Full-Stack Engineer – Backend Leaning, Payments Engineering
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Job Description
Backend-leaning full-stack engineer building billing, usage tracking, and payment systems. Supporting ElevenLabs’ AI voice, creative, and agent platforms.
Responsibilities:
- Build and maintain usage tracking that meters requests accurately without impacting latency
- Lead migration of enterprise pricing and usage processing, including stream-processing services for usage events
- Improve customer upgrades and payments, including payments through different entities and support for new payment providers
- Work with Finance and Tax teams on compliance, audit and reporting requirements
- Enable pricing and Growth experiments with Growth and product teams
- Debug complex customer billing scenarios using customer experience, logs and code, then fix root causes
- Collaborate with Sales, FDEs, Finance and engineers across the company
- Scope projects carefully, plan migrations and roll out changes without disrupting customers
Requirements:
- No formal experience, certifications, or degrees required
- Expertise in Python
- Strong background in backend development
- Experience with APIs, cloud infrastructure tools, storage solutions, data structures, common software and system design patterns
- Strong test design and security fundamentals
- Care and attention to detail when changing live systems that handle money
- Ability to learn a large existing system quickly and debug complex production issues
- Experience solving impressively hard problems through past projects or GitHub contributions
- Bonus: experience with payment processing providers or billing and usage-based pricing systems
- Bonus: experience with stream processing or high-throughput event pipelines
- Bonus: experience working with finance, tax or audit requirements
- Bonus: experience with Kubernetes
Benefits:
- Annual discretionary professional development stipend
- Annual discretionary social travel stipend to meet colleagues
- Annual company offsite
- Monthly co-working stipend for employees not near a main hub
- Remote work or access to offices in London, New York, San Francisco and Warsaw
- Innovative culture and growth opportunities
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