Water/Wastewater Process Engineer (PE)

Tetra Tech, Inc.; Orlando (FL); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Benefits package

Merit-based rewards

Work-life balance

Learning & development

Job summary

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

The role encompasses process design, technology evaluation, hydraulic analysis, and equipment selection within multidisciplinary teams. You will contribute to upgrades, advanced treatment, and regulatory compliance while mentoring junior staff.

Qualifications

• Bachelor's degree in Civil, Environmental, Chemical Engineering or a closely related field.
• Professional Engineer (PE) registration is required.
• Minimum 4 years of relevant municipal water/wastewater design or evaluation experience.
• Experience performing process calculations, creating process flow diagrams, and evaluating sizing of treatment equipment.
• Familiarity with regulatory requirements and permitting processes for water/wastewater facilities.

Responsibilities

• Perform process engineering and design for municipal water and wastewater facilities, including equipment sizing and design criteria.
• Prepare and review calculations, PFDs, hydraulic profiles, schematics, memos, and design reports.
• Support design and evaluation of drinking water treatment processes (coagulation, filtration, disinfection) and wastewater processes (biological treatment, nutrient removal).
• Conduct process modeling, performance evaluations, and analyses to support planning and optimization.
• Evaluate treatment alternatives and emerging technologies for sustainable solutions.
• Coordinate with project teams, clients, and regulators; contribute to drawings, specs, and cost estimates.

Skills

Process design

Hydraulic analysis

Project coordination

Education

Bachelor's degree in Civil/Environmental/Chemical Engineering

Tools

Process modeling software

Job description

The Opportunity

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.

Why Tetra Tech:

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.

Your Impact:

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.

Position Summary

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.

Essential Job Functions

• 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 engineering solutions.
• Contribute to the preparation of construction drawings, technical specifications, equipment schedules, and cost estimates in coordination with civil, mechanical, electrical, and instrumentation and controls (I&C) teams.
• Participate in pilot studies, facility assessments, field investigations, process troubleshooting, and treatment plant startup and commissioning activities.
• Coordinate with project managers, discipline leads, clients, and regulatory agencies to support project development and delivery.
• Review engineering deliverables for technical accuracy, consistency, and compliance with applicable design standards and regulatory requirements.
• Assist with proposal preparation, technical approach development, and level-of-effort estimates for new project opportunities.
• Provide technical guidance and mentorship to junior engineers and engineering staff.

Required Qualifications

• Bachelor's degree in Civil Engineering, Environmental Engineering, Chemical Engineering, or a closely related engineering discipline.
• Registration as a Professional Engineer (PE).
• Minimum of 4 years of relevant engineering experience in municipal water and/or wastewater treatment process design, facility planning, or treatment system evaluation.
• Demonstrated experience performing process engineering calculations, developing process flow diagrams, preparing design criteria, and evaluating or sizing treatment equipment.
• Working knowledge of drinking water and/or wastewater treatment processes and associated engineering design principles.
• Experience preparing technical reports, engineering studies, design documents, or construction specifications.
• Familiarity with applicable regulatory requirements and permitting processes for drinking water and/or wastewater treatment facilities.
• Ability to collaborate with multidisciplinary engineering teams and manage technical responsibilities across multiple projects.
• Strong analytical, problem-solving, written communication, and organizational skills.
• Valid driver's license and acceptable driving record consistent with company requirements for employees who operate vehicles as part of their job duties.

Physical Requirements

• While performing the duties of this position, the employee may be required to:
• Sit, stand, and use standard office equipment for extended periods.
• Lift and carry up to 25 pounds occasionally.
• Walk on uneven terrain and navigate active construction sites safely.

Work Environment/Environment Factors

• This position primarily operates in an office setting with hybrid flexibility.
• Occasional travel to project sites, client meetings, or field locations may be required.
• Site visits may involve exposure to outdoor weather conditions, construction sites, and active infrastructure environments.

Additional Information

This position offers a hybrid work schedule with flexibility to balance office collaboration and remote work.

Life at Tetra Tech

The perks of working at Tetra Tech include:

• Comprehensive and market-competitive benefits.
• Merit-based financial rewards.
• Flexibility and company-wide commitment to work/life balance.
• Collaborative team atmosphere that values the contributions of all employees.
• Learning and development opportunities for ongoing professional growth

About Tetra Tech:

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science ® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sexual orientation, gender identity, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.

We invite applications from all interested parties.

• Organization: 200 IEW