Principal Product Manager, Payments

<div class="content-intro"><p>Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. It’s hard to believe that it’s 2026 and paying rent on time is expensive, inflexible, and difficult. We’re here to change that! Flex enables our users to pay rent throughout the month on a schedule that better fits their finances and budget. Our mission is to empower as many renters as possible with flexibility over their most significant recurring expense. After deliberately keeping a stealth profile as we built up unprecedented investor support and an enthusiastic user base, we are looking for motivated individuals to help us keep our mission growing. Will you be a part of the team?</p></div><h2><strong>About the Role</strong></h2> <p>We're hiring a <strong>Principal Product Manager, Payments</strong>&nbsp;to lead one of the most critical areas of our infrastructure: how money flows in and out of Flex. You will oversee our end-to-end payments platform - including transaction processing, payment-related fraud and disputes - and ensure it evolves into a strategic growth and margin lever.</p> <p>This role is ideal for someone who thinks in platforms and systems, understands payment mechanics, and knows how to balance user experience, risk, and cost. You’ll work closely with Platform and Risk leadership to drive innovation and performance across payment rails, dispute automation, and fraud prevention, while enabling seamless user experiences and future expansion.</p> <h2><strong>What you’ll do</strong></h2> <ul> <li><strong>Shape the cross-functional platform product strategy</strong>. Map how future products fit together into a coherent architecture, and help ensure they’re built with speed and stability in mind.</li> <li><strong>Own Flex’s payments platform strategy and roadmap</strong> end-to-end: vaulting, authorization, processing, reconciliation, and refunds across all payment methods (card, wallet, ACH).</li> <li><strong>Drive down payment processing costs</strong> through better routing, smarter retry logic, and fraud/dispute efficiency - without sacrificing UX or resilience.</li> <li><strong>Build and scale fraud detection and dispute infrastructure</strong> to reduce losses while minimizing false positives and user friction.</li> <li><strong>Expand our payment method coverage</strong>, ensuring all channels (cards, bank transfers, wallets) are supported with the right controls, guardrails, and visibility.</li> <li><strong>Partner with Risk, Finance, Ops, and Engineering</strong> to align on business goals and build resilient, compliant, and scalable payment solutions.</li> <li><strong>Lead and grow a high-performing pro