Account Manager

ABOUT THE ROLE Antithesis is hiring Account Managers to own customer relationships after close. You will be joining a growing global team of talented Account managers, reporting to the Head of Customer Growth, partnering and working closely with Sales, Customer Experience, and Product. You help shape how post-sales account management works at Antithesis. You take responsibility for renewals and expansion from day one. You work with deeply technical customers: Engineers and Engineering Leaders, CTOs and CEOs. This is a quota-carrying role. You own revenue outcomes. WHAT YOU WILL DO: - Own a book of business from initial handoff through onboarding, adoption, renewal, and expansion - Carry a quota tied to renewals and expansion - Drive on-time renewals with clear forecasting - Identify, scope, and close expansion opportunities - Build trusted relationships with customers - Help guide customers through onboarding, adoption, and value realization - Lead post-sale commercial conversations - Own renewal terms, pricing, and expansion proposals - Partner with Customer Success and Customer Experience - Surface product feedback grounded in customer usage - Track account health, risk, and growth signals - Contribute to renewal and expansion playbooks - Operate with ownership in an early-stage environment WHAT SUCCESS LOOKS LIKE: - Strong gross and net retention - Predictable renewal forecasting - Expansion driven by real customer value - Long-term customer relationships - Clear ownership and follow-through - No surprise churn through early risk identification and proactive ownership REQUIREMENTS: - 5+ years experience in a quota-carrying Account Manager role - Experience at a B2B SaaS company - Direct ownership of renewal and expansion quotas - Proven record of meeting or exceeding ARR retention and growth targets - Experience managing a defined book of business - Experience running renewal and expansion deal cycles - Comfort owning pricing, terms, and commercial negotiations - Experience selling to existing customers, not prospects - Ability to work with technical buyers and stakeholders - Strong forecasting discipline and pipeline management - Comfort operating in a fast-moving startup STRONGLY PREFERRED - Experience with highly technical products, developer tools or infrastructure products - Experience working with engineering-led customers - Experience with usage-based or platform SaaS THIS ROLE IS NOT - A Customer Success role without quota - A support or relationship-only role - A training role for first-time sellers