Civil/Water/Wastewater Engineering Intern or Engineer-in-Training (EIT)

The Opportunity

Tetra Tech is seeking a Civil/Water/Wastewater Engineering Intern or Engineer-in-Training (EIT) to join our team in Estero, Florida.

The successful candidate will support our engineering team on a variety of municipal water and wastewater infrastructure projects, including water distribution systems, wastewater collection and conveyance systems, pump stations, storage and treatment facilities, and infrastructure improvements.

This opportunity is ideal for current students, recent graduates, and early-career engineers interested in gaining hands-on experience in civil and water/wastewater engineering. You'll work alongside experienced engineers and project managers, contributing to projects that help communities upgrade aging infrastructure, expand essential utilities, and develop sustainable solutions for safe and reliable water systems.

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 Civil/Water/Wastewater Engineering Intern or EIT will support the planning, design, permitting, and construction phases of municipal water and wastewater infrastructure projects. Working under the guidance of experienced engineers, this position provides opportunities to develop technical skills in engineering design, hydraulic analysis, project documentation, and field activities.

This position is designed to help students and early-career engineers apply engineering principles to real-world infrastructure challenges while developing a strong technical foundation in civil and water/wastewater engineering.

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.

• Assist with the planning and design of municipal water and wastewater infrastructure, including water distribution systems, sanitary sewer collection and conveyance systems, pump stations, and treatment facilities.
• Perform engineering calculations and technical analyses related to water distribution, wastewater collection, hydraulic systems, and related civil infrastructure.
• Support the preparation of engineering drawings, technical specifications, design reports, cost estimates, and construction documents.
• Assist with evaluating existing infrastructure, design alternatives, and potential engineering solutions.
• Support hydraulic modeling and analysis of water and wastewater systems under the guidance of experienced engineers.
• Conduct research related to engineering standards, codes, permitting requirements, and regulatory guidelines.
• Assist with the preparation of technical memoranda, engineering reports, permit applications, and supporting project documentation.
• Develop charts, figures, maps, tables, and other materials to support engineering deliverables.
• Participate in field investigations, site visits, and construction observation activities alongside experienced engineers.
• Assist with quality assurance and quality control reviews of engineering drawings and technical documents.
• Collaborate with engineers, designers, and project managers throughout various phases of project development.

Required Qualifications

• Currently pursuing or recently completed a Bachelor's degree in Civil Engineering, Environmental Engineering, or a closely related engineering discipline.
• 0–2 years of relevant engineering experience, including internships, academic projects, or related coursework.
• Interest in municipal water and wastewater engineering, utility infrastructure, and civil design.
• Basic understanding of engineering design principles, calculations, and technical documentation.
• Strong analytical, problem-solving, and organizational skills.
• Ability to communicate effectively and work collaboratively in a team environment.
• Familiarity with Microsoft Word and Excel.

Preferred Qualifications

• Coursework, internship, or project experience related to water resources, hydraulics, municipal water/wastewater systems, or civil infrastructure.
• Engineer-in-Training (EIT) certification or plans to pursue certification upon eligibility.
• Familiarity with AutoCAD or AutoCAD Civil 3D.
• Exposure to hydraulic modeling software such as WaterGEMS, SewerGEMS, EPANET, or similar programs.
• Basic understanding of water distribution systems, wastewater collection systems, pump stations, or water and wastewater treatment processes.
• Familiarity with engineering design, permitting, construction documents, or cost estimating.
• Previous internship or hands-on experience in civil, environmental, or municipal engineering is a plus but not required.

Physical Requirements

• Ability to perform fieldwork in varying weather conditions and on uneven terrain.
• Ability to walk, stand, and perform light to moderate physical activity, including occasional lifting up to 25–50 pounds.
• Ability to operate standard office equipment and engineering software for extended periods.

Work Environment / Environmental Factors

• Combination of office and outdoor project site settings.
• Exposure to variable weather conditions during site visits.
• Moderate noise levels in office and field environments.
• Use of appropriate personal protective equipment (PPE) as required.

Life at Tetra Tech

The perks of working at Tetra Tech include:

• Comprehensive and market-competitive benefits for eligible employees.
• 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.