AECOM is hiring a Travel Demand Modeler

AECOM is seeking a Travel Demand Modeler to join our Arlington, VA office, supporting a diverse portfolio of transportation planning and modeling projects across the Mid-Atlantic and nationwide. This role is suited for an early-career professional interested in developing technical expertise in travel demand modeling, data analysis, and modeling-related software tools. You will work within a collaborative team of approximately 10 modelers, supporting senior staff and contributing to model development, analysis, and project delivery. We are particularly interested in candidates with an interest in dynamic traffic modeling or Activity-Based Modeling (ABM), along with a demonstrated curiosity for coding and software development, including exposure to Python and/or C++. This is a hybrid work position, with flexibility depending on project needs. Key Responsibilities - Support the development, calibration, validation, and application of travel demand models (trip-based and/or activity-based) - Assist in implementing and maintaining travel demand models and related tools - Support application of mode choice models and discrete choice frameworks - Contribute to analyses using dynamic traffic assignment (DTA) and multimodal modeling approaches - Assist with data preparation, model inputs, and performance evaluation - Support troubleshooting of model runs and assist in resolving technical issues - Help ensure quality, consistency, and reproducibility of modeling outputs - Contribute to integration of modeling tools, scripts, and workflows - Assist senior staff with technical documentation, reports, and presentations - Collaborate with interdisciplinary teams of planners, engineers, and analysts