Mechanical Engineering Intern | San Francisco, CA

This posting is for Summer 2026 Internship opportunities.

Join IMEG as a Mechanical Engineering Intern in San Francisco or Ontario, CA and build your future with real-world project experience. Over 10–12 weeks, you’ll contribute to the analysis, design, and implementation oversight of mechanical systems for a variety of vertical building projects. You’ll work alongside experienced engineers, manage tasks within project budgets, and see how your efforts directly support client goals—while gaining the skills, knowledge, and professional network to launch your mechanical engineering career.

Principal Responsibilities

Assist in designing discipline-specific systems per code and IMEG standards

Research commercially available equipment

Support client relations, maintain project design notebooks, and prepare permanent record documentation

Coordinate design and schedules with other disciplines and suppliers

Document design decisions, meetings, and client instructions while tracking progress

Review project documents for accuracy and completeness before final checks

Prepare and issue addendum information

Conduct job site observations and perform services per contract requirements

Required Qualifications and Skills

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

Prior internship experience in the building design consulting industry preferred

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

This position is not eligible for sponsorship.

Why Join Us :

At IMEG, people are our priority — with a solid focus on career growth, work-life balance, and making a meaningful impact. As a 100% employee-owned firm, we combine the resources of a national design leader with the supportive culture of a local office. You’ll work alongside colleagues from diverse disciplines, contribute to innovative and sustainable projects, and help shape the communities we serve. Join a team where ideas are welcomed, professional development is supported, and every contribution makes a difference.

Mechanical Engineering Team Highlights :

Design HVAC, plumbing, and fire protection systems that create comfortable, safe, and efficient environments

Apply energy-efficient and sustainable strategies to meet client goals

Work on projects across education, government, healthcare, and commercial sectors

Collaborate with experienced engineers committed to mentorship and your professional growth

Be part of a team honored with multiple ASHRAE Society Technology Awards for mechanical innovation and sustainability

Locations available :

San Francisco, CA

Ontario, CA

State of California Salary Range $22.00 - $24.00 per hour. 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.

Apply today to shape the future of mechanical engineering innovation.

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 .