Transportation​/Engineering Intern

Traffic and Transportation Engineering Intern – Seattle, WA

Arcadis is looking for a Traffic and Transportation Engineering Intern to join our team in Seattle, WA. In this position, you will assist our growing traffic and ITS group in conducting traffic studies, utilizing data to identify operational and safety needs, preparing plans, and CAV corridor planning. You will have the opportunity to work alongside project managers and senior engineers to gain a better understanding of the transportation industry and further develop your technical skills.

• Support design and documentation tasks for ITS and transit technology projects, including preparing engineering figures, markups, and technical specifications.
• Assist with reviewing contractor submittals and shop drawings against project requirements.
• Help develop and organize technical deliverables such as requirements matrices, design narratives, and progress reports.
• Research engineering standards, transit agency criteria, and emerging transportation technologies to support active projects.
• Use data and mapping tools to support project coordination and systems analysis.
• Assist senior engineers and project managers with day‑to‑day coordination across multidisciplinary project teams.
• Gain exposure to real‑world public infrastructure delivery, working alongside transit agencies, DOTs, and partner firms.
• Contribute to smart mobility initiatives spanning Bus Rapid Transit, communications systems, and ITS planning.

Required Qualifications

• Seeking a degree in civil or transportation engineering.

Preferred Qualifications

• Prior internship experience in engineering consulting or DOT.
• Familiarity with CAD, PDF markup tools (e.g., Bluebeam), or basic networking and communications system concepts.

We want you to be able to bring your best self to work every day which is why we take equality and inclusion seriously and hold ourselves to account for our actions. We are an equal opportunity and affirmative action employer. Women, minorities, people with disabilities and veterans are strongly encouraged to apply.

• Medical, dental, and vision coverage.
• Employee Assistance Program (EAP).
• 401(k) plan.
• Short‑term and long‑term disability (STD, LTD).
• AD&D, life insurance.
• Paid parental leave.
• Reward & recognition program.
• Well‑being benefits, adoption assistance and tuition reimbursement.
• 9 paid holidays and 15 days PTO that accrue per year.

Salary range for this position is $20.64 – $30.97 per hour. Actual salaries will vary based on experience, education, budget, internal equity, project and location.