Process Mechanical Engineer
Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Sep 24, 2026. Brown and Caldwell scores B on the Alion truth index.
Brown and Caldwell (BC), a leading, employee-owned environmental engineering firm, is currently seeking a Process Mechanical Engineer to join our Design Services National Mechanical Discipline team. The ideal candidate will have proven strength in process mechanical engineering design of water and wastewater treatment processes, process piping systems, aeration, pumping / hydraulics analysis, and pipe supports as it pertains to industrial plant design of equipment, piping and controls for industrial water treatment applications (e.g., wastewater, reclaimed, potable water, groundwater, zero liquid discharge and surface water) for a variety of industries including: energy/chemicals/power, food/pharmaceutical, manufacturing, mining/solids waste and technology.
The Process Mechanical Engineering role will take on responsibilities in the design and construction phase support of process-mechanical elements in environmental infrastructure projects. The role will lead simple and provide assistance for complex discrete process-mechanical elements in the conceptual design, preliminary design, and final design phases. Duties include preparing calculations to size and select equipment, piping, and piping ancillaries. The role will lead simple and help lead complex coordination of interdisciplinary efforts with architects, structural engineers, electrical and instrumentation and controls engineers, and building-mechanical engineers to develop final design drawings and specifications for process-mechanical elements. The role will also help direct BIM professionals in creating complex 3D models for construction contract drawings for process-mechanical elements. The role will perform submittal reviews, respond to contractor inquiries, and provide site observations for process mechanical elements during the construction phase.
Responsibilities
- Lead the design of simple process-mechanical elements.
- Lead in preparing simple calculations for and selection of piping and equipment as per project requirements.
- Lead the coordination of interdisciplinary teams to develop comprehensive solutions for simple design elements.
- Lead the guidance of BIM professionals for creating accurate and efficient 3D models and contract design documents for simple design elements.
- Lead the review of simple construction phase submittals to ensure adherence to project specifications.
- Lead the response to simple contractor requests for information during the construction phase.
- Lead site observations during the construction phase for simple design elements.
- Flexibility to adapt and execute various additional assignments based on evolving needs.
Mentorship
- May provide mentorship, guidance, support, and knowledge-sharing to help less experienced team members develop their skills and grow within their roles.
Skills and Competencies
- Proficient use of word processing and spreadsheet-based software tools.
- Intermediate understanding of process mechanical engineering principles and practices.
- Intermediate analytical skills in evaluating and designing processes for infrastructure projects.
- Basic use of process-mechanical software analysis tools.
- Ability to work well with interdisciplinary teams.
- Basic understanding of the construction process for environmental infrastructure projects.
Experience
- Typically requires minimum of 2 years of process mechanical engineering or related experience.
- Experience in coordinating with interdisciplinary teams required.
- Typically will become certified in BC's Subject Matter Specialist (SMS) Framework and progress through the SMS competencies.
Preferred Experience
- 4+ years of process mechanical engineering or related experience.
- Prior design experience with pumping, water and wastewater treatment equipment, aeration and plant air compressor/blowers, piping system design, pressure control/relief, and development of technical specifications.
- Strong project or task management skills.
- Successful technical writing skills.
- Knowledgeable of AFT Fathom and Visual Hydraulics software applications and use.
- Experience working in BIM collaboration tools (BIM 360 and Navisworks).
Education
- A bachelor’s degree in civil, environmental, chemical, or mechanical engineering or related field or equivalent experience is required.
- Engineer in Training (EIT) License.
Salary Range: The anticipated starting pay range for this position is based on the employee’s primary work location and may be more or less depending upon skills, experience, and education. These ranges may be modified in the future.
Location A: $78,000 - $106,000
Location B: $85,000 - $116,000
Location C: $93,000 - $127,000
You can view which BC location applies to you here. If you have any questions, please speak with your Recruiter.
Benefits and Other Compensation: We provide a comprehensive benefits package that promotes employee health, performance, and success which includes 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 and long-term care insurance. Click here to see our full list of benefits.
About Brown and Caldwell
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 www.brownandcaldwell.com
Learn more about our work:
Climate Change and Resilience - Brown and Caldwell
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Emerging Contaminants and PFAS - Brown and Caldwell
Digital Solutions - Brown and Caldwell
Industrial Water - Brown and Caldwell
This position is subject to a pre-employment background check and a pre-employment drug test.
Notice to Third Party Agencies: Brown and Caldwell does not accept unsolicited resumes from recruiters or employment agencies. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement and approved engagement request with Brown and Caldwell, Brown and Caldwell reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.
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.