Water​/Wastewater Process Engineer; PE

Tetra Tech is seeking a Water/Wastewater Process Engineer (PE) to support the planning, evaluation, and design of municipal water and wastewater treatment facilities across Florida and beyond.

From treatment plant upgrades and process optimization to advanced treatment technologies and emerging contaminant solutions, this position offers an opportunity to tackle complex engineering challenges that directly impact public health and the environment.

You’ll work alongside multidisciplinary engineering teams on a variety of treatment projects, contributing your technical expertise in process design, treatment technology evaluation, hydraulic analysis, and equipment selection. This is an opportunity for an engineer who enjoys solving technical problems, exploring innovative treatment solutions, and remaining actively involved in engineering design.

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development.

Our work has improved more than 625 million lives around the world.

Join Tetra Tech to make a real difference. Our work leverages cutting‑edge technologies, advanced analytics, and the expertise of world‑class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

The Water/Wastewater Process Engineer will play a key technical role in the planning, evaluation, design, and optimization of municipal water and wastewater treatment facilities. This position involves hands‑on engineering, including process calculations, treatment technology evaluations, process modeling, equipment sizing, and development of detailed design documents.

Working alongside multidisciplinary engineers and project managers, the successful candidate will develop practical, cost‑effective treatment solutions that meet regulatory requirements, operational needs, and client expectations.

This opportunity is ideal for a technically focused engineer who enjoys working through complex treatment challenges, collaborating with experienced professionals, and continuing to develop expertise in water and wastewater treatment processes.

The following duties are considered essential to the role. Reasonable accommodations may be made to enable individuals with disabilities to perform these essential functions.

• Perform process engineering and design for municipal water and wastewater treatment facilities, including process evaluations, treatment technology selection, equipment sizing, and development of process design criteria.
• Prepare and review engineering calculations, process flow diagrams, hydraulic profiles, process schematics, technical memoranda, design reports, and supporting documentation.
• Support the design and evaluation of drinking water treatment processes, such as coagulation, flocculation, sedimentation, filtration, disinfection, and advanced treatment technologies.
• Support the design and evaluation of wastewater treatment processes, including biological treatment, nutrient removal, clarification, disinfection, and solids handling.
• Perform process modeling, treatment performance evaluations, and technical analyses to support facility planning, design, and optimization.
• Evaluate treatment alternatives, process equipment, and emerging technologies to identify effective and sustainable…