Develop scalable, testable backend tools for public transit data quality, with secondary frontend contributions. Build and maintain products such as the GTFS Validator, MobilityDatabase Web, and Mobility Feed API using Python, Java, and TypeScript/NextJS. Collaborate with product managers and open-source contributors, review code, triage issues, support cloud-native infrastructure and CI/CD, create contract-driven APIs with OpenAPI, and contribute to technical documentation and knowledge sharing.

Serve as the technical bridge for GTFS: drive specification change requests, support implementers, maintain documentation, facilitate community discussions, represent MobilityData at events, and provide technical guidance to internal teams to improve data quality and adoption.