Senior Software Engineer, Frontend (Upfunnel Messaging)

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.

The Upfunnel Messaging team at Affirm builds and maintains the platform for serving promotional messaging on partner merchant sites and affirm.js, our javascript library for merchant site integration. Our consumer artifacts are heavily used and represent the highest trafficked systems at Affirm; O(10k) merchants use it daily, with O(100M) requests every day.

The goal of the team is two-fold:

1. Improve the consumer experience by surfacing timely, relevant and personalized messaging during their shopping journey
2. Reduce complexity of merchant integration and improve merchants’ underwriting and monitoring capabilities through high quality tooling and useful, delightful features.

We aim to turn Upfunnel Messaging into a turnkey service, and to empower merchants to optimize and customize all aspects of their messaging strategy, enabling them to grow their business through a data centric approach.

We are looking for an experienced Senior Software Engineer to join us and help accomplish that mission. Given the scale at which our team operates, your work will be challenging, and will directly impact Affirm’s bottom line.

What You'll Do

• Build, optimize, and scale Upfunnel messaging tooling and flows. This includes data visualization, analysis, reporting, and REST APIs for accessing and editing messaging information
• Interact with stakeholders from Affirm’s Product, Design, Marketing and Commercial orgs to develop elegant, high quality solutions to create a best-in-class merchant and consumer experience
• Enable experimentation and continuous improvement on the highest trafficked library at Affirm
• Prototype new ideas and iterate towards the best customer experience

What We Look For

• 5+ years previous engineering experience
• Prior experience building and maintaining complex front-end systems with cross-browser support
• Knowledge of modern front-end tech stack (we use Javascript, Typescript, React/Redux, ES6, Webpack, CSS3)
• Prior experience with Javascript testing frameworks (jest, webdriver.io, playwright)
• Prior experience with monitoring and alerting systems (sentry.io, rollbar, chronosphere, kibana)
• Experience with building Python, Kotlin APIs is a plus
• Experience with developer facing javascript SDKs is a plus
• Experience working cross-functionally with stakeholders from Product, Design and other Engineering teams
• Strong attention to detail with a demonstrated focus on engineering resilience
• Well-developed interpersonal, written and verbal communication
• Humility and self-awareness to …