Water Engineering Internship

At Mott MacDonald, we believe engineering is about more than solving problems; it is about shaping a future that is inclusive, resilient, and sustainable. As we expand across the US and Canada, we are inviting passionate individuals to join a purpose-driven journey powered by brilliant people. As trusted consultants, we partner with clients to solve complex challenges, deliver sustainable solutions, and create lasting impact for the communities they serve.

From the moment you join our team, you will work alongside experienced engineering consultants, project managers, subject matter experts, mentors, and peers who champion integrity, teamwork, excellence, and innovation. You will build your technical skills while developing the mindset of a consultant; contributing to meaningful work, collaborating to achieve better outcomes, and growing with support every step of the way. As a participant in Prelaunch, our summer internship program, you will embark on a structured three-month development journey that provides the foundational building blocks for starting a successful career at Mott MacDonald. Your responsibilities may include: Designing engineering solutions

Conducting site inspections and monitoring

Joining project and client meetings

Refining technical designs and documentation

Analyzing reports and specifications

Exploring project and client management

Leveraging digital tools and innovation

Driving sustainable outcomes

Building connections through our Early Career Professionals Network

To be considered for this 2027 opportunity, here’s what you’ll need: Progress towards a Bachelor’s or Master’s Degree in Civil Engineering, or related field

Demonstrated interest in your chosen field through previous internships, volunteering opportunities, or organization memberships

Creative thinking skills, with a methodical and pragmatic approach to problem solving

Proficient communication and presentation skills to engage confidently with clients and colleagues

Resilient, solution-oriented mindset, with a focus on continuous growth and delivering value

Ability to build and maintain relationships and rapport with internal and external stakeholders

Collaborative spirit and commitment to teamwork

This position is located in Iselin, NJ. You must be able to reliably commute to our office in this location, per our hybrid working policy.

Here’s an overview of what to expect this recruitment season: August 2026 – Application Window Opens

November 30, 2026 – Application Window Closes

December 1, 2026 – January 31, 2027 – Interviews

February 1, 2027 – March 31, 2027 – Hiring Decisions Finalized

June 14, 2027 – Internship Program Kick-off

August 20, 2027 – Internship Program Conclusion

Build your career while helping shape what comes next.

At Mott MacDonald, you will be encouraged to explore your potential, share your ideas, and make meaningful contributions from the start. Learning and development experiences that support your career goals Dedicated mentorship and guidance from experienced professionals Employee Resource Groups that help build connection and community Meaningful opportunities to learn, contribute, and grow every day Bring your curiosity, compassion, and drive to make a difference. If you are ready to join a collaborative engineering consultancy where your perspective is valued, your development is supported, and you are empowered to lead with integrity, we would love to hear from you. Applicants must be authorized to work for any employer in the US, as Mott MacDonald is unable to provide sponsorship at this time. Benefits & Rewards Eligible interns may participate in Mott MacDonald's 401(k) retirement savings plan and gain valuable hands-on experience, mentorship, and professional development while working on meaningful projects. The expected salary for this position is $18 - $35 /hr Individual pay is determined based on several factors such as work location, education, experience, and unique skills. Collaboration at Our Core At Mott MacDonald, we believe great ideas happen when we’re together. Our hybrid approach centers on an in-office culture, with most of your time spent collaborating face-to-face and a minimum of three days per week in the office. We balance flexibility with connection, so you and your manager can choose how to meet client, team, and personal commitments. Equal opportunity is the law. We seek to promote fair employment procedures and practices to ensure equal opportuni