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Staff Security Engineer

Affirm

Remote US Remote permanent

Posted: December 17, 2025

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Job Description

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

What You'll Do:


Partner with Product teams to ensure that products are designed, built, and operated securely;


Specific duties include: building and architecting security software;


Partnering with the Product teams to ensure that security is included in every phase of the product development lifecycle;


Conducting threat modeling activities with Product teams to ensure product threats are understood, documented, and mitigated;


Conducting reviews of product architecture to ensure products are developed securely;


Conducting security reviews of product cloud services configuration and providing secure cloud configuration guidance for Product teams;


Assisting Product teams in the development of security focused test cases to enforce security requirements;


Advising Product teams on business security requirements early in the product development lifecycle;


Reviewing and analyzing product source code to identify security vulnerabilities and providing recommendations for secure implementation;


May telecommute.

What we look for:

• Bachelor's degree (or foreign equivalent) and five years of experience. Must have experience with:


Using software development and delivery techniques to develop cloud-based services;


Conducting threat models for complex, distributed products using standard threat modeling techniques and methodologies;


Standard authentication mechanisms, including SAML and OAuth2; and


Knowledge of continuous integration/continuous deployment (CI/CD) processes and tools.

Base Pay Grade – P

Equity Grade - 7

Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.

Base pay is part of a total compensation package that may include equity rewards, monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents.)

USA base pay range (CA, WA, NY, NJ, CT) per year: $ 225,000-$275,000
USA base pay range (all other U.S. states) per year: $ 200,000-$250,000

#LI-DNI

Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include:

• Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents

• Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses

• Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge

• ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount

We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.

[For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.

By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein.

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