Sustainability & Energy Engineering Intern

Sustainability & Energy Intern | Naperville, IL

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

This posting is for Summer 2027 Internship opportunities.

IMEG is hiring a Sustainability & Energy Engineering Intern in Naperville, IL. Over the course of 10 to 12 weeks, you will work closely with experienced engineers and consultants on engineering analysis and the implementation of sustainability and energy efficiency measures in buildings.

In this role, you will support sustainable design through energy modeling, daylight analysis, carbon analysis, life cycle cost analysis, LEED, WELL, PHIUS, and Green Globes certification support and administration, and CFD analysis. You will also collaborate with cross-functional teams and work within project budgets to help meet project goals and client expectations.

At a Glance

Discipline: Sustainability & Energy

Markets: Strategic Growth Services; Executive Leadership
Ownership: 100% employee-owned (ESOP)
Work Schedule: Hybrid, 10 to 12 week summer program
Program Length: 10 to 12 weeks
Sponsorship: Not available

What You'll Do

• Assist with sustainable design practices across the company.

• Assist with building performance analyses on projects.

• Support green building certification efforts, including energy modeling, documentation, and certification coordination for the project team.

• Coordinate design information from architectural, structural, electrical, mechanical, technology, clerical, and equipment-supplier sources to inform energy models.

• Assist in identifying building and campus decarbonization strategies, including solar photovoltaic assessments and calculations.

• Assist in making sustainable design recommendations and design decisions with support from senior staff.

• Research code requirements for energy-efficient design, including LEED, IECC, and ASHRAE 90.1.

• Assist with the preparation and issuance of reports.

What You'll Bring

Education and Experience

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

• Prior internship experience in the building design consulting industry preferred

Required Skills/Abilities

• Strong interest in sustainability and innovation

• Working knowledge of building interior and exterior systems

• Working knowledge of green building certifications such as LEED, WELL, Living Building, etc.

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

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

About the Team

• The team supports sustainability, decarbonization, and compliance initiatives

• Current work includes energy modeling, LL97 and LL88 support, audits, solar and BESS analysis, and NYSERDA support

• The team contributes across strategic growth services and executive leadership initiatives

• Recent work includes St. Barnabas Clean Green Hospital Study, Healthcare / Decarbonization, and DCAS Task Order 1 - IMEG-TO1-EER, Government / Municipal Energy Services

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

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 gain hands-on experience supporting sustainable design, energy analysis, and decarbonization efforts while contributing to projects that help clients improve building performance.

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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