Building Mechanical; HVAC Engineer

We currently have an opportunity for a Building Mechanical Engineer to join our team. This role will work directly with engineers and other design staff to provide building mechanical and plumbing designs for facilities primarily serving the water and wastewater industries. Duties include assisting in the development of P&IDs, layout and design of equipment, design of building mechanical and plumbing systems, development of 3D models, production of contract documents, field investigations, and support during construction.

Additional responsibilities will include assisting the National Discipline Lead with updating company design standards and details. The successful candidate will enjoy working in a collaborative multi-discipline environment to develop designs for new facilities, expansions, upgrades and retrofits. Projects include both conventional design/bid/build and alternative delivery such as design/build.

The TC2, Building Mechanical Engineering role is responsible for developing HVAC, plumbing, and fire sprinkler calculations for commercial buildings and wastewater treatment facilities. The role interprets NFPA standards and ensures that all designs meet regulatory requirements. The role includes sizing ductwork, plumbing, and fire sprinkler distribution systems, as well as selecting suitable equipment. The role drafts and models these systems using AutoCAD and Revit software and develops specifications in Word and Speclink.

• Develop HVAC, plumbing and fire sprinkler calculations for building projects.
• Interpret mechanical, plumbing, building, and fire codes for design application.
• Work with NFPA standards to design and check systems.
• Size ductwork, plumbing and fire sprinkler distribution systems in building structures.
• Use applicable software to draft and model HVAC, plumbing and fire sprinkler systems.
• Generate specifications for HVAC, plumbing and fire system equipment using software tools.
• Review HVAC, plumbing and fire sprinkler drawings/specifications and ensure they meet requirements.
• Coordinate with other engineering disciplines to achieve project milestones.
• Flexibility to adapt and execute various additional assignments based on evolving needs.

• May provide mentorship, guidance, support, and knowledge-sharing to help less experienced team members develop their skills and grow within their roles.

• Adept at interpreting and applying mechanical, plumbing, building, and fire codes as well as NFPA standards.
• Proficient in using software for drafting and modeling HVAC, plumbing and fire sprinkler systems.
• Skilled in developing HVAC, plumbing and fire sprinkler calculations and specifications.
• Excellent problem-solving skills for handling routine tasks.
• Ability to review and coordinate HVAC, plumbing, and fire sprinkler drawings/specifications with other engineering disciplines.

• Typically requires a minimum of 2 years of building mechanical engineering or related experience.
• Typically certified in the SMS Framework, and progressing through the SMS competencies.

• A bachelor’s degree in mechanical engineering or related field or equivalent experience is required.
• Has passed or is working towards passing the Fundamentals of Engineering exam required for Engineer in Training registration.

• Location A: $78,000 - $106,000
• Location B: $85,000 - $116,000

• Medical
• Dental
• Vision
• Short and long-term disability
• Life insurance
• An employee assistance program
• Paid time off and parental leave
• Paid holidays
• 401(k) retirement savings plan with employer match
• Performance-based bonus eligibility
• Employee referral bonuses
• Tuition reimbursement
• Pet insurance
• Long-term care insurance

Headquartered in Walnut Creek, California, Brown and Caldwell is a full-service environmental engineering and construction services firm with 50 offices and over 2,100 professionals across North America and the Pacific. For more than 75 years, we have created leading-edge environmental solutions for municipalities, private industry, and government agencies. We strive to be the company of choice—to our clients, who benefit from our passion for delivering exceptional quality, and to our employees, present and future, who share our commitment to client service, collaboration, and innovation.

Join us, and you will find a home where you can do your best work, reach new levels of expertise, and enjoy exceptional development opportunities. For more information, visit

This position is subject to a pre-employment background check and a pre-employment drug test.

Brown and Caldwell is proud to be an EEO/AAP Employer.

Brown and Caldwell encourages protected veterans, individuals with disabilities, and applicants from all backgrounds to apply.

Brown and Caldwell ensures nondiscrimination in all programs and activities in accordance with Title VI of the Civil Rights Act.