Demonstrated experience developing, calibrating, and applying models + Proficiency and experience with one or more platforms: Cube, TransCAD, VISUM, TRANSIMS, DTALite, DynusT, or similar + Ability to develop custom data analysis routines in Python, R, C++, or similar + Proficiency and experience with C++ or demonstrated aptitude and interest in developing modeling-related software components + Experience working with large datasets and model workflows/pipelines + Advanced skills and experience in Excel and data analysis + Experience with GIS platforms (ArcGIS Pro or QGIS) **Preferred:** + Experience with COG/TPB Gen2 Travel Model (trip-based) + Experience or exposure with + Activity-Based Models (ABM) or + COG/TPB Gen3 Travel Model (activity-based) + Experience implementing or supporting travel models for MPOs or DOTs + Master’s or PhD in a related field + 10 years of modeling experience with increasing technical responsibility + Familiarity with federal processes (NEPA, FHWA/FTA guidelines) + Experience with: + Tolling and managed lane modeling + Big data processing (RITIS, StreetLight, Replica, TomTom, etc.) + Cloud environments (AWS, Azure) for model execution + Visualization tools (Power BI, Tableau) + Professional certification (PE, PTP, or AICP) + Hybrid position slightly preferred over remote position + Demonstrated ability and interest in software development beyond scripting, particularly (a plus): + Writing or modifying core modeling code in C++ Improving performance, memory efficiency, or scalability of models **Additional Information** + Relocation is not an option for this position + We are interested in every qualified candidate eligible to work in the United States. **Responsibilities:** + Hands-on development, calibration, validation, and application of travel demand models (trip-based and/or activity-based) + Implement, enhance, and maintain travel-demand models + Apply and refine mode choice models and advanced discrete choice frameworks + Develop and apply dynamic traffic assignment (DTA) and multimodal modeling approaches + Contribute to or develop model components, tools, or extensions in C++ or other high-performance languages, as appropriate + Diagnose and resolve model and code issues, ensuring robust, efficient, and reproducible outputs + Support integration between modeling platforms, scripting environments, and core software components + Lead technical discussions with clients while remaining actively involved in analytical work + Provide technical mentorship through code reviews, modeling guidance, and collaborative problem-solving + Contribute to automation, performance optimization, and workflow improvements + Support proposal development and technical approach writing **Qualifications** **Minimum:** + Bachelor’s degree in Engineering, Transportation Planning, Applied Mathematics, Computer Science, or related field, + 8 years of directly relevant, hands-on experience in travel demand modeling or demonstrated equivalency of experience and/or education.