Director, GTM Finance

Job description

About Customer.io Over 9,000 companies — from scrappy startups to global brands — use our platform to send billions of emails, push notifications, in-app messages, and SMS every day. Customer.io powers automated communication that people actually want to receive. We help teams send smarter, more relevant messages using real-time behavioral data. About the role Hi, my name is Diep Nguyen, VP of Finance here at Customer.io , and I'm looking for a Director, GTM Finance to own our go-to-market P&L end-to-end as we scale from $100M+ ARR today to $1B+ ARR in the future. We're hiring for strategic finance horsepower first: someone who builds models from a blank page, challenges assumptions, and earns trust with senior executives. Deep GTM fluency matters just as much — but for a strong finance generalist, that business partnership often shows up in the work rather than the title. You'll own our GTM P&L spanning Sales, Marketing, and Customer Success, and build the team behind it. We're an AI-forward company: this role requires someone energized by using AI to reinvent how finance operates, not someone who merely tolerates the tools we hand them. What we value Financial rigor over title-matching — we care more about how you've built and defended models than whether "GTM Finance" was ever your title. AI as genuine practice, not a buzzword — we want concrete stories of AI changing an outcome, not familiarity with the tools. Ownership from day one — you'll build and lead a team, not just execute analysis handed to you. Directness with data — you challenge top-down assumptions with account-level evidence, even in uncomfortable conversations. What you’ll do Own the GTM P&L end-to-end — revenue, gross margin, and opex across Sales, Marketing, and Customer Success — not just a spend-efficiency lens. Drive unit economics and the growth funnel model — CAC, LTV/CAC, payback, magic number, and cohort/retention analysis across self-serve and sales-assisted motions. Own the ARR roll-forward, bookings, and revenue forecasting — auditable, reconcilable, and independently stress-tested against top-down assumptions. Partner with Sales and RevOps on capacity planning, deal economics, and pricing — protecting margin and ARR quality without slowing deal velocity. Build and own the monthly/quarterly GTM reporting package for the exec team and Board, with variance analysis that explains…