Senior Hydrology & Hydraulic Modelinb Lead

Position Description: RIZZO International, Inc. is seeking a highly experienced Senior Hydrology & Hydraulic Modeling Lead to provide technical leadership and oversight in integrated hydrology, hydraulics, and advanced numerical modeling for complex water-related infrastructure projects. This role is ideal for a seasoned professional with extensive experience in dam engineering, hydropower development, nuclear cooling water systems, tailings dams, flood control infrastructure, and large-scale drainage systems. The selected candidate will serve as a technical authority responsible for high-level modeling strategy, design oversight, regulatory support, and mentorship of junior engineers across domestic and international projects. Responsibilities: + Lead hydrologic and hydraulic analyses for dams, hydropower facilities, nuclear power plants, tailings dams, levees, flood control systems, and major drainage infrastructure + Provide technical supervision and quality control for 1D/2D hydraulic and hydrologic models + Perform and oversee: + Flood frequency and PMP/PMF studies + Water availability and water balance analyses + Dam break and inundation mapping studies + Embankment erosion and sediment transport modeling + Scour analyses and river morphodynamic assessments + Cooling water intake/discharge hydraulic and thermal studies + Develop, review, and validate advanced numerical models using: + HEC-RAS (1D/2D) + HEC-HMS + FLOW-3D + OpenFOAM + RiverFlow2D + FLO-2D + ANSYS + Support reservoir operations modeling and climate change impact assessments + Provide input on project planning, budgets, scheduling, and modeling strategies + Prepare technical scopes of work, proposals, reports, and client presentations + Attend and lead domestic and international client and regulatory meetings + Mentor and supervise junior and intermediate engineers + Support interdisciplinary coordination across geotechnical, structural, and environmental teams Experience Requirements: + B.S. in Civil, Hydraulic, or Water Resources Engineering (M.S. or Ph.D. preferred) + 15+ years of progressive experience in hydrology and hydraulic modeling + Professional Engineer (P.E.) license or ability to obtain licensure + Demonstrated leadership and technical oversight on complex water infrastructure projects + Extensive numerical modeling experience in surface water hydrology and hydraulics + Strong foundation in: + Fluid mechanics + Surface water hydrology + Hydraulic structures design + Statistics and flood frequency analysis + Sediment transport and river hydraulics + Experience with GIS and CADD software + International project experience preferred + Coastal modeling experience considered an asset Preferred Experience: + Hydropower development and rehabilitation + Dam safety reviews and regulatory support + Nuclear power plant cooling water systems + Tailings dam hydrology and dam breach assessments + Climate resilience and extreme event modeling + Design-build infrastructure delivery Job Type: Full-time Pay: $120,000 u2013 $150,000 per year (commensurate with experience) Competitive Compensation Package: + 401(k) + Accident/Wellness insurance + Dental insurance + Dependent care spending account + Flexible spending account + Health insurance + Company-paid life, AD&D, and short/long term disability + Paid time off (vacation, paid sick leave, holidays) + Professional development opportunities + Employee referral program + Relocation assistance (as applicable) + Vision insurance + Optional work from home Fridays + Twelve (12) annual work from home days BACKGROUND RIZZO International, Inc. is a woman-owned, highly focused consulting firm specializing in all aspects of civil engineering, earth sciences, and field/testing services for dams, nuclear power plants, and other power-related markets. Our firm has worked around the world on unique, challenging, and technically demanding projects. We take pride in our commitment to providing personal and professional services in a responsive, high quality manner, and continually strive to exceed our clientsu2019 expectations by providing innovative and economically smart solutions. To learn more about our global experience visit us at EOE M/F/Disability/Veteran EEOC Disclaimer: RIZZO International, Inc. is an equal opportunity employer in that our policy, in accordance with Federal and State laws, prohibits employment discrimination solely on the basis of a personu2019s race, color, creed, sexual orientation, sex, marital status, or disability except where a reasonable, bona fide occupational qualification exists.

Created: 2026-03-12