Freelance Entry Level Mechanical Engineer Jobs in California

Date Posted:

2026-02-26

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:

DoD Clearance: Secret

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 today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. 

The Effector RF Design Department is seeking talented engineers with the skills and passion to develop complex Radio Frequency (RF) systems, subsystems and components, including antennas, RF circuit cards, and RF test-equipment. A successful candidate is one who functions in a multi-disciplined team, properly applies engineering tools and processes, and is a self-motivated problem solver with a positive attitude and willingness to learn. This is an entry-level Mechanical Engineer position for an individual with educational experience and professional interest in the application of technical mechanical standards, principles, concepts, and techniques. 

This position is located in Tucson, AZ and is an onsite role.

What You Will Do

• Collaborate in a multi-discipline team setting to solve complex engineering problems
• Create 3D CAD models and engineering drawings for RF products designs
• Develop prototype hardware designs and coordinating fabrication
• Perform hands on integration and test support for prototype hardware
• Hold design and drawing reviews with peers and subject matter experts

Qualifications You Must Have

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 2 years of prior relevant experience to include any combination of the following:
  • Experience performing design and / or analysis for the packaging of RF products (e.g. Circuit Card Assemblies, antennas, radomes, RF test equipment, harnesses and interconnects) throughout the product life cycle to include use of three dimensional (3D) Computer Aided Design (CAD) software
  • Experience with creation of Technical Data Packages (TDPs) using Geometric Dimensioning and Tolerancing (GD&T) for products

Qualifications We Prefer

• Master of Science (MS) in mechanical engineering or electrical engineering
• Experience with 3D CAD design (preferably Creo Parametric).
• Experience in antenna and/or electronics packaging.
• Experience with harness and interconnect design.
• Experience creating engineering drawings.
• Experience fabricating prototype designs.
• Familiarity with the application of Geometric Dimensioning & Tolerancing (GD&T).
• Experience working collaboratively in a multi-discipline team.
• Experience performing tolerance analysis.
• Self-motivated problem solver with a positive attitude and willingness to learn.
• Demonstrated ability to work effectively with coworkers from many communities and cultures.
• Demonstrated ability to work with colleagues who represent different types of work and conflict resolution styles.

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.

This position offers relocation based on candidate eligibility.

Learn More & Apply Now!

This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm

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 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.

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