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Senior Transportation Planner / Engineer – Travel Demand Modeler

Arlington, VA, us💼 Full-time🗓 2026-10-02 → 2026-10-07

Core

Develop, calibrate, and apply travel demand models (trip-based and activity-based) for transportation planning projects across the Mid-Atlantic and nationwide.

Role type

Senior hands-on IC transportation modeler

Builds

Travel demand models and dynamic traffic assignment tools for public and private sector clients (via careerplan.io/jobs/744000153186019-senior-transportation-planner-engineer-travel-demand-modeler-at-aecom)

Domain

Transportation planning and modeling

Deliverable

production ML models

Required skills

Travel demand modeling, Dynamic traffic assignment (DTA), Activity-based modeling (ABM), C++ development, Python/R scripting, GIS (ArcGIS/QGIS), Large dataset processing, Excel

Preferred skills

COG/TPB Gen2/Gen3 models, MPO/DOT experience, Master's/PhD, Tolling/managed lane modeling, Big data processing, Cloud environments (AWS/Azure), Visualization tools (Power BI/Tableau)

Technologies

Cube, TransCAD, VISUM, TRANSIMS, DTALite, DynusT, C++, Python, R, ArcGIS Pro, QGIS, AWS, Azure, Power BI, Tableau

Responsibilities

Develop and calibrate travel demand models, Implement and maintain modeling platforms, Diagnose and resolve code issues, Lead technical discussions with clients, Provide technical mentorship, Contribute to automation and workflow improvements

Seniority

Senior, hands-on IC with mentorship responsibilities