# Senior Billing Manager at Retell Ai

> Build the enterprise accounts receivable process from zero, owning invoicing, collections, and cash application for large accounts.

- Company: Retell Ai (retellai.com)
- Location: San Francisco Bay Area
- Places: San Francisco, United States
- Posted: 2026-10-14
- Level: Senior
- Team: Billing
- Apply: https://jobs.ashbyhq.com/retell-ai/98f1dd85-1967-418f-97f1-0439870d1e4e
- Page: https://ye.saranatour.dev/jobs/senior-billing-manager-retell-ai-kn7a3z4j5b5pwpfvk3kt9fpssh8hbfek

## The posting

Senior Billing Manager
Retell Ai · San Francisco Bay Area

## **ABOUT RETELL AI**

Retell AI is using first-principles thinking to reimagine the call center with cutting-edge voice AI. Thousands of companies now use Retell's AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we've scaled to $80M in ARR with a team of 50, up from $5M at the start of 2025, and are now valued at over $1.5B.

Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we're creating intelligent AI “workers” that act as frontline agents, QA analysts, and managers, continuously executing, monitoring, and improving every customer interaction.

We're growing fast and looking for ambitious builders who want to tackle hard technical problems, move quickly, and have a real impact on one of the fastest-growing voice AI companies in the world.

Let's build the future together.

**Recent recognition:**

- [No. 1 Best Places to Work in the Bay Area, San Francisco Business Times 2026](https://finance.yahoo.com/technology/ai/articles/voice-ai-startup-retell-ai-145200025.html)
- [Top 50 AI Apps, a16z (2025)](https://a16z.com/the-ai-application-spending-report-where-startup-dollars-really-go/)
- [#3 Fastest-Growing Software Company, G2 Best Software Awards 2026](https://company.g2.com/news/g2s-2026-best-software-awards)
- [Best Agentic AI Software, G2 Best Software Awards 2026](https://www.retellai.com/blog/retell-ai-recognized-as-the-best-agentic-ai-software-by-g2)
- [#4 Fastest-Growing Software Vendor, Brex Benchmark 2025](https://www.brex.com/journal/brex-benchmark-december-2025)
- [Enterprise Tech 30 Class of 2026, Nasdaq & Wing VC](https://www.nasdaq.com/videos/retell-ai)
- [Top-Ranked Startup, Lean AI Leaderboard](https://leanaileaderboard.com/)
- [Backed by Y Combinator](https://www.ycombinator.com/companies/retell-ai)

## ABOUT THE ROLE

Retell 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.

## KEY RESPONSIBILITY

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.

## WHAT WE'RE LOOKING FOR

**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 team