Vertex O-Series Consultant

We are seeking an experienced Vertex O-Series Consultant with strong functional and technical expertise in implementing, configuring, integrating, and supporting Vertex solutions in complex enterprise environments. The ideal candidate should have experience supporting high-volume transactions involving both digital services and physical goods.

10+ years of hands-on experience implementing, configuring, and supporting Vertex O-Series. * Deep functional and technical knowledge of Vertex tax configuration. * Strong experience with Tax Assist rules, jurisdictions, rates, exemption certificates, and reporting. * Proven experience implementing Vertex in extremely high-volume transaction environments. * Hands-on experience supporting tax scenarios for both digital services and physical goods. * Strong Vertex integration experience with SAP and custom applications. * Solid engineering background in API design, data mapping, secure integrations, and JSON/XML transformations. * Experience defining error handling, monitoring, transaction mapping, and reconciliation frameworks. * Strong architecture, analytical, troubleshooting, and communication skills.