Senior Project Engineer - Marine Structures

At Mott Mac Donald, 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.

Mott Mac Donald is seeking a Senior Project Engineer with Marine Structures to lead and deliver challenging waterfront infrastructure projects. This role focuses on structural design and project management for ports and coastal facilities in the Pacific Northwest. You will be part of a collaborative PCO practice that develops and modernizes port infrastructure, improves coastal resiliency, and supports emerging markets like offshore wind.

• Plan and conduct condition assessments of piers, wharves, dolphins, and other marine structures, and prepare detailed inspection reports, evaluating timber, concrete, and steel components for integrity and remaining life.
• Lead the structural analysis and design of port and waterfront facilities—such as piers, wharves, dolphins, bulkheads, fender systems, ferry terminals—in both rehabilitation and new construction projects. Develop design concepts, perform calculations (including seismic and fatigue analysis), and produce engineering drawings and specifications. Ensure designs meet applicable codes (ASCE, AASHTO, UFC, IBC, City Codes, etc.) and client standards.
• Manage marine infrastructure projects from planning through delivery, including scoping, scheduling, and budgeting. Track progress and costs, implement quality control, and regularly report to senior management. Coordinate multidisciplinary teams and subconsultants to keep projects on schedule and within budget.
• Provide technical support during construction, resolving design issues in the field, reviewing submittals/RFIs, and conducting site visits or field inspections to ensure compliance with design intent. Assist in developing contracting strategies and construction sequencing to minimize operational impacts.
• Work closely with clients such as port authorities and naval facilities to understand needs and deliver timely solutions. Ensure client satisfaction through clear communication and reliable execution. Assist in proposals and presentations for new work, leveraging technical expertise to win future projects.
• Supervise and mentor junior engineers and CAD designers, providing guidance in analysis methods, design practices, and professional growth. Lead by example in fostering a safe, inclusive, and innovative team environment, often serving as the technical lead or task manager.
• Prepare high‑quality engineering documents, including calculation packages, technical memos, design criteria, technical specifications, and cost estimates. Author and review structural design reports and studies (e.g., basis of design, feasibility studies) and ensure deliverables meet internal and client quality standards.

• Bachelor's degree in Civil or Structural Engineering (master's preferred). Active PE license in Washington or Oregon required (or ability to obtain promptly); a Structural Engineer (SE) license is a plus.
• 8‑12 years of progressive experience in structural engineering for waterfront structures, bridges, or building design, including design of port structures and oversight from concept to construction; experience with technical specifications or special provisions and cost estimate development.
• Proficiency in marine structural analysis and design, strong knowledge of concrete and steel in marine environments, pile/foundation design, and seismic design of main force resisting systems. Familiarity with ASCE…