Flywire
payments enablement and software
SeniorSecurityEngineerI,ApplicationSecurity
Neural analysis suggests this role is
optimal for mid candidates.
“Senior Security Engineer I, Application Security at Flywire. Skills: Application Security, AI-Driven Security Automation, Prompt Engineering, Secure Design & Architecture, Full-Stack Reviews, Automation & SDLC. Design, prompt-engineer, and deploy automated security review workflows. perform real-time code analysis and architectural reviews within our CI/CD environment”
What You'll Achieve.
deliver the world's most important and complex payments; help our clients get paid, and help their customers pay with ease; act as a technical visionary, bridging the gap between robust defense and rapid innovation; perform real-time code analysis and architectural reviews; provide context-aware security feedback
Industry & Context.
vulnerability research; address security issues; remediation guidance
What They're Looking For.
Must Have
5+ years in Application Security, Proven experience performing web application penetration tests and vulnerability research, Skills in source code auditing, product assessments, interaction with product teams, experience with development of security tools, Prompt Engineering for Security, AI Pipeline Integration, OWASP Top 10 for LLMs, Deep practical knowledge of defending against Prompt Injection, Insecure Output Handling, and Model Inversion, Full-Stack Depth, experience with Python, Ruby on Rails, Java and modern web dev (JavaScript, Node. js, etc. ), Good knowledge of AWS or similar cloud environments, containerization (Docker), building/maintaining GitLab CI pipelines, Advanced experience with SAST, DAST, and SCA tools, the ability to tune them to eliminate noise, Deep understanding of applied cryptography, OAuth2, SAML, and SSO implementations, Practical experience aligning technical controls with standards like SOC 1, SOC 2, PCI-DSS, and emerging AI-governance frameworks
Nice to Have
AI-driven automation, Claude or other LLM APIs, Kubernetes a plus
What You'll Do.
and deploy automated security review workflows
perform real-time code analysis and architectural reviews within our CI/CD environment
Lead secure design reviews and advanced threat modeling for our complex payment systems and AI integrated applications
Oversee deep-dive technical reviews
perform source code audits and live application testing on high-risk features
Contribute and take ownership for the automated security controls we are building
take an active part in every aspect of the secure software development lifecycle (S-SDLC)
Provide hands-on remediation guidance
mentor junior security or software engineers
also members of Product teams
on both traditional exploits and emerging AI-specific vulnerabilities
How You'll Work.
Team & Collaboration
Act as a technical bridge between Security and Engineering teams; Collaborate frequently with different engineering teams to identify and address security issues; interaction with product teams; treats developers and product teams as partners
Communication Scope
Strategic Communication; Ability to translate complex AI-generated findings into actionable business risks for stakeholders
Full Job Description
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 3,300+ 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 Collabo
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