Wastewater Treatment Engineer - Water + Environment Market

Gresham Smith • Nashville, TN

17d

About The Position

Gresham Smith is seeking a Water/Wastewater Treatment Engineer to join our team, with a focus on delivering high-impact projects for municipal and industrial clients across the Southeast. This role offers the opportunity to lead the planning, design, and implementation of water and wastewater treatment facilities that help our clients meet regulatory challenges, improve system reliability, and plan for future growth. You’ll work alongside a multidisciplinary team of engineers and designers dedicated to technical excellence, client service, and advancing sustainable infrastructure solutions.

Requirements

• Bachelor’s degree in Environmental, Civil, or Chemical Engineering (Master’s preferred).
• Professional Engineer (P.E.) license in applicable Southeastern states.
• 10+ years of experience with a primary focus on municipal water and wastewater treatment facility design.
• Strong knowledge of process design principles, equipment selection, and regulatory compliance.
• Proficiency with Microsoft Office; working knowledge of AutoCAD and process modeling software (e.g., BioWin, GPS-X) preferred.
• Excellent written and verbal communication skills, including the ability to work collaboratively across teams and with clients.

Responsibilities

• Lead the planning and design of municipal water and wastewater treatment facilities, including plant upgrades, expansions, and regulatory-driven improvements.
• Prepare and review process designs, technical calculations, drawings, specifications, and cost estimates for treatment projects.
• Apply sound engineering judgment in selecting and optimizing unit processes, including physical processes, chemical treatment, biological processes, disinfection, and solids handling.
• Conduct and/or manage process modeling and analysis using tools such as BioWin or similar platforms to support design decisions.
• Prepare and review planning and design-level technical reports, including alternative analyses, basis of design reports, and technical memoranda in support of design decisions.
• Support construction-phase services, including reviewing submittals, responding to RFIs, and participating in startup and commissioning activities.
• Collaborate with internal and external multidisciplinary teams (civil, electrical, structural, mechanical) to deliver fully coordinated design packages.
• Serve as a technical mentor to junior staff and contribute to strong, long-term client relationships.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 501-1,000 employees