Mazzetti, INC. - Mechanical, Electrical, or Plumbing Internship na Mazzetti, INC.

Who We Are

Mazzetti, an employee-owned benefit corporation, partners with clients to bend the climate curve by providing top-tier MEP consulting, design, and technology solutions. With a diverse team spanning the U.S., India, and Africa, we leverage diverse perspectives to drive creativity and success. Guided by our core values—Team First, Earn Trust, and Inspire—we foster collaboration, innovation, and excellence in every project.

Mazzetti's MEP Consulting Engineering Practice is dedicated to designing innovative, sustainable solutions for the built environment, with a strong focus on healthcare, life sciences, and infrastructure projects. Our team of experts combines technical excellence with a collaborative, client-focused approach to deliver exceptional outcomes. 

Our Vision: Creating healthier, enduring environments

Our Mission: Bending the climate curve™

Our Core Values:

• Earn Trust: Trust is the foundation of our success. Through transparent communication, ethical practices, and consistent results, we build enduring relationships with clients, partners, and communities.
• Team First: We prioritize collaboration, inclusivity, and mutual support, recognizing that collective strength drives success. Every team member’s unique contributions are valued and celebrated.
• Inspire: We ignite creativity, innovation, and passion to exceed expectations, fostering a culture of learning and bold exploration that drives positive change and lasting impact.

In 2025, we proudly achieved the JUST Label —an affirmation of our values-driven culture and dedication to environmental and social impact. 

Job Summary

Join Mazzetti’s innovative team as a Mechanical, Electrical, or Plumbing Spring Semester and/or Summer Internship and gain hands-on experience shaping the built environment! This internship provides opportunities to learn and assist with building calculations, system modeling, preparing construction drawings, coordinating efforts within Mazzetti (including sustainability and LEED initiatives), and collaborating with other disciplines. You may also have the chance to participate in limited construction observation activities. 

Your Tasks Will Involve

Design and Modeling:

• Performing building calculations to support engineering designs.
• Modeling mechanical, electrical, and plumbing (MEP) systems using advanced tools and software.
• Preparing and refining construction drawings in collaboration with project teams.
• Learning and applying industry-standard tools like CAD and Revit to produce high-quality deliverables.

Sustainability and Innovation:

• Supporting sustainability initiatives, including LEED documentation and energy modeling (if applicable).
• Contributing to innovative, sustainable solutions for the built environment.

Collaboration and Coordination:

• Coordinating efforts with the Mazzetti team and other disciplines to ensure project success.
• Participating in project planning and design discussions to gain insights into real-world engineering challenges.
• Collaborating with mentors and peers to develop technical and professional skills.

Construction and Observation:

• Participating in limited construction observation activities to understand the implementation of designs on-site.

Work Location:  This position is based near one of our Mazzetti offices in St. Louis, MO; San Francisco, CA; Sacramento, CA; or Huntington Beach, CA. The role follows a hybrid work arrangement, including time spent in the office, at project sites, and working remotely from home. 

Travel Requirements: Occasional local travel to project sites. 

Expertise And Abilities You Will Contribute

Education

• Currently pursuing a bachelor’s degree in engineering (Architectural, Electrical, Mechanical, or Environmental)

Technical skills

• Experience with CAD and Revit drafting/drawing production.
• Energy modeling experience is a plus.

Certification

• In pursuit of or eligible to obtain Engineer-in-Training (EIT) certification preferred.

Soft Skills & Interests

• Experience with and/or interest in performing technical design tasks and contributing to innovative projects.
• Excellent communication and interpersonal skills to collaborate effectively in a team-oriented environment.

Achieving Success Will Be Within Your Grasp If You

• Demonstrate a genuine interest in consulting engineering and a desire to contribute to impactful projects that shape the built environment.
• Demonstrate integrity, accountability, and a commitment to delivering high-quality work on every task.
• Collaborate effectively with peers, mentors, and cross-disciplinary teams, embracing teamwork to achieve shared goals.
• Bring curiosity, enthusiasm, and innovative thinking to every project, helping to drive forward meaningful solutions for the built environment.

What We Offer

Mazzetti’s Engineering Internship Program is thoughtfully designed to bridge academic learning with professional practice. Our goal is to provide interns with a meaningful, well-rounded experience that builds both technical capabilities and a deeper understanding of the real-world impact of engineering in the built environment. Through mentorship, project engagement, and cross-functional exposure, interns are positioned to grow personally and professionally, while contributing to Mazzetti’s mission of creating healthier, more sustainable communities.

Compensation: Internship compensation is provided on an hourly basis and will vary depending on your experience and job-related skills.

Learning & Development: Access structured and informal growth opportunities, from lunch-and-learns and firm-wide workshops to career pathway guidance and professional trainings.

Interdisciplinary & Cultural Exposure: Build relationships across the firm through intern gatherings, cross-disciplinary meet & greets, and company-wide events.

Cultural Connection: Engage with Mazzetti’s culture through local office events, Employee Resource Groups (ERGs), our Wellness Program and more.

Mazzetti embraces diversity and is an Equal Opportunity Employer. We value individuals from all backgrounds and do not discriminate based on race, color, religion, gender, sexual orientation, national origin, genetics, disability, age, or any other protected characteristic. We are committed to creating an inclusive environment where everyone is respected and empowered to contribute. Join us in shaping a brighter future through engineering and innovation.