Full-Time

Mechanical Engineer III

Posted on 7/5/2026

CRB

CRB

Life sciences design and construction

No salary listed

St. Louis, MO, USA

Hybrid

Three days on-site per week required.

Bachelor's

Category
Mechanical Engineering (2)
,
Requirements
  • Bachelor’s degree in Mechanical or Architectural Engineering (ABET-accredited)
  • 5+ years of professional experience in mechanical system design (AEC environment preferred)
  • Professional Engineer (PE) license
  • Experience designing HVAC and mechanical systems for commercial or industrial facilities
  • Strong understanding of engineering fundamentals, codes, and industry standards
Responsibilities
  • Design and engineering: Design HVAC and mechanical utility systems for new construction, renovations, and process-driven environments.
  • Perform engineering calculations, including heating/cooling loads, energy modeling, and system sizing.
  • Develop construction documents, including drawings, P&IDs, specifications, and system layouts.
  • Select and specify equipment and ensure designs align with applicable codes and standards (ASHRAE, NFPA, etc.).
  • Lead the mechanical scope for small to mid-sized projects or major portions of larger projects.
  • Manage deadlines, deliverables, and mechanical budgets for assigned work.
  • Contribute to all phases of design, including conceptual, schematic, design development, and construction.
  • Collaboration and coordination: Partner closely with architects, engineers, contractors, and clients to deliver coordinated designs.
  • Participate in site visits, field surveys, and construction support activities (RFIs, submittals, punch lists).
  • Ensure designs are practical, constructible, and aligned with project goals.
  • Team and quality leadership: Mentor and support the development of junior engineers and designers.
  • Lead quality checks and ensure deliverables meet CRB standards.
  • Contribute to continuous improvement and internal knowledge sharing
Desired Qualifications
  • Experience in life sciences, pharmaceutical, biotech, laboratory, or food & beverage facilities
  • Familiarity with GMP environments or regulated industries
  • Proficiency with Revit, AutoCAD, and BIM tools
  • Experience working with contractors, vendors, and multidisciplinary teams
  • Exposure to sustainable design practices (LEED, WELL, etc.)
  • Experience with plumbing systems and/or field assessments

CRB is an engineering, architecture, construction, and consulting firm serving life-sciences organizations. The company plans, designs, builds, and improves laboratories, manufacturing facilities, food plants, and other technically complex environments. It serves biotechnology, pharmaceutical, food and beverage, advanced technology, and research organizations. Its operating model centers on integrated project teams combining consulting, design, engineering, construction, commissioning, and operational expertise. Teams work across architecture, engineering, construction, consulting, project management, commissioning, and technical operations. Work depends on specialist expertise, clear client coordination, practical delivery, and ongoing support across projects and operating teams.

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INACTIVE