Mechanical Engineering Intern | Freeport, ME

Mechanical Engineering Intern | Freeport, ME

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 Freeport, ME to work with experienced engineers and consultants on engineering analysis, design, and implementation oversight of mechanical systems for the vertical building industry. This internship provides hands-on experience over 10-12 weeks.

You will assist with project design, documentation, coordination, and job site observations while working within project budgets and collaborating with cross-functional teams. The team supports commercial, industrial, and institutional markets.

At a Glance

Location: Freeport, ME
Discipline: Mechanical
Markets: Commercial; industrial; 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-system projects according to code and IMEG standards.
• Assist with researching commercially available equipment resources.
• Assist with client relations, project design notebooks, and documentation for permanent record files.
• Assist with coordinating design and schedules with architectural, structural, electrical, mechanical, technology, clerical, and equipment-supplier disciplines.
• Assist with documenting design decisions, meetings, and client instructions while monitoring project design progress.
• Assist with reviewing project documents for accuracy and completeness before requesting a 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 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

Preferred

• Prior internship experience in the building design consulting industry preferred

About the Team

• HVAC and mechanical systems that enhance performance and advance sustainability
• Multiple international ASHRAE Technology Awards for energy-efficient design
• Specialties include geothermal, chilled beams, central plants, and energy recovery
• Lifecycle analysis and rapid energy modeling for high-performance outcomes
• Projects across high-rise, healthcare, and industrial facilities

Why IMEG

We put people at the center of who we are, creating positive outcomes for people, communities, and our planet.

• 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 Maine Pay Range: $22.00–$24.00 per hour

The range listed above represents the base pay IMEG reasonably and in good faith expects to pay for this position in the work location identified above at the time of posting. For positions available in multiple locations, the minimums and maximums may vary based on work location.

Individual compensation will be determined based on job-related factors, including the candidate’s experience, education, knowledge, skills, abilities, and licensure and certifications.

Other rewards may include annual bonuses and stock ownership options. In addition, IMEG 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

Bring Your Career to IMEG

Apply today to contribute to meaningful engineering work and grow your experience with IMEG.

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

IMEG is committed to providing equal employment opportunities in all employment practices, without regard to race, color, religion, sex (including sexual orientation or gender identity), gender, national origin, disability, age, genetic information (including family medical history), parental status (including pregnancy, childbirth or related medical conditions including lactation), ethnic origin, hair type (including hairstyle or hair texture), citizenship status, marital status, military service, veteran’s status, political affiliation, non-merit-based factors, or any other characteristic protected by law. In accordance with antidiscrimination law, it is the purpose of this policy to put into effect these principles and mandates. IMEG prohibits discrimination and harassment of any type. IMEG conforms to the spirit as well as to the letter of all applicable laws and regulations.

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