Mechanical Engineer III

16 hours ago

St Louis, MO, United States CRB Full time
Company Description

CRB is a leading provider of sustainable engineering, architecture, construction and consulting solutions to the global life sciences and food and beverage industries. Our more than 1,100 employees provide best-in-class solutions that drive success and positive change for our clients, our people and our communities. CRB is a privately held company with a rich history of serving clients throughout the world, consistently striving for the highest standard of technical knowledge, creativity and execution.

Job Description

We are seeking a highly capable and motivated Mechanical Engineer III with a strong focus on HVAC system design to join our growing team. This role is responsible for leading the mechanical scope on small to medium-sized projects of intermediate complexity, including new construction, renovations, and process-driven facilities.

The Mechanical Engineer III will manage HVAC and mechanical utility design efforts, coordinate with multidisciplinary teams, and ensure high-quality, code-compliant, and constructible solutions. This position offers the opportunity to act as Engineer-of-Record, mentor junior staff, and contribute to the development of CRB's technical standards and project delivery excellence.

Key Responsibilities
  • Lead the design and engineering of HVAC systems including airside, chilled water, heating hot water, steam, and exhaust systems.
  • Develop mechanical utility systems such as compressed air, natural gas, and process piping.
  • Perform engineering calculations including load analysis, pressure drop, and equipment sizing.
  • Prepare and review technical documentation including:
    • Design reports, narratives, and specifications
    • P&IDs, system schematics, plans, and installation details
    • Energy modeling and utility assessments
  • Coordinate with architects, engineers, clients, construction managers, vendors, and trade partners to ensure integrated and constructible designs.
  • Manage mechanical discipline scope, budget, and schedule on assigned projects.
  • Support proposal development, task planning, and project scheduling.
  • Lead quality assurance efforts and participate in internal design reviews.
  • Conduct field surveys, identify non-compliant conditions, and support construction administration activities (e.g., RFIs, submittals, punch lists).
  • Mentor junior engineers and designers and contribute to internal training initiatives.
  • Act as Engineer-of-Record for small to medium-sized projects when serving as Lead Mechanical Engineer.
Qualifications

Minimum Qualifications
  • Bachelor's degree in Mechanical Engineering or Architectural Engineering (mechanical focus) from an ABET-accredited program.
  • Minimum of 5 years of experience in mechanical engineering.
  • Professional Engineer (PE) license in good standing.
  • Experience in HVAC and mechanical utility system design within an AEC firm.
Preferred Qualifications
  • Experience in life sciences (pharmaceutical, biotech, laboratory) or food & beverage industries.
  • Familiarity with GMP manufacturing environments.
  • Proficiency in Revit, AutoCAD, Microsoft Office Suite, and Bluebeam Revu.
  • Knowledge of mechanical, plumbing, fire protection, and building codes.
  • Experience with industry standards (ASHRAE, SMACNA, ISPE, FDA, ISO, NFPA, OSHA).
  • Intermediate experience in plumbing design and documentation.
  • Familiarity with Revit plugins (e.g., Enscape, Unifi) and parametric tools (e.g., Dynamo, Grasshopper, Rhino).
  • Strong coordination skills across disciplines and with construction partners.
  • LEED, WELL, or other sustainable design credentials or experience.
  • Ability to troubleshoot mechanical systems and support field implementation.

#LI-JV1

Additional Information

All your information will be kept confidential according to EEO guidelines.

CRB is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity Employer and it is our policy to provide equal opportunity to all people without regard to race, color, religion, national origin, ancestry, marital status, veteran status, age, disability, pregnancy, genetic information, citizenship status, sex, sexual orientation, gender identity or any other legally protected category. Employment is contingent on background screening.

CRB does not accept unsolicited resumes from search firms or agencies. Any resume submitted to any employee of CRB without a prior written search agreement will be considered unsolicited and the property of CRB. Please, no phone calls or emails.

CRB offers a complete and competitive benefit package designed to meet individual and family needs.

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

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