Stand Together is a philanthropic community that helps America’s boldest changemakers tackle the root causes of our country’s biggest problems, from education to the economy, broken communities, and toxic division, among dozens of other pressing issues. We provide our partners with access to resources including funding, thought leadership, a network of peers, and a playbook for applying proven principles to transform lives and society. Stand Together seeks an experienced Senior Vendor Manager to strengthen its vendor management, strategic sourcing, and procurement approach, with a focus on SaaS and technology partnerships. The Senior Vendor Manager will oversee the full vendor management lifecycle, from sourcing and contract negotiations to performance management, risk mitigation, and relationship development. This individual will collaborate closely with cross-functional stakeholders to ensure vendor partnerships deliver measurable value, support business objectives, and maximize the impact of organizational resources. Serving as a senior individual contributor, this individual will play a key role in advancing the organization's vendor management function by developing scalable processes, influencing strategic decisions, optimizing spending, and driving continuous improvements that enhance operational efficiency and vendor performance.