Principal Software Engineer, Prime Video Commerce Tech

When a customer opens Prime Video anywhere in the world - on a Fire TV in Mumbai, a phone in Tokyo, a browser in Berlin - a commerce system determines if they are entitled to watch a content, what it costs, and how they pay. That system is ours. The Prime Video Commerce team in Bengaluru owns the offers and payments transaction path for hundreds of millions of customers globally. We process millions of requests per second across high double-digit countries, spanning every device type, multiple currencies, and dozens of payment methods - with four-nines availability targets. We support the full spectrum of Prime Video monetisation: ad-free and ad-enabled subscriptions, transactional purchases and rentals, channel subscriptions, with how we pay for them – every payment method in a country, and payment type – at once, in installments. This is not a role where the architecture is settled, and you maintain it. We are at an inflection point - evolving from product-line silos into a unified orchestration platform, decoupling payment logic from the commerce stack, closing the gap to four-nines availability, and shaping what comes next: better support for an agent interaction, better pricing rules and so on. We are hiring a Principal Engineer to own the end-to-end technical vision across both Offers and Payments, because a customer discovering an offer, selecting it, and completing payment is one continuous flow — and the leader who resolves the architectural fragmentation must span domains and Amazon verticals.

Key job responsibilities

• Lead the technical direction for the commerce platform’s offer-to-payment architecture, making critical decisions on system design, service boundaries, and data contracts for performance, scalability, and resilience at millions of TPS
• Define and drive a multi-year architecture transformation – to improve resiliency, monitorability, and to deliver flexibility and speed
• Be Hands on to deliver goals tracked at the Amazon executive bench level
• Drive innovation in AI/GenAI-powered commerce - designing agent-callable service interfaces, AI-native development workflows, and intelligent decision making systems
• Collaborate across multiple organizations to align technical vision and priorities, influencing decisions at VP level & above without direct authority
• Define best practices for system architecture, operational excellence, and engineering processes — maintaining high standards for software quality, availability, and cost efficiency
• Mentor and develop senior engineers toward Principal-level scope, fostering technical growth through design reviews, architecture guidance, and hands-on pairing
• Lead engineering efforts that directly improve customer experience — reducing transaction failures, improving latency, and enabling commerce at global scale