Mechanical Engineering Intern - Summer 2027

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our Cause is powerful: to create a world where all environments improve everyday life.

Why Professionals Choose Core States Group 

Here’s what you can expect as an intern:

• VALUES-DRIVEN CULTURE – A workplace rooted in Integrity, Service, Inclusion, Excellence, and Innovation. Our Core Values guide how we work, how we treat each other, and how we show up for our clients every day.
• PERKS – Intern Welcome Package with branded swag, team-building activities, networking opportunities, group sessions with industry leaders, wellness initiatives and volunteer activities and much more!
• RETIREMENT – A strong 401(k) match, with immediate vesting, to help you invest in your future and build your retirement savings with confidence.

What You’ll Do

As a Mechanical Engineering Intern, you’ll work alongside experience mechanical engineers and project teams on HVAC and plumbing system design projects. Throughout this 11-week internship program, you will: 

• Assist with HVAC and plumbing design calculations
• Support equipment selection and system layouts
• Participate in multidisciplinary coordination meetings
• Review construction documents and shop drawings
• Attend site visits and observe construction progress
• Learn about sustainable and energy-efficient building system design
• Assist with preparing engineering documentation and specifications

Software & Technical Skills You’ll Learn

Interns will gain hands-on experience using industry-standard mechanical engineering software and tools, including: 

• Revit
• AutoCAD
• Bluebeam Revu
• BIM coordination tools
• Microsoft Excel

Qualifications

We're looking for driven students who are eager to grow their professional skills, contribute to real-life, meaningful projects, and be a part of a talented team. The following qualifications will help you succeed in this role: 

• Currently enrolled as a junior pursuing a Bachelor’s degree in Mechanical Engineering or related field
• Interested in HVAC, plumbing, and building systems design
• Strong analytical and problem-solving skills
• Effective communicator and collaborative team player
• Eager to learn in a fast-paced, multidisciplinary AEC environment

Work Location

This is an onsite position based out of the following Core States Group offices: Bentonville, AR or Somerville, NJ. 

Overview

Core States Group is an industry-leading architecture, engineering, and construction (A/E/C) firm trusted by many of the world’s most notable brands. With 26 offices across the United States and Canada, the firm delivers speed to market, cost certainty, and compelling design for national multisite programs and projects.
 

Established in 1999, Core States Group drives innovation and improves everyday life for countless people across several markets, including Convenience, Distributed Generation, Financial, Grocery, Housing, Industrial, Restaurants, Retail, Semiconductor, Zero-Emission Vehicle (ZEV) Infrastructure, and more. 

A Note to Candidates

Please do not be concerned if you do not meet every requirement. At Core States Group, we are dedicated to building a diverse and inclusive workplace, so if you are excited about this role but your experience does not align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

This position will remain open until it is filled.