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Brown and Caldwell is the largest engineering firm of its kind—solely focused on the U.S. environmental sector. With offices throughout the country, we have opportunities nationwide to work on some of our most exciting environmental projects.

Senior Process Mechanical Engineer

Work Location: Houston, Texas, Nashville, Tennessee
ID: 2940
Job Type: Full Time
Travel: 25%

For more than 70 years, Brown and Caldwell has been creating leading-edge environmental solutions for public agencies and private industry. We strive to be the environmental 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. As a privately held firm with over 1,500 employee-owners in 50+ offices nationwide, the opportunity awaits for you to advance.


Are you ready to take the next step in your career? Are you an individual who takes pride in delivering exceptional work? Are you looking for a way to make a difference? As a privately held, employee-owned firm with offices nationwide, the opportunity awaits for you to advance. When you join Brown and Caldwell you will enjoy a unique and welcoming culture. You will find that we offer a non-hierarchical, collaborative, and supportive environment, allowing you to do your best work. You will be trusted to do the right thing by our project managers and external clients and given the flexibility to manage your own schedule to achieve this. The work we do is interesting, challenging and wide-ranging in nature, and so is our client base.

Job Expectations:

The ideal candidate will have project management and technical skills experience in planning and/or designing large engineering projects, with both industrial and municipal wastewater processes and the troubleshooting of those treatment systems. Prior experience with water/wastewater planning, design, permitting, and construction engineering activities is desired.  We are seeking a candidate who has a positive, can-do attitude and will be flexible and self-motivated, well organized, and quality oriented with attention to detail. In this position some travel will be required. This position can be located in our Houston, TX or Nashville, TN office.  

Position Profile

Our Design Services Group is currently seeking a Process Mechanical Wastewater Engineer with an interest and familiarity with mechanical engineering as it pertains to industrial and municipal plant design (equipment, piping and controls) for the water industry (wastewater, potable water and surface water). 

Typical work areas include:

  • Pumping and hydraulics for liquids, slurries, and viscous fluids
  • Open channel flow hydraulics
  • Fluid dynamics and design of air and gas distribution and diffusion systems
  • Compressor selection and design
  • Tank and tank mixing analysis and design
  • Tank, pipe, and structure heat loss
  • Heat exchanger design
  • Equipment system controls – P&ID’s
  • Thermal processing equipment – hot water and steam
  • Piping design and expertise – materials, layout, support, anchorage, expansion control
  • Valving
  • Water industry chemical and disinfection systems


  • Manage and execute work on wastewater and water utilities including treatment plant, pumping station, and bio-system facility planning and design.
  • Perform technical research, and be able to communicate and apply this knowledge.
  • Lead project team in planning and/or designing a major engineering project and coordinate special planning, economic, and engineering studies.
  • Provide consultation in specialized areas related to efficient design management for treatment plant, pumping station, and bio-system facility planning and design. Make decisions and solve problems.
  • Participate in improving company resources and tools to improve design production and efficiency.
  • Prepare and make presentations to clients and for professional meetings
  • Direct the work of drafters and designers, coordinate with other disciplines
  • Supervise, delegate, and oversee the work of entry level technical staff and engineers
  • Coach and mentor junior engineers and designers.
  • Provide input to project budgets for proposal work

Position Requirements

  • B.S. degree in Mechanical, Civil/Environmental, or Chemical Engineering; M.S. preferred
  • Project management experience desired, but not required
  • 6 + years of professional experience
  • Technical experience should include:  piping design, familiarity with biological process design, design of fluid dynamics and pumping systems, and ability to research equipment and technologies. 
  • Professional Engineer (PE) License
  • Strong written and verbal communication skills with demonstrated ability to conduct effective presentations and prepare written reports and documents

Join, Grow, Have Fun

We’re growing and having fun while doing it. Brown and Caldwell provides a comprehensive benefits program and a culture that promotes employee performance and success. We recognize that you are looking for a career path with opportunities to grow personally and professionally. We have a strong focus on employee development and offer defined advancement through our Career Path Framework; tuition reimbursement; honorariums for papers and presentation as well as project management training (BC is a PMI Registered Education Provider). Our work environment promotes a flexible and collaborative culture, an extensive knowledge-sharing infrastructure and more. Our values of working hard and with integrity combined with learning, growing and having fun make Brown and Caldwell your employer of choice.

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-Minorities/Women/Disabled/Protected Veterans are encouraged to apply.  

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