4+ years of professional software engineering experience
Direct experience building or scaling billing, payments, subscription, or monetization systems
Deep familiarity with payment processors (Stripe, Square, etc.), including subscriptions, invoicing, disputes, refunds, and webhooks
Demonstrated experience and appetite for building in-house billing solutions that rival leading best-in-class buy options
Strong backend engineering skills in Python with the ability to reason about complex distributed systems
Experience with relational databases (PostgreSQL) and making data-informed decisions to prioritize work
Strong product judgment, you translate user and stakeholder problems into simple, effective technical solutions
Self-motivated with strong ownership instincts, you ship major features ahead of schedule and drive improvements without asking for permission
Track record of cross-functional collaboration with Finance, Support, or Growth stakeholders
Genuine interest and adoption of AI products and willingness to learn quickly
2+ years of hands-on experience with the Stripe APIs and SDKs
Experience with usage-based or metered billing models, especially metering agent actions, tokens, or other non-traditional units
Experience with Apple and Google Play in-app purchase billing
Familiarity with growth experimentation and PLG/self-serve SaaS monetization
Experience building platform constructs that support pricing experiments and A/B testing
Full-stack experience (our frontend is Next.js/React/TypeScript)
Experience in a regulatory or compliance-heavy billing environment
Time spent at a fast-growing startup or on a high-ownership engineering team
Python | Go | Stripe | PostgreSQL | AWS | Docker