Project Engineer - Tunnels Construction Management

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 are seeking a talented and motivated Project Engineer to support the construction delivery of major tunneling and underground infrastructure projects across Southern California and beyond. The role is anticipated to include secondment to a construction site, working closely with the owner, construction management team, designer, and contractor on the Los Angeles Sanitation (LASAN) Outfall Tunnel Program and other critical infrastructure projects.

As part of the site-based construction management team, you will monitor construction activities, coordinate technical and contractual interfaces, review contractor submittals, maintain project records, and support timely resolution of field issues. This position is ideal for an engineer who combines tunneling knowledge with practical judgment and strong communication skills.

• Serve as a site-based member of the construction management team for tunneling, shaft, underground structure, and associated surface works.
• Monitor contractor activities for general conformance with contract documents, approved submittals, permits, and project procedures.
• Perform regular field observations and document construction progress, labor and equipment, work activities, constraints, and notable site conditions in daily reports.
• Coordinate responses to requests for information, field queries, design clarifications, nonconformance reports, and other technical issues arising during construction.
• Review contractor submittals, work plans, method statements, shop drawings, material data, inspection and test plans, and temporary works packages for completeness and coordination.
• Track submittals, RFIs, action items, nonconformances, change issues, and other construction management logs through timely closure.
• Support quality assurance activities, including inspection coordination, review of testing and inspection records, verification of corrective actions, and compilation of turnover documentation.
• Participate in progress, coordination, quality, look-ahead, and issue-resolution meetings; prepare meeting notes and follow up assigned actions.
• Review contractor schedules, short-term look-ahead plans, progress updates, and quantity records; identify emerging constraints or variances and support recovery planning.
• Assist with measurement and verification of completed work, review of payment application backup, and maintenance of records supporting quantities and progress.
• Support evaluation and documentation of potential changes, differing site conditions, claims, and time impacts by maintaining contemporaneous records and coordinating technical input.
• Coordinate interfaces among the owner, contractor, designer, inspectors, utility representatives, operations staff, and other project stakeholders.
• Support environmental, permit, community-impact, traffic, access, and site logistics coordination as required for the work.
• Assist with testing, commissioning, punch-list management, as-built record review, closeout, and handover activities.
• Promote a strong culture of health, safety, quality, inclusion, and collaboration, and promptly escape significant site risks or concerns.

• Bachelor's degree in Civil Engineering, Construction Management, or a related discipline.
• Professional Engineer (PE) license preferred, or ability to obtain licensure within a defined timeframe.
• 7+ years of experience in tunneling, underground construction, heavy civil infrastructure, or construction management.
• Demonstrated experience working in a field or site-based role on transportation, water/wastewater, energy, or related infrastructure projects.
• Practical knowledge of tunneling and underground construction methods, including shafts, excavation support, concrete works, ground support, grouting, and tunnel boring machine operations.
• Experience reviewing contractor submittals, RFIs, work plans, method statements, inspection records, schedules, and change documentation.
• Understanding of construction…