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Member of Technical Staff (Software Engineer, Monetization)

San Francisco💼 Full-time🗓 2026-04-23 → 2026-07-30

Core

Design, build, and own the billing platform and monetization systems that power Perplexity Computer and every paid experience, enabling product teams to ship new SKUs and pricing experiments without understanding billing internals.

Role type

Senior IC backend software engineer (monetization & billing platform)

Builds

Usage-based billing system, subscription management, invoicing, and payment settlement infrastructure for agentic AI products

Domain

AI / SaaS / Payments

Deliverable

production ML models | product features | infrastructure

Required skills

Python, distributed systems, relational databases (PostgreSQL), payment processors (Stripe), backend engineering, product judgment, cross-functional collaboration

Preferred skills

usage-based/metered billing models, Apple/Google Play in-app purchase billing, growth experimentation, A/B testing, Next.js/React/TypeScript, regulatory/compliance-heavy billing environments

Technologies

Python, Go, Stripe, PostgreSQL, AWS, Docker

Responsibilities

Design and implement billing API abstractions for new SKUs and pricing models; operate subscription and usage-based billing systems serving millions of users; maintain reliability via tiered SLOs and proactive monitoring; partner with Finance, Data Science, and GTM teams to ensure billing accuracy and compliance; build internal tooling for Support and Finance to diagnose billing issues

Seniority

Senior, hands-on IC

Rewrite
## Responsibilities - 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. ## Requirements - 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. ## Nice to Have - 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. ## Benefits - Craftsmanship. We build high quality, tasteful products targeting both the AI native and AI curious. - Ownership. You identify the problem, design the solution and ship it. - Entrepreneurship. We think like founders, act with urgency, and hustle to deliver for each other and our users. - Scholarship. Work among highly talented peers, pursuing knowledge and truth, upleveling ourselves, our teams, and our products. - Partnership. We amplify each others' strengths, break down silos, and give selflessly to help our colleagues deliver excellence.
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