Senior Roadway Drainage Engineer (Hydrology & Hydraulics

Senior Roadway Drainage Engineer (Hydrology & Hydraulics)

The AECOM Water Business Line is seeking a Senior Roadway Drainage Engineer (Hydrology & Hydraulics) to join the Phoenix, AZ office. This role focuses on roadway and highway drainage design, hydrologic and hydraulic modeling for transportation corridors, and development of storm drain, culvert, and cross-drainage systems in support of municipal and DOT infrastructure projects.

Lead hydrologic and hydraulic analysis and design for roadway drainage systems, including storm drain networks, culverts, inlets, gutter flow, spread analysis, and hydraulic grade line (HGL) evaluations along transportation corridors.

This role leads the delivery of mid- to large-scale infrastructure projects while providing a clear path into a technical lead role with PM responsibilities and growth within AECOM's growing water resources practice. The successful candidate will provide technical leadership, mentor junior staff, support client relationships, and contribute to business development within a collaborative, multi-disciplinary team environment.

Minimum Requirements:

• Bachelor's degree in Civil Engineering or related discipline with 8 years of relevant professional experience
• Professional Engineer (P.E.) license in Arizona or ability to obtain within six (6) months of hire

Preferred Qualifications:

• Master's in Civil Engineering or related field of study
• Experience with DOT or municipal roadway drainage standards (e.g., ADOT, county public works) including inlet spacing, gutter flow, spread calculations, and storm drain hydraulic design.
• Bachelor's degree in Civil Engineering or related discipline with 10 years of relevant professional experience
• Demonstrated expertise in stormwater evaluation and design, including 1D/2D hydrologic and hydraulic modeling
• Proficiency with industry-standard modeling software (e.g., Open Roads Design (ORD) HEC-RAS, HEC-HMS, SRH-2D)
• Experience leading design tasks on complex water resources or design-build projects
• Strong understanding of stormwater permitting, floodplain management, and regulatory coordination
• Experience developing grading, drainage, and roadway plans in coordination with CAD designers (AutoCAD Civil 3D preferred)
• Proven ability to manage scope, budget, and schedule for complex engineering tasks
• Experience preparing technical reports, calculation packages, and construction documentation
• Demonstrated technical review and quality control oversight experience
• Strong analytical skills with sound application of civil engineering design principles
• Effective communicator with the ability to lead teams and collaborate with other team members

Additional Information:

• Sponsorship is not available for this role
• No relocation is available for this role.