

• Typically requires A University Degree or equivalent experience and minimum 8 years prior relevant experience, or An Advanced Degree in a related field and minimum 5 years experience

• Experience in using propellant mixers and standard laboratory equipment (i.e. ovens, thermometers, calipers, and microscope)

• Experience in Instrumental Analysis techniques (i.e. FTIR, UV-Vis, DSC, DMA, TMA, TGA, Rheology, GCMS, NMR, ICP-OES, HPLC, GPC, SEM, EDS)

? Qualifications We Prefer

• Bachelor of Science degree in Chemistry

• Equivalent MOS: 89D (US Army); 2171 (US Marine Corps), 4B0X1 (US Air Force)

• Demonstrated ability to apply analytical chemistry principles to industry applications.

• Specific majors: ACS certified Chemistry degree with strong analytical/instrumentation skills

• Understanding of Polymer Chemistry

• Understanding of Systems Engineering

• Understanding of material safety datasheets and Military/Industrial Specifications

• Knowledge of data analysis, modeling and simulation, statistics, and various computational techniques for complex multi-variable problems.

• Strong communication, interpersonal, planning and time management skills

• Demonstrated strong written and verbal scientific communication skills

• Demonstrated ability to lead and complete multi-disciplined scientific based projects including failure analysis investigations

• Ability to write concise technical reports summarizing analyses

• MS Office (Excel, Word, PowerPoint)

What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

• 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.

#LI-SM4

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 107,500 USD - 204,500 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 candidates 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 companys 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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