This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Principal Customer Success Portfolio Manager based in the United States. This is an opportunity to shape and optimize a global Customer Success service portfolio within a technology-driven environment. You will lead the development of scalable service offerings across Professional Services, Technical Success, and Support. Your work will help create consistent, high-impact customer experiences throughout the customer lifecycle. By combining data analysis, strategic planning, and cross-functional collaboration, you will improve service adoption and portfolio effectiveness. You will evaluate existing offerings, strengthen governance, and identify opportunities to align services with evolving customer needs. The role also involves applying knowledge of AI-driven solutions and industry trends to support innovation and continuous improvement. This remote position is ideal for an experienced portfolio or customer success leader who enjoys solving complex challenges and delivering measurable business impact.