Mechanical Engineering Intern | Ontario, CA

Location: Ontario, California

Mechanical Engineering Intern | Ontario, CA

100% Employee-Owned · Big-firm resources, local-team relationships, ONE IMEG culture

This posting is for Summer 2027 Internship opportunities.

IMEG is hiring a Mechanical Engineering Intern in Ontario, California. Over 10-12 weeks, you'll assist in the analysis, design, and implementation oversight of mechanical systems for the vertical building industry while gaining hands-on experience through real project work alongside experienced engineers and consultants.

In this role, you'll support project budgets, collaborate with cross-functional teams, and help meet project goals and client expectations across education-focused work. You'll contribute in a collaborative environment that also supports broader public-sector and institutional work, advancing high-performance, energy-efficient design aligned with MEP2050 and AIA2030.

At a Glance

Location: Ontario, CA

Discipline: Mechanical

Markets: Education

Ownership: 100% employee-owned (ESOP)

Work Schedule: Full-time in office, 10-12 week summer program

Program Length: 10-12 weeks

Sponsorship: Not available

What You'll Do

Assist with design portions of mechanical systems projects according to code and IMEG standards

Assist with researching commercially available equipment

Assist with maintaining client relations, project design notebooks, and documentation for permanent record files

Assist with coordinating design and schedule with architectural, structural, electrical, mechanical, technology, clerical, and equipment supplier teams

Assist with documenting design decisions, meetings, and client instructions while monitoring project design progress

Assist with reviewing project documents for accuracy and completeness before final check

Assist with preparing and issuing addendum information

Conduct periodic job site observations and other services required by the contract services agreement

What You'll Bring

Required Education

Completed at least 2 years towards a Bachelor of Science (BS) Degree in Mechanical Engineering, or equivalent required

Required Experience

Prior internship experience in the building design consulting industry preferred

Required Skills/Abilities

Strong interest in design consulting

Proficient with MS Office Suite including, but not limited to, Word, Excel, and Outlook

Skilled in AutoCAD and/or Building Information Modeling (BIM) software

Ability to clearly communicate in both oral and written communication to individuals or groups

About the Team

Service mix is centered on education work across K-12 and higher education, with a notable supporting presence in healthcare and public-sector projects. The recurring pattern is full mechanical, electrical, and plumbing design for classrooms, labs, additions, modernization efforts, and barrier-removal work, with fire protection and technology showing up frequently on larger assignments.

They also handle medical renovations, municipal/public-safety work, EV and power upgrades, commissioning, security, audio/visual, and occasional civil or survey support. Overall, the portfolio suggests a team that is especially strong in school modernization, science/lab environments, and California public-institution upgrades.

Recent work includes Rose Villa Health Care Center - HVAC Anchorage, Healthcare; Grand CA Hotel Rooms Renovation-Hot Water Risers, Hospitality; and Baskerville Residence and Addition, Commercial.

Why IMEG

We put people at the center of who we are, creating positive outcomes for people, communities, and our planet. As a 100% employee-owned firm, every team member shares in that mission as an owner.

A paid internship with real, hands-on project work, not busywork

A structured program with an assigned mentor and a cohort of fellow interns

A clear path to full-time: many interns and co-ops convert to full-time roles at IMEG

IDEA Program: a firm-wide innovation accelerator where employees across every discipline develop and scale new tools, from VR and AI to carbon-reduction technology

Real impact from day one: at IMEG, an intern once became our Virtual Reality leader

Exposure across disciplines and offices at a 100+ office, employee-owned firm

MEG, our in-house AI platform, helps employees find information and build agents that streamline project workflows and calculations

State of California Hourly Range: $22.00 – $24.00

Minimums and maximums may vary based on location. Individual pay will be based on several factors including experience, knowledge, skills, and abilities of the applicant. Other rewards may include annual bonuses and stock ownership options. In addition, IMEG Corp. provides a variety of benefits to employees, including health insurance coverage, an employee wellness program, life and disability insurance, a retirement savings plan, paid holidays, and paid time off (PTO). This information is being provided in compliance with local laws. Additional information regarding employee benefits may be found on our company website at www.imegcorp.com

Bring Your Career to IMEG

Apply today to gain hands-on experience, contribute to meaningful projects, and grow with a firm that puts people, communities, and shared ownership at the center of its work.

IMEG, an employee-owned corporation, is committed to investing in employees’ futures through professional development programs and opportunities for career advancement. We offer a comprehensive benefits package including generous PTO, flexible schedule, and assistance with tuition reimbursement. Additionally, employees are eligible to enroll in health, dental, vision, and life insurance on their first day of employment.

Want to learn more about IMEG and our other amazing career opportunities?  Please visit https://www.imegcorp.com/careers/.

IMEG is committed to providing equal employment opportunities in all employment practices, without regard to race, color, religion, sex (including sexual orientation or