Mechanical Engineering Intern - Summer 2026

Job Title: Mechanical Engineering Intern - Summer 2026

Job Category: Intern/Co-op

Time Type: Part time

Minimum Clearance Required to Start: None

Employee Type: Part-Time On-Call

Percentage of Travel Required: None

Type of Travel: None

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CACI is seeking talented, creative, and highly motivated Mechanical Engineering Interns to work at our research and technology lab in Los Gatos, CA. We are seeking the ‘best and brightest’ with a passion to solve tough challenges through innovation and the application of science and technology. We perform applied research and development in various aspects of optical communications and remote sensing systems. The internship will begin in May, last 12 weeks and you must be available to work 100% on-site.
 

The Opportunity:

You will assist with the packaging and integration of optical systems based around telescopes, gimbals, custom and COTS PCBs, passive, active, and free space components, and their supporting hardware. These systems are frequently integrated onto a variety of host platforms including satellites and aircraft, which requires design, analysis, simulation, and field measurements to ensure peak performance.

Responsibilities:

• Design the packaging for complex subsystems with optical, photonic, optoelectronic, electrical, and mechanical elements for R&D and production programs for U.S. government customers
• Produce build-to drawings and data packages
• Support the effort to transition the design into limited volume production (both on-site and at other locations), including development of assembly processes and writing of build procedures
• Utilize rapid prototyping (3D printing, laser/waterjet cutting) to produce both quick-turn models for demonstration and functional fixturing/tooling

Qualifications:

Required: 

• Currently pursuing an undergraduate or graduate degree in Mechanical Engineering or related field
• Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future
• Must be able to obtain and maintain applicable security clearance
• Familiarity with and interest in 3D modeling, CAD, and rapid prototyping tools such as 3D printers
• Strong written and verbal communications skills
• Self-motivated, detail-oriented, ability to work independently
• Strong interpersonal, problem solving, and organizational skills
• Perform other duties as required

Desired:

• Experience using SolidWorks design environment and PDM
• Experience with electronics packaging
• Experience with thermal and stress/strain modeling
• Familiarity with optical physics fundamentals
• Experience with Aerospace Engineering

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What You Can Expect:

 A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$45,900 - $91,900