Mechanical Design Engineer

About Murphy Company

Since 1907, Murphy Company has been a leading mechanical contractor in the St. Louis and Denver markets that provides its professionals with the environment, opportunities, technology, and tools to experience a rewarding career. Being a company that prides itself on its core values of employee well-being, enduring relationships, and integrity and professionalism, we know it starts with our employees. We strongly believe our people are our most important asset, and we strive every day to make Murphy a great place to work as we build our clients’ visions.

Position Summary

Murphy Company is seeking a Mechanical and Plumbing Engineer for our Design/Build Group. This position will support the engineering team with mechanical design for commercial and industrial projects. The role includes interaction with and support for the Murphy Operations team, owners/end users, and third-party consultants. The ideal candidate will have strong technical skills and an eagerness to learn and develop creative solutions for our customers.

Key Responsibilities

• Reports to the Engineering Manager.
• Assist with the design and layout of HVAC and plumbing systems for new construction, renovations, and system upgrades.
• Support internal drawing production, including mechanical drawings, details, schematics, and construction documents using Revit software.
• Perform basic engineering calculations, including heating and cooling loads, airflow requirements, hydronic flow rates, duct sizing, and piping sizing.
• Seek guidance from senior engineers and incorporate feedback into work product.
• Support the construction phase by reviewing equipment submittals, shop drawings, and requests for information (RFIs).
• Attend project meetings (virtual and in person) to support the Colorado Design Build work program.
• Attend site surveys and job walks.

Industries Served

• Bio-Pharmaceutical
• Laboratory & Clean Spaces
• Food and Beverage
• Mission Critical
• Light Industrial
• Manufacturing
• Higher Education
• Heavy Mechanical Retrofit
• Commercial

Education and Experience

• 3–5 years of experience in Mechanical/Plumbing Engineering.
• Experience in the Design Build method of project delivery is a plus.
• Desire and interest to work on Advanced Facility mechanical projects (Pharma, Food Manufacturing, Healthcare, Data Centers, Clean Rooms, Industrial, process piping, etc.).
• BS in Mechanical Engineering.
• EIT/FE preferred, with future P.E. licensure being pursued.
• Hydronic, sheet metal, and plumbing experience required.

Knowledge, Skills and Abilities

• Strong written and verbal communication skills.
• Competency in various industry calculation and simulation programs, including Trane TRACE 700/3D or Carrier HAP 3D.
• Detailed load calculations and system sizing.
• Revit, AutoCAD, and Bluebeam.
• Manufacturer equipment selection software, Murphy employee platforms, CRM, and other company-provided software systems.
• Controls interaction and experience developing sequences of operations is a plus.

Work Location

This is a fully onsite position based at Murphy Company’s Thornton, Colorado office. The position requires working onsite five days per week and is not eligible for remote or hybrid work arrangements.

What We Will Bring to the Table

• A collaborative, family-friendly work environment.
• Knowledge and expertise that have helped us grow and thrive for nearly 120 years.
• Competitive pay, a bonus, and an excellent benefits package, including health and life insurance, a robust wellness program, 401(k), and profit sharing.
• A robust PTO program designed to support real work–life balance.