Tunnels Engineering Internship - 2026

At Mott MacDonald, we trust our brilliant people to do brilliant things in engineering, management, and development services, supporting multisector project work in over 150 countries. As one of the largest employee-owned companies in the world, we pride ourselves on our ability to deliver exceptional outcomes through our network of 20,000+ talented consultants. With sustainability and innovation at the heart of all our sectors in North America, including, Buildings, Energy, Transportation, and Water.

We believe in empowering our people to excel, learn, and grow, offering diverse opportunities to contribute to career-defining work. Join us and be part of a collaborative environment where your ambitions are united with ours, and you can truly shape your story.

At Mott MacDonald, we believe that engineering is about more than solving problems, it's about shaping a future that's inclusive, resilient, and sustainable. As we expand our operations across the US and Canada, we're inviting passionate individuals to join us in a journey that's driven by purpose and powered by brilliant people. We're trusted consultants, partnering with clients to solve complex challenges and deliver lasting impact.

From the moment you join our team, you'll be surrounded by experienced engineering consultants, project managers, and subject matter experts who are committed to excellence and innovation. You'll work side-by-side with mentors and peers who champion integrity and teamwork, because we know collaboration drives better outcomes - and you won't just apply your engineering skills, you'll also embrace the mindset of a consultant.

Together, we'll tackle complex challenges, deliver sustainable solutions, and create positive change for our clients and the communities they serve. You'll be trusted to contribute, encouraged to grow, and supported every step of the way.

As a participant of our brand-new internship program, launching in 2026, you'll gain hands on experience across a variety of impactful projects. 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 2026 opportunity, here's what you'll need :

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

We're more than engineers - we're changemakers. At Mott MacDonald, you'll find :

We welcome individuals who are driven by curiosity, compassion, and a desire to make a difference. If you're excited by the idea of working in an engineering consultant that values your growth and empowers you to lead with integrity, we'd love to hear from you.

Here's an overview of what to expect this recruitment season :

Applicants must be authorized to work for any employer in the US, as Mott MacDonald is unable to provide sponsorship at this time.

Our teams are comprised of bright and enthusiastic people who wish to make a difference to the world that we live in. If you share that vision and don't have all the experience outlined in this posting, we still want to hear from you!

Let's discuss how we can help you take the next step in your career and how you can participate in an exciting new chapter for Mott MacDonald in North America.

At Mott MacDonald, we provide a comprehensive benefit package that includes 401k, medical, dental and vision insurance, short-term / long-term disability, paid holidays, PTO, parental leave and company paid life insurance.

The expected pay for this position is $18 - $35 per hour.

Individual pay is determined based on several factors such as work location, education, experience, and unique skills.

Equal opportunity is the law.

We seek to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.

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

Hybrid working policy

At Mott MacDonald, we believe it makes business sense for you and your manager to choose how you can work most effectively to meet your client, team, and personal commitments. We offer a hybrid working policy that embraces your well-being, flexibility, and trust.