Wastewater Intern -Summer 2025 - Seattle, WA

Embrace Your Possibilities: At Brown and Caldwell, an environmental engineering firm, we’re unlocking the potential of water and healthy environments to create thriving communities. Delivering on this shared purpose starts with our people: We recruit sharp, enthusiastic talent at the earliest levels of their career to build a strong foundation for the future. Through an internship at Brown and Caldwell, you’ll gain real-life, hands-on experience alongside our employee owners, engineers, scientists, consultants, and constructors who are driving positive change for our clients and communities. Here you’ll find opportunity for impact, community that lifts, support to thrive, and trust in you as you embark on your career journey.

So, what’s possible for you?

Brown and Caldwell has an opportunity for a wastewater treatment intern to spend a summer working with our wastewater team to support our Seattle office. We are seeking a motivated, achievement-oriented individual who wants to spend their summer gaining practical, hands-on experience outside of the classroom. We promise a collaborative environment where you will grow as a young professional under the guidance of your supervisor and team and be trusted to support project objectives. Our work is interesting, challenging, wide-ranging in nature, and impactful for the communities we live in. We invite you to embrace your possibilities and join us to learn and develop with our team of nationally recognized experts!

Detailed Description: Brown and Caldwell is looking for a summer intern to assist the wastewater treatment group in Washington with planning and design projects in biological wastewater treatment. 

How Will You Make an Impact?

Interns at Brown and Caldwell make a daily, material impact by completing support duties to advance their team’s projects and objectives. They receive professional training and the support of their team. Interns can expect to be onboarded, mentored, and developed by industry leaders to develop real-life skills and make an impact on their assigned projects. Projects this role may work on include:

• Field work to support testing of equipment and processes
• Analysis of plant operating data
• Modeling of biological processes
• Planning and layout development of wastewater processes
• Cost development
• Equipment research and manufacturer coordination

As a wastewater intern, you can expect your experience to include the following:

• Work closely with project managers and other team members to execute work involving conventional types of civil, environmental, and/or mechanical engineering principals and other related activities for water and wastewater treatment and conveyance projects.
• Communicate effectively and coordinate with project teams including other disciplines (e.g., drafters, designers, and other engineers).
• Assist with the preparation of calculations, technical memoranda, reports, presentations, drawings, specifications, and miscellaneous contract documents.
• Perform data entry, analysis, and visualization.
• Participate in field work, as needed for projects.
• Successfully manage and deliver assignments on time.
• Adhere to Brown and Caldwell’s quality assurance/quality control process.

Work schedule and location:  Hybrid work schedule: 3 days in office at Seattle Office, Up to 2 days remote, occasional field work

Desired Skills and Experience:

To qualify for an internship, you must be enrolled in a full-time program (minimum nine credit hours per semester) seeking a degree in engineering, science, geology, or a related field. You also must be in good standing and carry an overall GPA of at least 3.0 in your core curriculum, as well as a minimum overall GPA of 3.0.

What Must Our Candidate Have? (Required)

• Must be enrolled in a wastewater treatment or environmental engineering program within the United States
• Must be at least in or have completed your third year of engineering at an accredited university, or higher. Graduate school candidates preferred.

What Will Our Ideal Candidate Look Like? (Preferred)

• General knowledge of the wastewater treatment process
• General knowledge of mass transfer
• The candidate must be in good academic standing with their university and carry both a cumulative and core curriculum GPA of at least 3.0

Salary Range: The hourly pay range for this position is based on the employee’s primary work location and may be more or less depending upon skills, experience, and education.  These ranges may be modified in the future.

Location C:
Hourly $22.00 – $30.20

You can view which BC location applies to you here. If you have any questions, please speak with your Recruiter.

Benefits and Other Compensation:  We provide a comprehensive benefits package that promotes employee health, performance, and success which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time off and parental leave, paid holidays, 401(k) retirement savings plan with employer match, performance-based bonus eligibility, employee referral bonuses, tuition reimbursement, pet insurance and long-term care insurance. Click here to see our full list of benefits.

About Brown and Caldwell

Headquartered in Walnut Creek, California, Brown and Caldwell is a full-service environmental engineering and construction firm with 50 offices and 2,100 professionals across North America and the Pacific. For 75 years, we have created leading-edge environmental solutions for municipalities, private industry, and government agencies. We strive to be the company of choice—to our clients, who benefit from our passion for delivering exceptional quality, and to our employees, present and future, who share our commitment to client service, collaboration, and innovation. Join us, and you will find a home where you can do your best work, reach new levels of expertise, and enjoy exceptional development opportunities. For more information, visit www.brownandcaldwell.com

This position is subject to a pre-employment background check and a pre-employment drug test.

Notice to Third Party Agencies: Brown and Caldwell does not accept unsolicited resumes from recruiters or employment agencies. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement and approved engagement request with Brown and Caldwell, Brown and Caldwell reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.  

Brown and Caldwell is proud to be an EEO/AAP Employer.  Minorities/Women/Disabled and Protected Veterans are encouraged to apply.  Brown and Caldwell ensures nondiscrimination in all programs and activities in accordance with Title VI of the Civil Rights Act of 1964.

#2025internship

Salary : $22 - $30