Ethos is a new expert network built by a McKinsey/SoftBank/DeepMind team and backed by world-leading investors. We connect experts with investors for paid expert calls and advisory opportunities. We are seeking procurement managers with 4+ years of experience to help train AI models on professional documents, spreadsheets, and slide decks, including RFP/RFQ drafting, vendor scoring, and spend analytics. This is a remote, adaptable, part-time engagement starting ASAP.