Product Manager, Billing

About UsPiano is a global enterprise software platform powering digital business models, subscription management, and customer analytics for world-leading media and publishing brands (including The Wall Street Journal, NBCUniversal, and Le Figaro). We operate in a mature engineering and product organization leveraging SAFe 6 at scale and an AI-accelerated product management workflow.About the RoleAs the Product Manager for Billing Infrastructure, you will lead the strategic evolution of Piano’s core subscription billing engine. Piano is executing a large-scale platform transformation to replace its internal billing engine with Stripe Billing across all subscription lifecycle events.This is a deep, infrastructure-focused product role. You will manage complex billing logic — proration, upgrades/downgrades, dunning, invoicing, and tax handling — at the integration boundary between Piano’s orchestration layer and Stripe’s billing primitives, ensuring fast execution without compromising revenue accuracy.Key ResponsibilitiesStrategy & Roadmap: Co-develop and own the 3–12 month billing roadmap alongside Product Leadership, tracking Stripe's capabilities to decide when to leverage native features versus building custom logic.Program Backlog & SAFe 6: Own and prioritize the Billing Program Backlog (Features/Enablers) using WSJF/RICE frameworks; lead PI Planning and empower initiative-assigned Product Owners to execute autonomously.Billing Operations & Metrics: Define and monitor KPIs for billing accuracy, subscription lifecycle efficiency, dunning optimization, and churn reduction.Technical & Domain Alignment: Work closely with Architects, Engineering, and VP of Product to navigate Stripe Billing integration patterns, technical feasibility, and platform constraints.AI Tooling & GTM Enablement: Leverage AI tools for discovery, data synthesis, and analysis, while equipping Sales, Pre-Sales, and Customer Success to confidently market and support billing capabilities.RequirementsDeep Billing Domain Expertise: Proven PM experience managing complex subscription billing, invoicing, or recurring revenue infrastructure.Hands-on Stripe Billing Experience (Must-Have): Demonstrated track record integrating, configuring, and operating Stripe Billing at scale.Technical Billing Depth: Mastery of billing logic complexities, including proration, upgrade/downgrade workflows, multi-currency handling, tax, and revenue recognition.Agile at Scale: Experience operating within scaled frameworks (SAFe 6 preferred) and making data-driven decisions backed by ROI analyses.Fluency in English (C1+): Excellent communication and stakeholder management skills; additional European languages are a plus.AI Fluency: Active use of AI tools to accelerate market research, discovery, and product analysis.What We OfferStrategic influence over a core platform transformation impacting global enterprise clients and millions of subscribers.A mature product organization structured around SAFe 6 and modern AI-driven product management practices.Flexible hybrid work setup with a modern office in central Warsaw.Choice of employment contract (UoP / B2B), top-tier equipment (MacBook Pro or PC), and a comprehensive benefits package (private healthcare, sports card, life insurance).