Full-Stack Engineer (Backend Leaning) - Payments Engineering

ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $22B - multiples of 11, always.

We have expanded from voice into three main platforms:

• ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale.

• ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages.

• ElevenAPI gives developers access to our leading AI audio foundational models.

Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you.

The Payments team owns how ElevenLabs charges customers: billing, usage tracking, pricing and payments across self-serve and enterprise. Everything we do has to be correct, because it underpins the company's revenue and is immediately visible to every customer and team. We are hiring full stack engineers (backend leaning) to expand and evolve our payments systems. Your responsibilities might include:

• Building and maintaining usage tracking so that requests are metered accurately without impacting latency.

• Leading our migration of enterprise pricing and usage processing, including new stream-processing services for usage events.

• Making it easy for customers to upgrade and pay, including paying through different entities and supporting new payment providers.

• Working with Finance and Tax teams to meet compliance, audit and reporting requirements.

• Enabling pricing and Growth experiments with Growth and product teams.

• Debugging complex customer billing scenarios: piecing together what happened from the customer's experience, logs and code, and fixing the cause.

• Collaborating with Sales, FDEs, Finance and engineers across the company.

Much of this work extends or replaces systems that already exist, so you will scope carefully, plan migrations, and roll changes out without disrupting customers.

We do not require any formal experience, certifications, or degrees. Instead, we are seeking engineers who can show they have solved impressively hard problems, through past projects or GitHub contributions. We do require:

• Expertise in Python.

• A strong background in backend development.

• Experience with common software and system design patterns and infrastructure, including APIs, cloud infrastructure tools, storage solutions and data structures.

• Strong test design and security fundamentals.

• Care and attention to detail when changing live systems that handle money.

• The ability to learn a large existing system quickly and to debug complex production issues.

Bonus:

• Experience with payment processing providers, or with billing and usage-based pricing systems

• Experience with stream processing or high-throughput event pipelines.

• Experience working with finance, tax or audit requirements.

• Experience with Kubernetes.