Customer Success Manager

Plain is redefining customer support for the next generation of B2B companies. We're building the fastest, most powerful platform to help companies move beyond reactive support and build real customer relationships. Some of the world's most forward-thinking companies — including Cursor, Ashby, Vercel, and Granola — use Plain to unify customer interactions, collaborate faster, and supercharge their workflows with AI. We're a small, tight-knit team with offices in San Francisco and London, and teammates across Europe. This role is hybrid (3 days in-office) from our San Francisco office. You'll be joining our Customer Success team to own onboarding and account management for our top-tier customers. Your focus is making sure these customers get to value fast, stay deeply engaged with Plain, and have a world-class experience throughout. This is a hybrid role that spans onboarding, account management, product feedback, and cross-functional collaboration. You'll work hand-in-hand with sales, product & engineering, and support.