Senior Software Engineer: Scalable Web & Mobile Apps

Affirm; Sioux Falls (SD); Remote; USD 173,000 - 233,000; Full time

Benefits offered by this job

Health coverage for you and dependents

Tech stipends for setup

Flexible time off

Employee stock purchase plan

Job summary

Affirm is hiring a software engineer to contribute across the product lifecycle, delivering web and mobile experiences with React, Vue, and React Native. You’ll design scalable APIs in Kotlin or Python, write clean, well-tested code, and help evolve our platform by collaborating with product, design, and analytics teams.

We value ownership, strong communication, and the ability to navigate a large codebase while providing thoughtful feedback through code reviews.

Qualifications

• 1.5+ years of experience as a software engineer.
• Experience shipping web apps with declarative UI frameworks (React or Vue).
• Experience shipping mobile apps with React Native (or similar).
• Experience designing, developing and launching APIs using Kotlin or Python.
• Ability to translate a problem into a multi-component solution with clean, well-tested code.

Responsibilities

• Break down large projects into tasks and deliver in phases.
• Collaborate with product, design, and analytics in ideation and decisions.
• Support operations and on-call efforts, monitor metrics.
• Contribute to team growth and participate in interviews.

Skills

React

Vue

React Native

Kotlin

Python

Clean code

Code reviews

Ownership

Communication

Education

Bachelor's degree or equivalent

Tools

React

Vue

React Native

Job description

Affirm is hiring a software engineer to contribute across the product lifecycle, delivering web and mobile experiences with React, Vue, and React Native. You’ll design scalable APIs in Kotlin or Python, write clean, well-tested code, and help evolve our platform by collaborating with product, design, and analytics teams.

We value ownership, strong communication, and the ability to navigate a large codebase while providing thoughtful feedback through code reviews.