Senior Civil Engineer - Water/Wastewater

Company Description

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At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

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.

We're one global team driven by our common purpose to deliver a better world. Join us.

Job Description

AECOM's Water business line is seeking a Senior Civil Engineer with strong site civil design expertise to join our Water/Wastewater/Conveyance team in Orange, CA. This is an opportunity to lead multidisciplinary projects that shape critical water infrastructure across the United States—including treatment plants, pump stations, and conveyance systems. The ideal candidate will have demonstrated experience in grading, drainage, and pipeline design and will bring creative solutions and leadership to our growing Southern California water practice.

Key Responsibilities

• Lead and oversee site civil design efforts for water and wastewater infrastructure facilities, including rough and precise grading, drainage, paving, and site utilities.
• Manage and perform pipeline design for water, wastewater, and stormwater conveyance systems (gravity and pressure).
• Coordinate civil site design with architectural, structural, and process engineering teams to ensure constructible, cost-effective, and sustainable solutions.
• Conduct field visits, condition assessments, and constructability reviews to confirm design intent and compliance with client standards and regulatory requirements.
• Prepare and review design plans and specifications for civil site work and pipelines.
• Provide technical guidance, mentoring, and QA/QC support to junior engineers and CAD designers.
• Participate in client meetings and internal coordination with project managers to align design objectives and deliverables.
• Prepare clear, concise technical memoranda, design reports, and design calculations.
• Stay current on industry standards, codes, and innovative technologies in site civil and water infrastructure design.

Qualifications

Minimum Requirements

• Bachelor’s degree in Civil Engineering (or related discipline). and 10 years of progressively responsible civil design experience. or demonstrated equivalency of experience and or education
• California Professional Engineer (PE) license or ability to obtain within 6 months.
• Valid U.S. Driver’s License and ability to pass AECOM’s Motor Vehicle Record review.

Preferred Qualifications

• 15+ years of experience in civil and pipeline design for municipal water and wastewater projects.
• Proven expertise in grading, drainage, and site civil design.
• Demonstrated experience with water, wastewater, and/or stormwater pipeline design, including preparation of construction documents.
• Strong understanding of open-cut and trenchless construction methods (microtunneling, jack-and-bore, HDD).
• Experience preparing Water Quality Management Plans (WQMPs), Storm Water Pollution Prevention Plans (SWPPPs), and post-construction BMP designs.
• Master’s degree in Civil or Environmental Engineering.
• Familiarity with water and sewer rehabilitation techniques.
• Envision SP certification or interest in sustainable infrastructure design.
• Proven leadership in mentoring and developing staff.

Additional Information

• Sponsorship is not available for this position
• Relocation may be available 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 award