Mechanical Engineer I (Onsite)

RTX (Raytheon); Fullerton (CA); On-site; USD 63,000 - 120,000; Full time

Job summary

RTX (Raytheon) in Fullerton, CA is seeking a mechanical engineer to develop radar subsystems using Creo Parametric or Solidworks. You will create sketches, diagrams, and 3-D models, supporting production and integration across teams.

The role requires a DoD Secret clearance and involves travel to suppliers and facilities (minimum 10%). Onsite work is expected at RTX facilities.

Qualifications

• Bachelor degree in Science, Technology, Engineering or Mathematics (STEM) major obtained by start date.
• Experience in mechanical engineering design knowledge.
• Experience in product lifecycle stages of a radar production program.
• Experience resolving technical challenges.

Responsibilities

• Develop mechanical subsystems with solid modeling and drawings using CAD tools (Creo/ Solidworks).
• Create 3-D design models and conceptual designs.
• Support production issues and engage resources to resolve them.
• Assist integration across Cross Product Teams in the Sentinel portfolio.

Skills

Mechanical design

Radar lifecycle

Problem solving

CAD tools

Education

Bachelor's degree in STEM

Tools

Creo Parametric

Solidworks

Job description

Date Posted: 2026-09-16

Country: United States of America

Location: US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675

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: DoD Clearance: Secret

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

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.

What You Will Do

Work within a team environment to develop innovative mechanical subsystems with solid modeling practices and drawing creation using CAD tools such as Creo Parametric, Solidworks, or equivalent. Develop preliminary sketches, diagrams, and other engineering information to generate 3-D design models and/or conceptual designs.

Exposure to solid modeling practices and drawing creation using CAD tools such as Creo Parametric, Solidworks, or equivalent.

Knowledge of fabrication processes, capabilities and limitations.

Support Mechanical Engineering solutions on production issues to functional leadership and engagement for resources (Subject Matter Experts, etc.) to resolve production issues rapidly and efficiently.

Support functional team leads for the integration efforts across the Cross Product Teams in the Sentinel portfolio to ensure successful system design, integration, production and program execution.

Provide Radar technical data package (TDP) support that includes design, development, manufacturing, and failure investigation solutions.

Basic understanding of tools / processes / approaches / instructions across product life cycles.

Participant in the Engineering changes process, peer review process, Engineering Documentation Standards (EDS) implementation, Configuration Control Board (CCB) participant as required by RTX process.

Supports program growth and technology insertion strategies working closely with the functional leaders, program technical leadership, and Program Office. Supports Mechanical leads for planning and execution of production programs, lateral product applications, and Engineering Changes.

Qualifications You Must Have

• Bachelor degree in Science, Technology, Engineering or Mathematics (STEM) major obtained by start date..
• Experience in mechanical engineering design knowledge.
• Experience in product lifecycle stages of a radar production program.
• Experience resolving technical challenges.
• Experience may be obtained through on-the-job experience, research, coursework, or projects.

Qualifications We Prefer

• Bachelor in Mechanical engineering, manufacturing engineering, or hardware system design related.
• Experience in manufacturing and tolerancing mechanisms.
• Experience in ANSI/ASME Y14.5 GD&T (Geometric Dimension and Tolerances).
• Strong CAD

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.

Position requires a minimum of 10% of travel to suppliers and production facilities which include domestic and international travel.

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 62,900 USD - 119,700 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.