Internship Prefab Jobs in Minnesota (NOW HIRING)

At Horwitz, we don't just offer jobs-we build careers. For over 100 years, we've been a leader in HVAC, plumbing, electrical services, delivering exceptional service while fostering a supportive and innovative workplace. Joining our team means working with passionate professionals in a culture built on safety, accountability, professionalism, motivation, curiosity, and a can-do attitude.
We're committed to your growth with training, mentorship, and advancement opportunities. Along with competitive benefits-you'll be part of a company that values its employees and makes a positive impact in the community. Join Horwitz and become part of a legacy of excellence and opportunity.
The Project Engineer I at Horwitz supports project managers, field teams, and trade partners through strong communication, organization, and teamwork while demonstrating our core values: Safe, Accountable, Professional, Motivated, Can Do, and Curious. This position assists with project documentation, cost tracking, scheduling, planning, and technical support while developing a foundational understanding of construction methods, materials, systems, and codes. By coordinating with stakeholders, managing project requirements, and supporting a culture of safety and continuous improvement, the Project Engineer I helps deliver projects efficiently and to Horwitz standards.
Position Details
These responsibilities generally describe the nature of the position and may not be all-inclusive.

• Documentation & Contract Management
  • Manage equipment submittals as needed.
  • Review the Horwitz Way "Contract Review" document.
  • Understand the layout of project folders in Box and manage project documentation.
  • Complete receipt inspections for project equipment deliveries.
  • Apply for city or DOLI permits with assistance from Project Managers.
  • Gather project closeout documents with Project Manager assistance.
• Cost Management
  • Send equipment and material pricing requests using schedules, specifications, and material lists provided by Design or Service Project Managers.
  • Understand the concepts and processes associated with project change orders and proposals.
  • Begin developing an understanding of forecasting for Service/IS projects.
  • Become familiar with estimating tools.
  • Understand commodity material buyout pricing, including hardware, pipe, fittings, hangers, ductwork, and related materials.
  • Develop an understanding of field labor roles, including Foremen, Journeymen, and Apprentices, as well as applicable labor rates.
• Technical Skills
  • Become familiar with the different materials used in Service projects.
  • Develop an understanding of ductwork, hydronic, and plumbing construction methods.
  • Develop an understanding of HVAC, hydronic, and plumbing system operation and design.
  • Develop an understanding of electrical requirements relevant to mechanical construction.
  • Develop an understanding of temperature controls requirements relevant to mechanical construction.
  • Develop an understanding of mechanical and plumbing code requirements and applicable standards, including ASHRAE and IECC.
  • Understand the prefabrication process.
  • Understand the roles and scopes of work of Horwitz subcontractors.
  • Complete receipt inspections for project equipment deliveries.
• Communication
  • Attend meetings with customers, owners, and general contractors.
  • Follow guidance from Project Managers and field teams while demonstrating a strong motivation to learn, assume additional responsibilities, and advance professionally.
  • Learn how Project Managers develop and maintain relationships with customers, trade partners, and general contractors.
  • Attend internal meetings, including weekly foreman meetings, prefab meetings, constraint meetings, lessons learned, WIP meetings, and project handoffs.
  • Understand the concepts and processes associated with different billing types, including GMP, simple, T&M, and lump sum.
• Project Planning
  • Understand project schedules.
  • Learn the fundamentals of Horwitz's labor force and labor requirements based on project scope and timeline.
• Perform other duties as assigned.

Education and Experience:

• Bachelor's degree in construction management, Mechanical Engineering, or related field preferred; equivalent combination of education and experience considered.

• Internship or prior experience in construction, engineering, or project coordination preferred but not required.

• Knowledge of mechanical systems (HVAC, plumbing, hydronic) or construction processes is a plus.

• Willingness to learn industry codes, safety standards, and project management practices.