Volker Janssen is a Senior Hydraulic and Water Resources Engineer at LimnoTech. Volker has 15 years of experience in hydrology, hydraulics, hydrogeology and GIS, and has served as the technical lead and/or provided support for various modeling efforts in the Mid-Atlantic region. During his project work, Volker has worked with relational databases, GIS environments, and a variety of hydrologic and hydraulic modeling frameworks, including HEC-RAS, HEC-HMS, RMA2, SED2D, FESWMS, SWMM, MIKE URBAN, and EFDC. He has capabilities in several programming languages such as C++, VBA, Python, and R. His responsibilities include the design, calibration, and application of 2- and 3-dimensional hydrodynamic models for tidally influenced river systems, sewer systems, urban flood, and LID models as well as the development of pre- and post-processing tools for modeling and monitoring data analysis. Volker works at LimnoTech’s Mid-Atlantic Regional Office in Washington, DC.