Modern Treasury
Financial Infrastructure
SoftwareEngineer-Security
Neural analysis suggests this role is
optimal for Senior candidates.
“Software Engineer - Security at Modern Treasury. Skills: Application Security, Product Security, Infrastructure Security, DevSecOps Automation. Lead application security. secure code review”
What You'll Achieve.
strengthen the controls that protect our payment infrastructure; enable as well as build secure, compliant financial products; contributing directly to the reliability and automation of our security and infrastructure systems; set the foundation for compliant, programmable money movement at scale; shape how Modern Treasury manages risk at scale; design the systems that make programmatic, compliant money movement possible; influence security strategy; drive DevSecOps automation; contribute to architectural design; ensure that as we grow into new products and payment rails, we continue to move fast while keeping trust, compliance, and safety at the core of our platform; improve security posture across CI/CD and infrastructure; embed security into the development lifecycle; keep our systems resilient and trustworthy; ensure product features meet regulatory requirements
Industry & Context.
risk management; abuse mitigation; fraud detection; fraud prevention
What They're Looking For.
Must Have
6+ years in security engineering, 3+ years focused on application and product security, Full-stack application security, Authentication and authorization systems, identity management, Infrastructure automation related to security, AWS, Docker, CI/CD pipelines, Fraud detection, prevention, abuse mitigation in payment or financial products, Secure SDLC practices, developer security tooling, incident response, security monitoring, application security for Ruby on Rails, GraphQL, JavaScript, React, containerized environments, Payments engineering experience, fraud prevention, risk controls in money movement systems
Nice to Have
2+ years in payments or fintech, money movement security challenges, compliance and regulatory standards for money movement, PCI DSS, BSA/AML, KYC/KYB, payment processing security across ACH, wires, card networks, emerging rails, controls for fraud detection, chargeback prevention, abuse mitigation in payment systems, integrating security into DevOps workflows, Buildkite, IaC, AWS security automation, stablecoin security, blockchain integrations, crypto payment rails, pragmatic risk management, business velocity, lead security initiatives across multiple teams without direct authority
What You'll Do.
Lead application security
security architecture for new products
Own product security for new payment rails
Design and implement DevSecOps tooling
Drive security architecture decisions
Build monitoring and detection capabilities
Design infrastructure monitoring
remediation practices
Collaborate with Compliance and Legal
Influence technical strategy
How You'll Work.
Team & Collaboration
Partner with engineering teams; Collaborate with Compliance and Legal; Influence technical strategy across Product, Platform, and Infrastructure teams
Full Job Description
OVERVIEW This position can be based out of San Francisco, New York, or remote (we accept candidates from the following states: AZ, CA, CO, CT, FL, GA, HI, IL, MA, MI, MN, MT, NC, NJ, NV, NY, OH, OK, OR, PA, TN, TX, UT, WA, WI). Modern Treasury’s mission is to build the most trusted financial infrastructure for global money movement. We’re looking for a Security Engineer to design and strengthen the controls that protect our payment infrastructure. You’ll enable as well as build secure, compliant financial products while contributing directly to the reliability and automation of our security and infrastructure systems. Modern Treasury is expanding deeper into money movement. We’re building new products that will let customers move funds across both traditional rails and emerging technologies, including stablecoins. You’ll help design, deploy and operate the security controls that make this possible and set the foundation for compliant, programmable money movement at scale. This role is hands-on security engineering with heavy focus on automation. ABOUT THE ROLE This role focuses on application, product, and infrastructure security, and sits at the intersection of security, platform, payments engineering, and infrastructure. You’ll shape how Modern Treasury manages risk at scale and design the systems that make programmatic, compliant money movement possible. We are looking for someone who can influence security strategy, drive DevSecOps automation and contribute to architectural design. Your work will ensure that as we grow into new products and payment rails, we continue to move fast while keeping trust, compliance, and safety at the core of our platform. WHAT YOU’LL DO - Lead application security across our payment platform, including secure code review, threat modeling, and security architecture for new products - Own product security for new payment rails, including FBO account structures, stablecoin integration, and enhanced compliance features - Design and impl
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