Volker Janssen is a civil engineer at LimnoTech in our Washington, D.C. office with 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 also capabilities in several programming languages such as C++, VBA and Python. His current responsibilities include the design, calibration, and application of 2- and 3-dimensional hydrodynamic models for tidally influenced river systems, urban flood, and LID models. Volker works at LimnoTech’s Mid-Atlantic Regional Office in Washington, DC.