Floodplain / Dams Modeler - Junior PE - Chantilly

About the Company

My client is a multidisciplinary civil and water resources engineering firm that supports a diverse mix of municipal, state, federal, and private‑sector projects. Their portfolio ranges from major mixed‑use developments and data center campuses to community‑scale infrastructure and environmental projects. The team works closely with local jurisdictions and agencies such as USACE, NAVFAC, GSA, DHS, NIH, and others. The company has a dedicated Water Resources group specializing in stormwater management, floodplain analysis and permitting, dam breach modeling, inspections, and long‑term system maintenance.

The Opportunity

My client is seeking a Floodplain and Dam Engineer / Modeler to join their growing Water Resources team in Chantilly, VA. This role offers hands‑on involvement in floodplain modeling, floodplain permitting, dam safety studies, H&H modeling, and design of floodplain and dam-related infrastructure. The position provides excellent opportunities for professional development, mentorship, and exposure to a wide breadth of water resources services, including stormwater design and regulatory permitting.

Key Technical Responsibilities

• Develop hydrologic and hydraulic (H&H) models using GIS, survey data, and topographic information
• Analyze, calibrate, and troubleshoot hydraulic models
• Prepare floodplain studies, CLOMR/LOMR submissions, and related permitting packages
• Complete dam breach inundation studies, hazard classification assessments, and failure mode analyses
• Produce floodplain and dam breach mapping
• Prepare Emergency Action Plans (EAPs) and support emergency drill materials
• Assist with design of floodplain crossings and dam rehabilitation projects

General Job Duties

• Develop and manage HEC‑RAS models (1D and, ideally, 2D)
• Prepare state and local permit applications
• Conduct site visits for floodplain and dam inspections
• Write technical reports and documentation
• Research codes, regulations, and engineering standards
• Coordinate with regulators and review agencies to resolve comments
• Manage multiple projects and deadlines
• Collaborate effectively with internal team members
• Other engineering duties as required

Required Qualifications

• Minimum 2+ years of experience with HEC‑RAS modeling
• Bachelor's degree in Civil Engineering or related discipline
• Strong analytical, mathematical, and problem‑solving skills
• Excellent written and verbal communication
• High attention to detail and strong quality control mindset
• Experience with ArcMap or similar GIS software

Preferred Qualifications

• Engineer‑in‑Training (EIT) certification
• Professional Engineer (PE) license
• Certified Floodplain Manager (CFM)
• Experience with HEC‑RAS 2D
• Proficiency in AutoCAD

Why Join This Team?

The company offers a collaborative work environment where employee development is highly valued. Team members benefit from a supportive, small‑business atmosphere paired with opportunities to work on impactful regional projects.

Benefits

• Medical, dental, and vision coverage
• Life insurance
• Short‑ and long‑term disability
• 401(k) plan
• Continuing education incentives & training opportunities
• A strong culture based on teamwork, flexibility, and professional growth