Internship (Summer 2027)
Mechanical Solutions (MSI)
Full Time
St. Louis, Mo
Mechanical Solutions, Inc. is the largest minority owned design-build mechanical contractor within the state of Missouri. We specialize in value added engineering and design-build projects, our goal is always to build the most efficient systems for the best value possible. MSI is extremely competitive in the design-build market locally, regionally, and nationally.
Our portfolio of projects includes new construction, renovations, and remodeling ranging from small office renovations/retrofits, condominiums, restaurants, retail, multi-story commercial offices, higher education facilities, warehouses, laboratories and health-care facilities. We have continually proven our ability and desire to provide the best service for our clients possible. By providing the majority of mechanical requirements in-house, including engineering, estimating, 3D-design/BIM coordination, sheet metal, HVAC, refrigeration, and controls, we are a
“ONE-STOP” shop for any project.
As an Intern you will have the opportunity to shadow experienced Project Engineers, Project Managers, Estimators, and Safety Professionals. In this role you will be part of the team responsible for taking projects from the conceptual stages through the closeout of a project. You will experience active job site visits, hands on work experience, and valuable safety training.
Why Mechanical Solutions:
Mechanical Solutions is committed to an inclusive and safe work environment that makes people feel connected and reach their full potential. We work with people that are committed to a diverse and welcoming environment that all can feel connected and see themselves represented at every level of our Company. We strive to be Leaders in the communities that we do business. We are one of the fastest growing construction firms in the nation, and continue to grow year after year. If You are set to take your career to the next level…
Come join the Mechanical Solutions TEAM!
Career Growth
Comprehensive Benefits
Headquarters Perks
Company Culture
Compensation: This is a PAID Internship
Mechanical Solutions, Inc. is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer and it is our policy to provide equal opportunity to all people without regard to race, color, religion, national origin, ancestry, marital status, veteran status, age, disability, pregnancy, genetic information, citizenship status, sex, sexual orientation, gender identity or any other legally protected category. Mechanical Solutions, Inc. is a background screening, drug-free workplace. Both of these requirements will be partial determination of final result in hiring. Mechanical Solutions, Inc. does not accept unsolicited resumes from search firms or agencies. Any resume submitted to any employee of Mechanical Solutions, Inc. without a prior written search agreement will be considered unsolicited and the property of Mechanical Solutions, Inc.
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

At TW Constructors and our affiliate companies, we’re dedicated to delivering an unmatched construction experience. With over two decades of industry leadership, we proudly hold MBE Certification as a General Contractor, symbolizing our commitment to excellence. Our unique business model integrates TW Constructors, Mechanical Solutions, Fire Solutions, and Glazing Solutions, all under one roof. This seamless integration allows us to offer a complete suite of services, addressing every aspect of your construction needs with precision and expertise.
Our strength lies in our cohesive, interdisciplinary team, skilled at navigating intricate projects with unparalleled precision. By leveraging the collective capabilities and resources of our affiliated companies, we customize strategies to suit each client’s unique needs. This ensures not just efficiency but also unmatched expertise across projects of any size or complexity.
Specializing in everything from transformative renovations to bespoke tenant build-outs, we have a proven track record of turning dreams into realities. Place your trust in us to guide your project from inception to completion, with a steadfast commitment to quality, innovation, and customer satisfaction. Choose us for a construction journey that guarantees the success of your project every step of the way.
For more information visit us at www.twc-stl.com.