Intern Wastewater Treatment summer 2027

Jacobs; Denver (CO); Hybrid; USD 61,000 - 106,000; Full time

Job summary

Jacobs is seeking a motivated Wastewater Treatment Engineering Intern to join projects in Tempe/Phoenix, AZ and Denver, CO. You will work alongside experienced wastewater engineers on studies, designs, and field assignments, gaining hands-on experience in water treatment processes and pilot-scale systems.

You will learn to analyze problems, communicate technical solutions, and contribute to construction documents while developing a strong technical foundation for future engineering roles.

Qualifications

• Knowledge of engineering principles related to water and wastewater treatment systems.
• Authorization to work in the United States without visa sponsorship.
• 0-2 years of relevant experience in water, wastewater or related engineering projects.
• Enrollment in a degree seeking program in Civil, Environmental or Chemical Engineering or another closely related field.

Responsibilities

• Support evaluations of treatment and process alternatives for client challenges.
• Assist with the design and implementation of pilot-scale treatment systems.
• Assist in planning and design of full-scale treatment systems and plant improvements.
• Develop facility layouts and P&IDs under guidance of senior engineers.
• Contribute to construction documents, drawings and specs.
• Support equipment, pumping systems, piping, and valves selection.

Skills

Water/wastewater knowledge

Education

Civil/Environmental/Chemical Engineering

Job description

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact

We challenge what is currently accepted, so we can shape innovative and lasting solutions for tomorrow. If you're looking to gain hands-on engineering experience with one of the industry's most innovative and respected engineering firms, Jacobs is where you belong.

We are seeking a motivated and curious Wastewater Treatment Engineering Intern to support projects in Tempe/Phoenix, AZ and Denver, CO. As an intern, you will work alongside experienced wastewater engineers and designers on studies, designs, and field assignments while developing your technical skills and industry knowledge. Your work will primarily focus on wastewater treatment projects, with opportunities to support a variety of process initiatives.

As part of our collaborative team, you will assist with

• Supporting evaluations of treatment and process alternatives to help address client challenges
• Learning to analyze engineering problems and communicate technical solutions effectively
• Assisting with the design and implementation of pilot-scale treatment systems
• Supporting the planning and design of full-scale treatment systems and treatment plant improvements
• Assisting in the development of facility layouts and process & instrumentaion diagrams (P&IDs)
• Contributing to the preparation of construction documents, including drawings and specifications
• Assisting with the evaluation and selection of process equipment, pumping systems, pipe materials, and valves
• Performing data analysis and supporting computer modeling efforts
• Assisting with technical report preparation and documentation
• Providing support during construction and startup activities
• Participating in field inspections of treatment and equipment under the guidance of senior engineers

Through mentorship, structured learning, and exposure to a variety of projects, you will have the opportunity to apply classroom knowledge in a professional environment, build a strong technical foundation, and gain valuable experience while helping deliver innovative solutions for our clients and communities.

This position is not eligible for employer-sponsored work authorization now or in the future. Candidates must be legally authorized to work in the United States at the time of application and maintain such authorization throughout their internship without employer sponsorship.

Here's what you'll need

• Enrollment in a degree seeking program in Civil, Environmental or Chemical Engineering or another closely related field.
• Authorization to work in the United States without the need for visa sponsorship, now or in the future
• 0-2 years of relevant experience in water, wastewater or related engineering projects
• Knowledge of engineering principles related to water and wastewater treatment systems.

The ideal will also have

• Previous intern experience with a consulting or engineering firm focused on water/ wastewater/ water resources
• Relevant coursework or projects focused on water/wastewater/ water resources
• Engineer-in-Training (EIT) certification or ability to obtain within one year of hire
• Understanding of pumps, valves, piping systems, treatment equipment, and related systems.

Our health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Employees have access to a 401(k) plan, as well as legally mandated benefits.

The base salary range for this position is $91,400.00 to $159,900.00; though will be paid hourly based on hours worked. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

Job posted on October 18, 2026. This position will be open for at least 3 days.

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support.