Floodplain and Dam Engineer - Technical Lead
Chantilly, VA
Experience: 10
Category: Engineering
Contractor Work Model: Onsite
Brand: System One
Job ID: 375765
Date Posted: 07/21/2026
Shortcut: http://jobs.systemone.com/7qhybT
Job Title: Floodplain and Dam Engineer - Technical Lead
Location: Chantilly, VA
Overview
The Floodplain and Dam Engineer - Technical Lead involves work on floodplain modeling, floodplain permitting, floodplain crossing design, dam modeling, and dam permitting. The position supports hydrology and hydraulic (H&H) modeling across a variety of regional projects. Floodplain work includes both local and FEMA-regulated areas, while dam-related efforts focus on state-regulated dams in Virginia and Maryland.
Responsibilities
- Lead and manage floodplain and dam modeling projects, including development of H&H models using topographic, GIS, and as-built data
- Analyze, calibrate, and troubleshoot hydraulic models to ensure accuracy and compliance
- Prepare floodplain study, alteration, CLOMR, and LOMR permit packages for local and FEMA-regulated areas
- Conduct dam breach inundation studies, hazard assessments, and failure analyses, supporting dam rehabilitation and alteration design
- Develop and review technical reports, floodplain mapping, and emergency action plans
- Design floodplain crossings for vehicular and pedestrian access
- Coordinate with regulatory agencies to secure permits and approvals, managing multiple projects and deadlines
- Mentor and support junior engineers and technical staff
- Communicate effectively with internal teams and external clients, supporting contract management activities
- Perform site visits for floodplain and dam inspections, ensuring adherence to standards and regulatory requirements
- 10+ years of experience in water resources engineering, including floodplain and dam modeling
- Bachelor’s degree in Civil Engineering or related field
- Professional Engineer (PE) license (VA required; multi-state preferred)
- Strong experience with HEC-RAS (including 2D modeling) and HEC-HMS tools
- Proficiency in ArcMap or similar GIS platforms
- Demonstrated project management and client relationship skills
- Excellent communication, organizational, and analytical skills
- Strong attention to detail and quality control capabilities
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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