Mechanical Engineer II

CRB • Full-time • St Louis, MO, US • 4m ago

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

The Mechanical Engineer II plays a key role in designing and delivering HVAC and mechanical utility systems for complex building environments. This position supports projects across all phases — from early studies through construction administration — and contributes to high‑quality, code‑compliant technical solutions for our clients.

You will perform engineering calculations, develop mechanical system designs, prepare reports and specifications, coordinate with internal and external partners, and help guide early‑career team members. Using BIM, CAD, and engineering software, you will help bring innovative, functional, and constructible solutions to life.

This is an excellent opportunity for an engineer ready to expand technical depth, increase responsibility, and contribute directly to project success.

Core Responsibilities

Technical Design & Analysis

Perform load calculations, utility assessments, energy modeling, and code evaluations.
Design mechanical systems (airside, chilled water, condenser water, hot water, steam, natural gas, compressed air, etc.) in coordination with other disciplines.
Size mechanical equipment, ductwork, and piping; develop system schematics and technical design documentation.
Produce plans, P&IDs, schedules, and installation details using BIM and CAD tools.

Project Execution

Develop design and construction drawing packages; edit specifications for projects of basic to moderate complexity.
Support all design phases: conceptual, schematic, design development, construction documents, and construction administration.
Participate in squad checks and maintain commitment to producing accurate, high‑quality deliverables.

Client & Team Collaboration

Interface with clients, contractors, trade partners, and equipment manufacturers.
Respond to RFIs, review submittals, contribute to punch lists, and assist with construction progress documentation.
Work closely with senior engineers to ensure coordinated, constructible designs.
Provide mentorship and task delegation to Mechanical Designer I and other early‑career team members.

Professional Growth

Engage in ongoing professional development activities.
Expand technical skillsets to include design and specification of increasingly complex mechanical systems.

Qualifications

Minimum Qualifications

ABET-accredited Bachelor’s degree in Mechanical Engineering or Architectural Engineering (mechanical focus).
Minimum 3 years of relevant engineering experience.
Successful completion of the Fundamentals of Engineering (FE) exam.
Foundational experience performing mechanical calculations and designing HVAC, mechanical utility, and piping systems.

Preferred Qualifications

Proficiency in Revit and AutoCAD.
Proficient with Microsoft Office and Bluebeam Revu.
LEED, WELL, or other sustainability‑related accreditation or experience.
Experience in Life Sciences, Pharmaceutical, Biotech, Laboratory, or Food & Beverage sectors.
Working knowledge of mechanical/plumbing/fire/building codes and industry standards (ASHRAE, SMACNA, ISPE, FDA, ISO, NFPA, OSHA).
Experience performing field surveys and preparing field reports.
Basic plumbing design experience.
Familiarity with Revit plugins (Enscape, Unifi) and parametric design workflows (Dynamo, Grasshopper, Rhino).
Strong coordination skills with internal teams, vendors, and construction partners.

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.