We are seeking a Senior Network Test & Certification Engineer with deep expertise in network modeling, simulation, cloud, and automation, and the ability to leverage Generative AI (GenAI) technologies to streamline testing workflows, accelerate certification processes, and optimize network designs. This position plays a critical role in ensuring all network changes are thoroughly validated for performance, reliability, and compliance before deployment into production. In this role, you will collaborate closely with Global Network Engineering and Operations teams to test and certify network changes and new designs using advanced network modeling tools. Acting as a technical specialist, you will work independently or as part of a team, requiring only minimal guidance in complex scenarios. Some travel (up to 10%) may be required for training, project-related activities, and vendor engagements.