Senior Product Security Engineer — Threat Modeling & Cloud

Affirm, Inc.; Nashville (TN); Remote; USD 173,000 - 233,000; Full time

Benefits offered by this job

Health coverage for you and dependents

Monthly tech stipends

Generous time off and holidays

Employee stock purchase plan

Job summary

Affirm, Inc. seeks a Senior Product Security Engineer to partner with product and engineering teams, architect secure solutions, and improve the security of Affirm’s products.

The role emphasizes threat modeling, code review, and secure design practices across the development lifecycle. The candidate will work in Affirm’s remote-first environment with competitive total compensation, equity, and comprehensive health coverage.

Qualifications

• Deep understanding of web application architecture and design principles.
• Experience with security standards and regulated environments (PCI).
• Experience conducting threat models for complex distributed products.

Responsibilities

• Partner with product teams to embed security in the product lifecycle.
• Perform threat modeling and architecture reviews to identify mitigations.
• Review source code to identify vulnerabilities and propose secure fixes.
• Help automate security processes where possible.
• Identify new classes of vulnerabilities and propose scalable solutions.
• Develop security-focused test cases with product teams.

Skills

Threat modeling

Cloud-based services

Python

Kotlin

Java

AWS

Azure

OWASP awareness

PCI compliance

SAML/OAuth2

CI/CD

Education

BS degree in related field or equivalent experience

MS degree in related field or equivalent experience is a plus

Job description

Affirm, Inc. seeks a Senior Product Security Engineer to partner with product and engineering teams, architect secure solutions, and improve the security of Affirm’s products.

The role emphasizes threat modeling, code review, and secure design practices across the development lifecycle. The candidate will work in Affirm’s remote-first environment with competitive total compensation, equity, and comprehensive health coverage.