Hydraulic Modeler

Hydraulic Modeler - Water Resources

About the Role

We are seeking an experienced Hydraulic Modeler / Water Resources Engineer to support a variety of stormwater, drainage, floodplain, and watershed projects.

In this role, you will perform hydrologic and hydraulic (H&H) modeling for complex infrastructure and transportation projects, using industry-leading tools such as HEC-RAS, HEC-HMS, SWMM, and InfoWorks ICM. You will work alongside engineers, planners, and other technical professionals to evaluate system performance, identify potential flood and drainage impacts, and develop practical engineering solutions.

This is a hybrid opportunity with a large, well-established organization in the water resources industry, offering exposure to complex projects and strong long-term career growth.

Key Responsibilities

• Perform hydrologic and hydraulic modeling for stormwater, drainage, floodplain, and watershed studies.
• Develop, calibrate, and analyze models using HEC-RAS (1D/2D), HEC-HMS, SWMM, InfoWorks ICM, or similar modeling platforms.
• Evaluate rainfall-runoff, hydraulic capacity, flood risk, drainage performance, and system behavior under various design scenarios.
• Perform technical calculations and interpret modeling results to support engineering recommendations and design decisions.
• Prepare technical reports, calculations, figures, exhibits, and other documentation for design packages and regulatory submissions.
• Support stormwater and drainage design, including grading, drainage, paving, and related civil infrastructure improvements.
• Use AutoCAD Civil 3D and GIS tools to support modeling, analysis, and civil design activities.
• Work closely with multidisciplinary project teams to incorporate modeling results into practical and constructible designs.
• Support permitting and coordination with local, state, and federal regulatory agencies.
• Respond to technical comments and information requests from clients, agencies, and other project stakeholders.
• Maintain accurate model files, calculations, supporting data, and documentation in accordance with established QA/QC procedures.

Qualifications

• Bachelor"s degree in Civil Engineering, Environmental Engineering, Water Resources Engineering, or a related field.

• 4+ years of professional experience in hydrologic and hydraulic modeling, stormwater management, drainage, floodplain analysis, or water resources engineering.

• Hands-on experience with one or more H&H modeling programs, including:

• HEC-RAS (1D/2D)

• HEC-HMS

• SWMM

• InfoWorks ICM

• Comparable hydrologic/hydraulic modeling software

• Strong understanding of hydrology, hydraulics, rainfall-runoff analysis, floodplain analysis, and stormwater management.

• Experience applying modeling results to drainage, stormwater, or water resources design.

• Working knowledge of applicable local, state, and federal stormwater and floodplain regulations.

• Experience with AutoCAD Civil 3D and civil/site design principles.

• Strong technical writing, analytical, and communication skills.

• Ability to collaborate effectively with engineers, planners, clients, and agency stakeholders.

Preferred Qualifications

• Professional Engineer (PE) license or EIT certification.
• Advanced experience with InfoWorks ICM.
• Experience with ArcGIS or similar GIS platforms for watershed, drainage, or floodplain analysis.
• Experience supporting transportation, municipal infrastructure, or large-scale water resources projects.
• Experience preparing or supporting regulatory and permitting submissions.

Work Environment

This position offers a hybrid work schedule and the opportunity to join a large, highly recognized organization within the water resources industry.

You will work on complex infrastructure and transportation projects alongside multidisciplinary engineering teams, with access to industry-leading modeling and design technology. The organization offers strong opportunities for technical development, career advancement, and long-term growth.

Job Type & Location

This is a Permanent position based out of New York, NY.

Pay and Benefits

The pay range for this position is $35.00 - $55.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in New York,NY.

Application Deadline

This position is anticipated to close on Sep 25, 2026.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.