Water Engineer Intern

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.

We are currently seeking a Water Engineer Co-Op or Intern to join our Water Business Line in our Middletown, CT office in Fall 2026.

We work to protect our natural environment and water resources, while powering our world for future generations. Around the world, we’re feeling the effects climate change, rapid urbanization, loss of biodiversity. The rate at which we’re seeing large-scale, unforeseen events such as floods and wildfires, is becoming more frequent. We are here to protect our natural environment and water resources, while powering our world for future generations.

As a Water Engineer Co-Op/Intern, you will have the opportunity to gain valuable hands-on experience in various aspects of water engineering projects. Your role will involve evaluating, planning, designing, and supporting the management of projects related to water/wastewater/stormwater treatment and conveyance, including pipelines and pumping facilities. You will also be involved in assessing, developing, and supporting the management of sustainability and resilience projects, which include vulnerability and mitigation assessments, as well as planning and design for utilities, municipalities, and cities.

Fieldwork activities will be an integral part of your experience, where you will have the chance to conduct site visits, perform sampling, conduct water quality analyses, evaluate technologies, gather plant operations information, troubleshoot processes, and optimize systems.

In addition, you will be responsible for the following:

Support preparation of reports, presentations, and other audio-visual materials, and participate in client meetings. Ensure project compliance with all Arcadis practices and quality, health and safety standards, and facilitate coordination for timely completion and submission of projects on time and budget. Work independently and as part of a team, with the flexibility to accommodate collaboration with team members across the U.S. and internationally. Learn and use digital tools to enhance customer experience, team and client collaboration, and project delivery including configuration and deployment of SharePoint, Building Information Modeling (BIM), Power BI, and Augmented Reality.

What skills do you need?

Strong attention to detail, organization skills, and work ethic The initiative and ability to take on new projects and other challenges regularly. Excellent communication skills, both written and verbal. Self-motivated, team-oriented and flexible, with the ability to balance and address new challenges as they arise Exceptional analytical and problem-solving skills. Knowledge of engineering concepts, theories, and practices related to water/wastewater/stormwater. Proficient in Microsoft Office Excel, Word, and PowerPoint.

Pursuing a BS in Civil, Environmental, or Water Resources Engineering, or another closely related academic discipline. At least 16-20 hours of weekly availability during the fall semester (August - December 2026)

Prior internship or coursework in water/wastewater, water resources, or related sectors.

Why Arcadis? We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It’s why we are pioneering a skills-based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together. You’ll do meaningful work, and