Remote CIAM Security Engineer II

Affirm, Inc.; United States; Remote; USD 146,000 - 225,000; Full time

Benefits offered by this job

Remote-first with country-wide focus

100% covered health insurance for you/

Monthly tech stipend

Employee stock purchase plan (ESPP)

Generous holiday calendars

Job summary

Affirm, Inc. is hiring a mid-level Software Engineer focused on customer authentication. You will build backend services powering registration, login, and account lifecycle for B2C and B2B experiences, with emphasis on security fundamentals and reliability.

You’ll work with Okta, Auth0, ForgeRock, and modern identity tech, writing code and automating tests. Join a remote-first team that values mentorship, code quality, and collaborative problem-solving.

Qualifications

• Writes, tests, and debugs software in Python, Kotlin or similar language.
• Foundational backend development concepts: APIs, data structures, databases, version control.
• Interest in authentication, security and CIAM concepts; prior CIAM experience is a plus.
• Willing to learn via mentorship and code reviews; strong communication is essential.

Responsibilities

• Build and ship customer-facing authentication features—from smoother login experiences to MFA and device binding.
• Develop backend services and APIs in Python or Kotlin.
• Work with identity tech like Okta, Auth0, and ForgeRock and integrate into apps.
• Take features through the SDLC: design, code, test, review, and deploy with the team support.
• Debug services, improve reliability, and use logs/metrics to monitor production behavior.
• Collaborate with engineers, product and security teams and grow skills in authentication.

Skills

Python

Kotlin

Backend development

APIs

Identity concepts

Education

Bachelor’s degree or equivalent practical experience

Tools

Okta

Auth0

ForgeRock

Job description

Affirm, Inc. is hiring a mid-level Software Engineer focused on customer authentication. You will build backend services powering registration, login, and account lifecycle for B2C and B2B experiences, with emphasis on security fundamentals and reliability.

You’ll work with Okta, Auth0, ForgeRock, and modern identity tech, writing code and automating tests. Join a remote-first team that values mentorship, code quality, and collaborative problem-solving.