Senior Hydraulic Modeler
Listed on 2026-07-01
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Engineering
Environmental Engineer, Water Engineer, Water Management, Civil Engineering
Senior Hydraulic Modeler
HDR needs a Senior Hydraulic Modeler/Planner to join our Water Business Group team in New York/New Jersey offices. The ideal candidate will have a background of leading teams in the delivery of utility management, master planning, facility planning, and hydraulic modeling projects associated with water supply, stormwater, sanitary and combined sewer collection, and water reuse systems. The Senior Hydraulic Modeler/Planner will be responsible for leading or contributing to the preparation of planning studies, development and calibration of water, stormwater, and wastewater hydraulic models, performance of GIS data analysis, alternatives analysis, execution of infrastructure renewal and rehabilitation studies, preliminary engineering, cost analysis, and capital project development.
Responsibilities also include client interaction such as the development of proposals, scopes and level of effort estimates, project presentations, and report writing. This role may include the supervision of teams, mentoring and quality assurance/quality control activities for hydraulic modeling and master planning projects.
In the role of Senior Hydraulic Modeler, we'll count on you to:
Provide project and task management; conduct difficult to complex hydraulic and hydrologic modeling; conduct stormwater collection systems modeling and design; collect, assimilate and present data in reports, memos and public forums; lead production of design calculations and technical reports; and lead preparation of engineering plans and specifications for design of detention facilities, storm drains, flood control facilities and other hydraulic structures.
Work independently in addition to planning, organizing and supervising the work of medium to large teams of professionals and technicians dependent on project/task. Serve as project manager on larger projects as needed. Prepare proposal, scopes of work and contract cost estimates. Perform other duties as needed.
Preferred Qualifications:
MS in Civil or Environmental Engineering or related field a plus. Proficiency in ArcGIS Pro, mapping and analysis. Knowledge and experience with software such as Info Works ICM, WaterGEMS, EPA/XP/PCSWMM, HECHMS, HECRAS, Info Water, and HydroCAD. Infrastructure design experience. Experience mentoring junior modeling and planning staff. Experience working for a public, municipal, or investor-owned water and/or wastewater utility, public works department, or engineering consulting firm is beneficial.
Experience assisting with project budgeting, project management and client management activities. Experience working with clients within New York / New Jersey.
Required Qualifications:
Bachelor's degree in Civil Engineering or equivalent field. A minimum of 10 years Water Resources experience. Requires professional engineering license recognized by the licensing board for the location of the position offered. Example:
Professional Engineer (PE or P.Eng) license. HEC-1, HEC-RAS, GEO-RAS, Storm CAD, Haested Methods. Experience in water resources planning, hydrology/hydraulics and drainage/flood control design. Familiarity with DOT drainage design criteria. Experience in FEMA studies a plus. Excellent writing and communication skills. Ability to work independently and as part of a project team. An attitude and commitment to being an active participant of our employee-owned culture is a must.
HDR provides a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement. The expected compensation range for this position depends upon skills, experience, education and geographical location.
(Stated benefits are for full-time regular positions. Temporary and part-time roles eligible for limited benefits.) Woodcliff Lake and Manhattan: $142,538 - $ 203,625 Newark : $136,836- $195,480 Pennington : $131,135 - $187,335
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