Senior Software Engineer, Frontend (Auth Experiences)

Affirm

🌐 Remote💼 Full-time💰 $153,000–$213,000🗓 2026-09-10 → 2026-09-25

Core

Own and deliver high-availability, low-latency authentication, verification, and fraud systems for Affirm customers.

Role type

Senior full-stack engineer (frontend focus)

Builds

Authentication, verification, and fraud journey interfaces (web and mobile)

Domain

Fintech / Payments

Deliverable

production ML models | product features

Required skills

React or Vue, JavaScript/TypeScript, technical planning, large codebase navigation, code review standards, team leadership

Preferred skills

None stated

Technologies

React, Vue, JavaScript, TypeScript

Responsibilities

Lead engineers through ambiguity to solve open-ended problems; collaborate with product management and design on technical constraints; identify and solve project/process/technology issues; monitor team artifacts and support on-call efforts; set code review and design standards; develop talent on the team

Seniority

Senior, hands-on IC with leadership

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About Affirm

Financial Services3128San Francisco, California, USFounded 2012

At Affirm, we’re using today’s technology to bring significant disruptive innovation to the financial industry. We focus on improving the lives of consumers by delivering simple, honest and transparent financial products. We have roles across a variety of teams, including engineering, product, finance, operations, revenue, marketing, people and more. A note to applicants: Fake job and recruiting scams are on the rise. Affirm will never ask you to pay any upfront fees or send you any checks to purchase equipment during any part of the recruiting process. Affirm only uses legitimate company emai