Senior Billing Manager

Retell AI Billing OwnerRetell AI transforms customer experience with voice AI for enterprises, including customers like CVS/Aetna, American Airlines, Lenovo, and Grab. We have more customer stories than we can tell!We're hiring our first billing owner. Revenue has grown from $5M to $80M ARR in under two years, with enterprise and usage-based contracts now flowing through the business. You'll build billing, AR from scratch: the processes, systems, and controls, and eventually the team.This hire owns enterprise accounts receivable, built from zero to one: invoices out on time, cash in predictably.Build the enterprise AR process from scratch: invoicing, collections cadence, and cash application.Own collections for enterprise accounts: aging, DSO, and disputes.Set up invoicing for large contracts, including committed-spend and usage-based terms.Work with Sales, Customer Success, and customers' AP teams on escalations.Choose and set up the AR and billing tools; automate what you can.Guide the contract accountants and report on AR health.Must have:6+ years in AR, billing, or collections, including enterprise B2B.Has built an AR or collections process from scratch at a high-growth SaaS or usage-based company.Hands-on with billing and finance tools (e.g., Stripe, NetSuite, QuickBooks).Confident working with large customers' AP and procurement teams.Solid accounting fundamentals: AR aging, cash application, reconciliations.Nice to have:Experience with usage-based or committed-spend contracts.CPA or audit experience.First finance ops hire at a startup.We care less about checkboxes and more about:Zero-to-one building: how you set up AR where none existed.Collections results: lower DSO and fewer aged balances.Judgment with large enterprise customers in invoice disputes.Ownership under ambiguity.You might thrive if:You'd rather ship a v1 in a week than plan for a month.You're equally at home in a spreadsheet and on a call with a customer's AP team.You want to set the foundation for how we get paid.Cash: $190,000 - $230,000Equity: 4-year vest / 1-year cliffLocation: Redwood City, California (Relocation support provided)US Visas: Retell AI is open to sponsoring work authorization for qualified candidates, including H-1B, TN, L-1, E-3, and F-1 (OPT/CPT).Other benefits:100% coverage for medical, dental, and vision insurance$70/day DoorDash credit for breakfast, lunch, dinner, and snacks$200/month wellness reimbursement (gym, fitness classes, etc.)$300/month commuter reimbursement (gas, Caltrain, etc.)$75/month phone bill reimbursement$50/month internet reimbursementCompensation philosophy:Best offer upfront: Choose from three cash-equity balance options; no negotiation neededTop 1% talent: Above-market pay (top 5th percentile) to attract exceptional buildersHigh ownership: small teams, >$1M revenue per employee, and significant equityPerformance-based: Offers tied to interview performance, not tenure or past salaryInterview process:Recruiter round: background and a basic process design discussion (billing-to-cash flow)First round (45 min): usage-to-invoice reconciliation working session; be ready to share your screenSecond round (30 min): hiring manager conversationOnsite (about 3 hours):