Structural Engineer Assistant Jobs in California

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There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

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AECOM is seeking a Structural Engineer III to join our Ports & Marine team, supporting the planning, analysis, and design of marine and waterfront infrastructure projects within Seattle, WA, Houston, TX, or Orange, CA. This position is well suited for an early-career structural engineer with a strong academic background and hands-on experience contributing to design deliverables for complex infrastructure projects under the guidance of senior engineers and project managers.

The successful candidate will support structural engineering tasks across a range of port, marine, and coastal facilities, working within multidisciplinary teams to deliver technically sound, code-compliant solutions for public and private sector clients.

Key Responsibilities

• Perform structural analysis and design for marine and waterfront structures, including port facilities, wharves, piers, bulkheads, retaining structures, and associated infrastructure
• Assist with the preparation of structural calculations, technical memoranda, design reports, and supporting documentation in accordance with project requirements and client standards
• Support the development of plans, details, and specifications in coordination with senior engineers and designers
• Apply applicable codes, standards, and guidelines to ensure designs meet regulatory, safety, and quality requirements
• Coordinate with multidisciplinary teams, including civil, geotechnical, coastal, and construction professionals, to support integrated project delivery
• Participate in internal quality control processes and respond to review comments under the direction of senior staff
• Support project teams through various phases of project development, from conceptual and preliminary design through final design and construction support
• Maintain organized project files and documentation consistent with AECOM procedures and quality management systems

Technical Skills and Tools

• Proficiency with SAP2000, MathCAD, and Microsoft Excel for structural analysis and calculations
• Experience preparing or supporting design documentation using AutoCAD or Revit (either is acceptable)
• Familiarity with producing clear, well-documented engineering calculations and reports

Minimum Requirements:

• BA/BS + Four (4) years of professional structural engineering experience or equivalent (with emphasis on structural engineering)

Preferred Qualifications:

• Master's degree in Structural Engineering
• Exposure to infrastructure, transportation, marine, or waterfront projects
• Ability to work effectively in a collaborative, team-based engineering environment
• Strong attention to detail and commitment to quality and technical accuracy
• Clear written and verbal communication skills for technical documentation and internal coordination

• Sponsorship is offered for this position

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients' complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you'll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you've always envisioned. Here, you'll find a welcoming workplace built on respect, collaboration and community-where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.