Stormwater Project Engineer

Weston & Sampson; Village of Suffern (NY); On-site; USD 95,400 - 122,110; Full time

Benefits offered by this job

Flexible workplace

Growth opportunities

Collaborative culture

Job summary

Weston & Sampson is hiring a Hydrologic & Hydraulic Project Manager for their Suffern, NY office. Ideal candidates will have over 5 years of experience focusing on hydrologic and hydraulic modeling in urban environments.

This role involves managing diverse projects, mentoring junior staff, and ensuring high-quality designs. The position also offers growth opportunities and a commitment to work-life balance within a collaborative culture.

Qualifications

• 5+ years’ experience in surface water hydrology and collection system hydraulics.
• Experience developing numerical models for stormwater drainage and coastal flooding.
• Valid driver's license is required for limited travel.

Responsibilities

• Manage hydrologic and hydraulic modeling projects in urban environments.
• Supervise, train, and mentor less experienced engineers.
• Support design of stormwater systems for municipal clients.

Skills

Surface water hydrology

Hydraulic modeling

HydroCAD

HEC-HMS

HEC-RAS

PCSWMM

ICM

2D modeling

3D modeling

Education

Bachelor’s in Civil or Environmental Engineering or Hydrology

Master’s degree

Job description

Weston & Sampson is currently seeking a Hydrologic & Hydraulic Project Manager with 5+ years of experience for a position in our Water Discipline out of our Suffern, NY office location. The position will focus on projects that involve hydrologic and hydraulic modeling in complex urban environments and integrating coastal, riverine, and piped infrastructure flooding environments.

What You’ll Do

• Typical projects include:
  • Rainfall‑runoff models to support dam safety, climate resilience planning
  • Evaluation of complex hydraulic settings, including combinations of open channel, piped infrastructure, rain‑on‑grade, and coastal flooding
  • Reservoir mass balance modeling incorporated into innovative client/user interfaces
  • Dam safety related projects such as design flood identification, dam rehabilitation alternatives analyses, breach analyses, and inundation mapping
• Supervise, train, and mentor less experienced project engineers and designers
• Support the evaluation, study, and design of stormwater systems for municipal clients, including providing stormwater master planning services and designs to support both flood mitigation and water quality improvements
• Provide field evaluation and assessment of existing stormwater infrastructure
• Support the design of green infrastructure and nature‑based solutions for treatment of stormwater
• Conduct and coordinate analyses and computer‑aided evaluations of surface water systems, including watersheds, rivers, and lakes
• Model and design stormwater BMPs, green infrastructure, and LID projects
• Prepare FEMA Letter of Map Revision applications
• Participate in site project designs
• Communicate and prepare written, verbal, and technical information clearly and effectively with clients and internal multidisciplinary teams
• Assist with business development, marketing, and proposal preparation

What You Will Bring

• Bachelor’s in Civil or Environmental Engineering, Hydrology, or similar degree is required. Master’s is a plus
• 5+ years’ experience of surface water hydrology and collection system hydraulics
• Experience developing HydroCAD, HEC-HMS, HEC-RAS, PCSWMM, and ICM, as well as 2D (required experience) and 3D (preferred experience) numerical modeling
• Experience developing models to support a wide range of project types, such as stormwater drainage infrastructure and BMP design, green infrastructure and LID projects, coastal flooding analyses, and dam safety projects
• Certified Floodplain Manager preferred
• Project management experience, to include technical oversight and QA/QC experience
• Marketing, proposal development and client management experience preferred
• Valid driver’s license is required for limited travel to client meetings

Salary Range: $95,400 - $122,110 based on experience

Benefits

• Meaningful work: Contribute to projects that protect and enhance the natural and built environments
• Ownership mindset: As an employee-owner, your work directly contributes to our shared success
• Growth opportunities: Build your career through mentorship, diverse projects, and clear advancement pathways
• Flexible workplace: Work in a way that supports your life and not the other way around
• Strong culture: Join a team that values collaboration, inclusion, and recognition

Our Commitment to Inclusion, Diversity, Equity & Access (IDEA)

We believe diverse perspectives make us stronger. Weston & Sampson is committed to fostering a culture of belonging where all employees feel valued, respected, and empowered. We actively support IDEA principles across our organization and in our daily work.