Mechanical Engineering Intern (Fall 2026)

Posted Yesterday
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Tustin, CA, USA
In-Office
20-20 Hourly
Internship
Software • Design
The Role
Support mechanical engineering teams on AEC projects by assisting with CAD modeling (AutoCAD/Revit), performing basic engineering analyses, collaborating with project teams, and completing site or office tasks as required. Gain practical experience and mentorship while contributing to project deliverables.
Summary Generated by Built In

Engineering Internship

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future.

Building for the long-term means that all of our team members can expect to work on amazing projects with a people-first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high-impact career—and they’ll receive great total rewards along the way.

About Us:

 Founded in 1975, Salas O’Brien is an employee-owned engineering and professional services firm focused on achieving impact for our clients, our team, and the world. We know that tomorrow’s requirements are today’s opportunities, and we are here to design lasting solutions for pressing challenges.

We work across a variety of industries providing integrated engineering and consulting services. Our specialized experience includes design for data centers, healthcare, science and technology, high-rise buildings, clean energy, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more.

Our technical expertise is paired with an exceptional team of business development, human resources, finance and accounting, information technology, and marketing professionals, all of whom play a key role in bringing our commitments to life every day.

Job Summary: Joining our team as a Mechanical Engineering Intern offers a unique opportunity to gain practical experience, expand your skills, and make meaningful contributions to impactful projects within Salas O’Brien. We are committed to providing a supportive and enriching environment where interns can thrive and develop their talents. If you are ready to embark on a rewarding journey and learn from industry experts, we encourage you to apply and become part of our dynamic team.

Qualifications:

  • Currently enrolled in a Bachelor's or Master's degree program in Engineering or a related field.
  • Genuine passion for the AEC industry and eagerness to learn and contribute to meaningful projects.
  • Strong communication skills and the ability to work effectively in a collaborative team environment.
  • Experience in CAD software (e.g., AutoCAD, Revit) and familiarity with engineering analysis tools is advantageous.
  • Ability to adapt to changing priorities and work tasks, with a willingness to perform duties onsite or at project locations as required.
  • Prior internship or co-op experience in the AEC industry is a plus but not required.

Location: Tustin, CA            

Travel: Minimal, as needed to local job sites

Compensation:

The base hourly range for this position is $20/hr. USD. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

Equal Opportunity Employment Statement

Salas O’Brien provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, colour, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state/provincial, or local laws. Salas O’Brien will accommodate the disability-related needs of applicants as required by law.

Qualifications Education Preferred Masters or better. Bachelors or better. Experience Required Currently enrolled in a Bachelor's or Master's degree program in Engineering or a related field. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

Skills Required

  • Currently enrolled in a Bachelor's or Master's degree program in Engineering or a related field.
  • Genuine passion for the AEC industry and eagerness to learn and contribute to meaningful projects.
  • Strong communication skills and ability to work effectively in a collaborative team environment.
  • Ability to adapt to changing priorities and willingness to perform duties onsite or at project locations as required.
  • Experience in CAD software (AutoCAD, Revit) and familiarity with engineering analysis tools.
  • Prior internship or co-op experience in the AEC industry.

Salas O'Brien Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Salas O'Brien and has not been reviewed or approved by Salas O'Brien.

  • Healthcare Strength Healthcare options include multiple medical, dental, and vision plans with an individual medical option at no premium, plus no‑cost preventive medications and mental‑health resources. Employer‑paid disability and life coverage further strengthen the safety net.
  • Leave & Time Off Breadth Time off includes a base PTO allotment plus company office‑closure days and paid parental leave for births, adoptions, and foster placements. Feedback suggests the breadth of leave is a standout component of the package.
  • Retirement Support Retirement benefits include a 401(k) employer match with a potential additional company stock contribution, along with RRSP support in Canada and a student‑loan payment 401(k) match in the U.S. These features provide structured long‑term savings support beyond base pay.

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The Company
HQ: Irvine, California
2,062 Employees

What We Do

Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment. Our team is engineered for impact™, helping clients achieve critical goals, advancing our team members through growth and opportunity, and operating at the center of important global issues, including sustainability and decarbonization. We are a top firm as ranked by Engineering News-Record and Consulting-Specifying Engineer, and we have appeared for over a decade on the Inc. 5000 list of North America’s fastest-growing private companies.

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