Member of Technical Staff (Software Engineer, Monetization)

• As a monetization engineer at Perplexity, you’ll own the abstractions that let product teams ship new SKUs, run pricing experiments, and convert users into paying customers, without needing to understand billing internals
• The usage-based billing system this team owns is foundational to Perplexity Computer and our agentic products: metering every agent action in real time, enforcing credit budgets, and settling costs across entirely new interaction models
• You’ll work across subscriptions, usage-based billing, and enterprise contracts to ensure every revenue path is reliable, observable, and easy to extend
• Tech Stack: Python | Go | Stripe | PostgreSQL | AWS | Docker
• Design, build, and own the billing platform and monetization systems that power Computer and every paid experience across Perplexity
• Lead features end-to-end, from problem definition through technical design, implementation, and launch, including the billing API abstractions that let product teams ship new SKUs, pricing models, and monetization experiments with minimal friction
• Build and operate the subscription, invoicing, and usage-based billing systems that serve millions of users across consumer and enterprise plans
• Hill-climb on reliability: tiered SLOs organized by customer impact, proactive monitoring, and alerting to catch revenue-affecting issues before customers do
• Partner closely with Finance, Data Science, Growth, Security, Support, and go-to-market teams to keep billing data accurate, auditable, and compliant, and to expand payment method coverage and optimize authorization rates globally
• Build internal tooling that empowers Support and Finance to diagnose and resolve billing issues quickly

Preferred experience

• Experience with relational databases (PostgreSQL) and making data-informed decisions to prioritize work
• Demonstrated experience and appetite for building in-house billing solutions that rival leading best-in-class buy options
• 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
• Deep familiarity with payment processors (Stripe, Square, etc.), including subscriptions, invoicing, disputes, refunds, and webhooks
• Direct experience building or scaling billing, payments, subscription, or monetization systems
• Track record of cross-functional collaboration with Finance, Support, or Growth stakeholders
• Strong backend engineering skills in Python with the ability to reason about complex distributed systems
• Genuine interest and adoption of AI products and willingness to learn quickly
• 4+ years of professional software engineering experience
• 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