Senior Security Engineer I, Application Security

Are you ready to trade your job for a journey? Become a FlyMate! Passion, excitement & global collaboration are all core to what it means to be a FlyMate. At Flywire, we’re on a mission to deliver the world’s most important and complex payments. We use our Flywire Advantage - the combination of our next-gen payments platform, proprietary payment network and vertical specific software, to help our clients get paid, and help their customers pay with ease - no matter where they are in the world. What more do we need to truly be unstoppable? Perhaps, that is you! Who we are: Flywire is a global payments enablement and software company, founded a decade ago to solve high-stakes, high-value payments in education, using modern technology. Today, we’ve digitized payments for more than 5,300 global clients across education, healthcare, travel & B2B, covering more than 240 countries and territories and supporting over 140 currencies. And, we’re just getting started! With over 1000+ global FlyMates, representing more than 40 nationalities, and in 14 offices world-wide, we’re looking for FlyMates to join the next stage of our journey as we continue to grow. The Opportunity: At Flywire, security isn’t a checkbox—it’s a foundational pillar of how we build. We are looking for a high-impact Senior Security Engineer I, Application Security to act as a technical visionary, bridging the gap between robust defense and rapid innovation. We expect this role to be able to blend traditional security architecture with new technologies like AI-driven automation. Key Responsibilities AI-Driven Security Automation: Design, prompt-engineer, and deploy automated security review workflows, using for example Claude or other LLM APIs to perform real-time code analysis and architectural reviews within our CI/CD environment. Security Design & Architecture: Lead secure design reviews and advanced threat modeling for our complex payment systems and AI integrated applications. Engineering Collaboration