Process Mechanical Intern - Summer 2026

Jacobs; Irvine (CA); Hybrid; USD 42,000 - 62,000; Full time

Job summary

Jacobs is seeking a full-time summer Process Mechanical Engineering Intern to support our engineering team on water and wastewater related projects. You will assist senior engineers with design tasks, construction documents, and fieldwork under mentorship, gaining hands-on experience across process mechanical disciplines.

You'll work with CAD designers to translate requirements into construction drawings, produce specifications, and participate in site inspections.

Qualifications

• Pursuing a BS in Mechanical Engineering from an ABET-accredited program.
• Proficiency with AutoCAD, Revit and/or MicroStation.
• Good written and verbal communication, problem-solving and interpersonal skills.
• Authorization to work in the United States without visa sponsorship.

Responsibilities

• Work under the supervision of senior level engineers.
• Assist with design tasks, construction document production and field support.
• Participate in design coordination and execution of projects for planning and construction.
• Engage in technical writing and detailing construction drawings.
• Produce specifications and perform site inspections.
• Support during construction including submittal review and RFI responses.

Education

Bachelor of Science in Mechanical Engineering (ABET Accredited Program)

Tools

AutoCAD

Revit

MicroStation

Microsoft Office

Job description

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact

This role is for a fulltime summer Process Mechanical Engineering Intern. As a summer intern you will assist other process mechanical engineers with various project tasks that may include engineering design, contract document production and construction phase engineering support. You will be mentored by a group of professional engineers and technical experts in designing facilities such as water and wastewater pump stations, treatment facilities for water and wastewater plants, and conveyance systems like vaults, channels, and culverts.

Your typical job responsibilities will include

• Work under the supervision of senior level engineers.


• Perform a variety of technical and project assignments, which require the application of standard design engineering techniques, procedures and criteria.


• Participate in design, coordination, and execution of projects for our clients for planning, engineering and/or construction documents, reports, studies, and calculations.


• Engaging in technical writing, marking up and detailing construction drawings.


• Producing specifications.


• Performing field work tasks and site inspections.


• Assisting with services during construction which includes submittal review and RFI responses.

As part of our team, our goal is to provide a training opportunity to engage in the roles and responsibilities of an infrastructure focused process mechanical engineer. You will also collaborate with our CAD designers to communicate how process mechanical requirements get translated into construction drawings. This role will help you build a solid foundation in the fundamentals of Process Mechanical Engineering and show how mechanical design integrates with and impacts other disciplines.

This position is not eligible for employer-sponsored work authorization now or in the future. Candidates must be legally authorized to work in the United States at the time of hire and maintain such authorization throughout their employment without employer sponsorship.

Here’s what you’ll need

• Pursuing a Bachelor of Science degree in Mechanical Engineering from an ABET accredited program.


• Working knowledge of Microsoft Office applications.


• Proficiency in AutoCAD, Revit and/or MicroStation.


• Good written and verbal communication, problem-solving, and interpersonal skills.


• Authorization to work in the United States without the need for visa sponsorship, now or in the future

Ideally, you’ll also have

• 3.0 GPA minimum


• Self-driven time management and organizational skills.


• Experience with a PDF editor such as Bluebeam.


• EIT/EI or on track to obtain.

Our health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Employees have access to a 401(k) plan, as well as legally mandated benefits.

The base salary range for this position is $42,000.00 to $62,000.00; though will be paid hourly based on hours worked. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. Job posted on October 23, 2026. This position will be open for at least 3 days.

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.