Plumbing Engineer Position

Jarrell has been building trusted partnerships since 1954—right here in St. Louis and across the country. As a family-owned, full-service mechanical contractor, we offer complete design-build MEP solutions, including pre-construction, engineering, installation, and service. Our in-house capabilities and state-of-the-art prefabrication shop give us greater control over quality, safety, and schedules from day one. From HVAC and plumbing to refrigeration and mechanical systems, we deliver smart, efficient systems that are built to perform—and built to last. Whether it's data centers, manufacturing plants, schools, or multi-family housing, our team brings hands-on expertise, innovative thinking, and a commitment to doing the job right every time.

• Design plumbing systems for commercial and industrial facilities, including domestic water, sanitary, storm, and medical gas systems.
• Produce and review drawings, layouts, and specifications in accordance with project requirements and code compliance.
• Collaborate with architects, GCs, and internal teams to ensure coordinated, constructible designs.
• Participate in preconstruction efforts such as budgeting, value engineering, and system selection.
• Support field installation through coordination, clarifications, and site visits.
• Review submittals and assist with final turnover documentation.

• Plumbing design experience in the commercial construction industry is a plus.
• Familiar with local plumbing codes.
• Experience with BIM tools like Revit and CAD software like AutoCAD a plus.
• Effective communicator who enjoys working cross-functionally with field teams and project partners.
• Detail-oriented, responsive, and focused on delivering real-world solutions.

• Competitive salary based on experience and credentials.
• Full benefits package—health, dental, vision, life insurance, 401(k) with match, and PTO.
• Opportunities for growth, professional development, and leadership.
• Supportive design team environment where your ideas and experience are valued.
• Exposure to a wide range of project types, clients, and technologies.