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About Us

Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for industrial, life science, commercial, institutional, and residential related building projects.

About LJC

LJC is a full-service design, architecture, and engineering firm committed to enhancing the quality of the human experience and to improving how design and architecture can impact each individual’s emotional being. By harnessing the power of integrated design, including architecture, engineering, interior design, landscape architecture, and planning, the company achieves its clients’ goals and aspirations.

The Role We Want You For

The Senior Plumbing Engineer will be working with in-house Development, Architecture, and Construction teams to provide Plumbing Engineering/Design and Quality Assurance on projects for our nationwide clients.

Projects will consist of life science, distribution, industrial manufacturing, food and beverage, or other industrial process markets for existing building improvements and new construction.

The Specifics of the Role

• As a Senior Level Plumbing Engineer, you will be responsible for leading the plumbing engineering design and analysis, and for leading entry level Plumbing Engineers and/or Plumbing Designers.
• Perform as responsible in charge of the plumbing system answering questions and making decisions during design, contractor, and client meetings.
• Develop plumbing designs and specifications based upon a strong understanding of building codes, engineering principles, and industry standards, as well as providing a design that allows for preliminary pricing advantages based upon historical construction experience.
• Effective completion of plumbing designs meeting budget, schedule, and quality requirements.
• Balancing plumbing design of multiple projects of various sizes and complexity.
• Ability to perform plumbing calculations necessary for system layout and sizing.
• Generate plumbing specifications that are clear and concise, paying special attention to cost and constructability while still meeting client requirements.
• Review shop drawings and submittals to ensure compliance with scope of work.
• Collaborate in a team environment with the architect, fellow engineers/designers, and the contractor from project birth through completion.
• Project work may include conceptual design, schematic design, and full construction documentation (drawings and specifications).

Requirements

• Bachelor of Science in Mechanical Engineering from an ABET (Accreditation Board for Engineering and Technology) accredited university or college.
• Professional Engineer (PE) License preferred with ability to obtain licensure in multiple states.
• 10+ years of related plumbing engineering experience.
• Proficiency in Revit and Navisworks, and familiarity with Bluebeam preferred.
• Solid comprehension of IPC/UPC and IBC standards.
• Excellent written and verbal communication skills.
• Ability to effectively collaborate with design and construction team members.
• Strong desire to achieve technical and personal development aligned with performance goals.
• Effective time management skills and adaptability complementing a fast-paced design build landscape.

Some Things You Should Know

• No other builder can offer the collaborative design-build approach that Clayco does.
• We work on creative, complex, award-winning, high-profile projects.

Why Clayco and LJC?

• 2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal.
• 2025 ENR Midwest – Midwest Contractor (#1).
• 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5).
• 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3).
• 2025 ENR Top 25 Data Center Builders – Data Center Contractor (Top 3).

Benefits

• Discretionary Annual Bonus: Subject to company and individual performance.
• Comprehensive Benefits Package Including: Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs.

Compensation

• The salary range for this position considers a wide range of factors in making compensation decisions including but not limited to: Education, qualifications, skills, training, experience, certifications, internal equity, and location.