The Senior Director, Global Regulatory Affairs will provide strategic regulatory leadership across Janux’s clinical-stage oncology pipeline, supporting programs from early development through registration. This individual will lead global regulatory strategy for one or more programs while influencing and partnering closely with cross-functional stakeholders to shape development plans and ensuring alignment across functions in a dynamic, fast-paced environment. This role requires a hands-on regulatory leader with deep experience in early clinical development (Phase 1/2), coordinating multiple parallel regulatory initiatives, strong health authority interaction experience, the ability to exercise judgment with decisions that have long-term impact on regulatory function success, and guide teams through ambiguity and evolving data.