Frontend Engineer – JS SDK & Checkout UX

Affirm; United States; Remote; USD 85,000 - 120,000; Full time

Job summary

Affirm is building a fast, reliable, and secure frontend platform for checkout experiences. The role focuses on expanding our JavaScript SDK and frontend UI components used by merchants across diverse stores.

You will own feature work end-to-end, collaborating with product, design, and analytics, while improving performance, tooling, and developer experience. Strong communication and ownership are essential.

Qualifications

• 1.5+ years of software engineering experience.
• Experience shipping web apps with declarative UI frameworks (React/Vue).
• Experience designing, developing and launching APIs at scale.

Responsibilities

• Break down projects into tasks with milestones and collaborate for on-time delivery.
• Collaborate with product, design, and analytics on requirements and trade-offs.
• Maintain and monitor team artifacts, and support on-call rotation.

Skills

React

Vue

JavaScript

TypeScript

API design

Code reviews

Ownership

Education

Bachelor’s degree in related field

Tools

Python

Kotlin

Job description

Affirm is building a fast, reliable, and secure frontend platform for checkout experiences. The role focuses on expanding our JavaScript SDK and frontend UI components used by merchants across diverse stores.

You will own feature work end-to-end, collaborating with product, design, and analytics, while improving performance, tooling, and developer experience. Strong communication and ownership are essential.