Ethos is seeking a senior investment banking expert to help train an AI language model on professional presentation and slide deck tasks. The role requires 6+ years in investment banking at SVP level or above, with a proven track record of owning pitch books and board materials for live mandates. Remote, fully adaptable schedule (5–20 hours weekly) with immediate start. Compensation is $100/hour; experience and precision are essential for crafting high-quality, investment-grade decks.