Water/Wastewater Engineering Intern

Water/Wastewater Engineering Intern Job Locations US-WA-Seattle ID 2026-4682 Category Engineering Type Temporary Overview Carollo Engineers is a leading engineering firm dedicated exclusively to water. For over 90 years, we've specialized in the planning, design, and construction of water, wastewater, stormwater, and reuse facilities, bringing innovative and sustainable solutions to the water sector's most complex challenges. We work with water agencies, municipalities, utilities, research organizations, and private companies across various industries, including technology, manufacturing, and beyond. These clients choose Carollo because we employ some of the most knowledgeable and experienced professionals in the world. When you join our team, you'll work alongside industry leaders who are advancing the science of water, protecting public health, and building resilient communities. Carollo's vision is to be the best water consulting firm and the best place for you to build your career. If you're passionate about making a difference in this critical field, we invite you to explore a career with Carollo. Responsibilities We are seeking a water / wastewater engineering intern to support Carollo’s vision. As part of our team, you will work on projects related to municipal water and wastewater treatment plants, including but not limited to major treatment plant expansions, studies, and critical projects to help create sustainable and resilient environment for our community. Responsibilities include: Performing engineering work in water / wastewater treatment and conveyance infrastructure. Work on engineering planning and design projects. Prepare reports. Develop plans and specifications. Prepare cost estimates for various projects. Hydraulic system modeling. Development of alternative analysis of design options. Preparation of technical memoranda, reports and electronic deliverables. Qualifications Highly motivated, articulate and self-starter. Application of engineering principles including critical thinking, analysis and innovative techniques Strong verbal and written communication skills. Work well in a team environment. Have the ability to communicate effectively with peers and mentors. Enrolled or completed sophomore year of civil or environmental engineering degree program. Coursework in the field of environmental engineering with an emphasis in hydraulics, physical, chemical, and biological treatment processes and treatment plant design. Preferred Qualifications Experience and/or coursework in water/wastewater treatment and conveyance Previous related internship experience a plus, but not required Knowledge and experience in water chemistry and regulations. Compensation Range $22.00 to $29.00 per hour. This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee’s pay within the salary range will be based on several factors including, but limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Options Apply for this job online Apply Share Email this job to a friend Refer Sorry the Share function is not working properly at this moment. Please refresh the page and try again later. Share on your newsfeed EOE including disability/veteran Application FAQs Software Powered by ICIMS www.icims.com