Mechanical Project Engineer

IMEG is hiring a Mechanical Project Engineer in Naperville, IL, to lead mechanical design efforts for low to moderate complexity projects as a project manager or lead engineer. You’ll deliver engineering analysis, design, and implementation oversight of HVAC, plumbing, and fire protection systems for the vertical building industry—collaborating with senior staff on larger, higher-complexity work and partnering closely with engineers and consultants to achieve positive client outcomes. You will also support project budgets, mentor and train others, and collaborate across disciplines to meet project goals and client expectations.

Principal Responsibilities

• Lead the analysis and design of HVAC, plumbing, and fire protection systems for vertical building projects
• Develop code-compliant designs, specifications, and calculations in accordance with IMEG standards
• Partner with clients to gather requirements, communicate technical information, and maintain strong working relationships
• Lead project planning, budgeting, and scheduling efforts to meet deadlines and objectives
• Document design decisions and client instructions while monitoring design progress (percent complete and fee expended)
• Analyze engineering problems and develop practical, efficient solutions in collaboration with senior engineers and consultants
• Perform in-process design reviews and apply IMEG quality control processes to meet internal, industry, and client requirements
• Prioritize safety by identifying and mitigating potential risks associated with mechanical systems
• Collaborate with multidisciplinary teams (engineers, architects, project managers) to deliver integrated project solutions
• Identify potential project issues and seek guidance from the Project Manager as needed
• Support projects through bidding and construction administration

Required Qualifications And Skills

• Bachelor of Science (BS) Degree in Mechanical Engineering, or equivalent, required
• Professional Engineer (PE) License required
• 5 years of experience minimum required, 6 preferred, in the building design consulting industry
• Proficiency in design techniques, tools, and concepts involved in the production of technical plans and specifications
• Strong technical and analytical skills including proficiency of principles in thermodynamics, psychrometrics, heat transfer and fluid mechanics relating to mechanical design in HVAC, plumbing and fire protection systems
• Strong training and mentoring skills
• Proficiency of industry standard engineering software and tools including HVAC load calculation software
• Excellent communication and interpersonal skills
• Ability to work collaboratively in a team environment
• Attention to detail and problem-solving skills
• Eagerness to adapt to new challenges
• Proficiency in the use of BIM software
• 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
• Ability to travel up to 15% with occasional overnight stays This position is not eligible for sponsorship.

Why Join Us

IMEG puts people first—with a strong focus on career growth, work-life balance, and meaningful impact. As a 100% employee-owned firm, we offer the resources of a national design leader with the close-knit culture of a local office. You’ll collaborate across disciplines, contribute to innovative, sustainable projects, and shape the communities we serve. Join a team where your ideas are valued, your development is supported, and your work truly matters.

You’ll help deliver mechanical solutions that support occupant comfort, indoor air quality, and energy performance.

Mechanical Team Highlights

• Mechanical engineers support HVAC and mechanical system design, including central plants, building automation and controls, and energy recovery solutions
• The mechanical team applies lifecycle analysis, rapid energy modeling, and sustainable design practices to support energy-efficient outcomes
• Work supports occupant comfort and indoor air quality alongside reduced energy consumption
• The team’s work includes advanced HVAC system design and has a track record of recognized innovation, including international ASHRAE Technology Awards

Locations available: Naperville, IL

State of Illinois Salary Range: $95,000 - $115,000

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

Apply today to bring your mechanical engineering expertise to projects that make a measurable impact on the built environment and the communities we serve.

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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