Thermal Analyst II (Onsite)

RTX (Raytheon); Sudbury (MA); On-site; USD 69,000 - 131,000; Full time

Benefits offered by this job

Relocation Eligibility

Benefits package

Job summary

RTX is seeking a Thermal Analyst II in the Marlborough, MA area to perform comprehensive thermal analyses across the product lifecycle. Responsibilities span hand calculations, detailed FEM work, test planning, data reduction, and model correlation to support government and internal customers.

The role requires a STEM master's degree and experience with FloTHERM, PATRAN, Thermal Desktop/SINDA or ANSYS. Onsite work with relocation eligibility and a strong emphasis on peer reviews and

Qualifications

• Masters degree in Science, Technology, Engineering or Mathematics obtained by the start date.
• Experience in thermal analysis using FloTHERM, PATRAN, Thermal Desktop/SINDA or ANSYS or equivalent.

Responsibilities

• Perform hand calculations to scope higher detail analysis models.
• Conduct detailed thermal analyses to address program challenges.
• Generate test plans to validate analyses and verify hardware compliance.
• Analyze test data to validate and correlate models.
• Review work with peers for technical accuracy.

Skills

Thermal analysis

Finite element methods

Independent worker

Education

Master's degree in STEM

Tools

FloTHERM

PATRAN

Thermal Desktop/SINDA

ANSYS

Job description

Date Posted:2026-09-21

Country:United States of America

Location:US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1

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

What You Will Do

The Thermal Analyst II is responsible for detailed thermal analysis on products throughout their lifecycle from initial design trade studies and proposals through qualification testing to enduring production support. The analyses will cover a wide range of difficult problems, requiring solutions that are imaginative, thorough, practicable, and consistent with organization objectives. The analysis tasks will span the spectrum from classical hand analyses to detailed analyses requiring the use of finite element analysis software. The Thermal Analyst II will be held accountable for completing his/her work within the agreed upon cost and schedule. Additionally, the selected candidate will be expected to present their work for peer reviews and to be a peer reviewer for other engineers' work. Finally, the engineer is expected to plan and support tests, perform data reduction and engage in thermal model correlation.

Key Responsibilities

• Perform Hand Calculations to determine scope of higher detail analysis models
• Perform detailed thermal analyses to solve various program thermal challenges
• Generate test plans required to validate analyses and verify hardware compliance to customer requirements
• Analyze test data to validate and correlate models
• Work with experienced analysts on problems of moderate complexity to provide the answers needed under program cost and schedule constraints
• Review your work with peers to ensure technical accuracy
• Present results to internal, external, and government customers
• Generate detailed documentation of work and archive for reference

Qualifications You Must Have

• Masters degree in Science, Technology, Engineering or Mathematics (STEM) obtained by the start date.
• Experience in thermal analysis with any of the following tools: FloTHERM, PATRAN, Thermal Desktop/SINDA or ANSYS or equivalent
• Experience in mechanical principles to solve classical thermal analysis solutions both inside and outside of finite element tools and an ability to work independently and manage multiple priorities

Qualifications We Prefer

• Experience with solid modeling CAD tool such as CREO or equivalent
• Experience in Electronics Cooling and Aerodynamic Heating Analyses
• Experience presenting to external customers

What We Offer

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

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.

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 68,900 USD - 131,100 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