Job Description

The Web Payment Experience team builds JavaScript SDKs and complementary UIs for developers who want to take payments with Square on their websites. Thousands of developers use our code to power the payments capabilities that millions of merchants depend on. We build the tools to make that not just possible, but also accessible. Just as front-end frameworks like React and Vue make it easier to build complex single-page apps, we’re building frameworks to simplify the complexity of taking payments on the web.

Want to learn more? See what we’ve built so far at https://developer.squareup.com/docs/web-payments/overview (and think about all the ways you can help make this experience better).

As a staff software engineer on the Web Payment Experience team, you will…

• Mentor and teach other engineers, helping mid-level developers become senior

• Set technical direction for the team, with a focus on TypeScript and JavaScript but also in Go

• Develop the JavaScript APIs and UI responsible for 1st and 3rd party developers’ experiences using our platform

• Develop and maintain the APIs for our tokenization platform, written in Go

• Work across the stack to build reliable and delightful experiences for thousands of developers and millions of Square Merchants

• Be a student of the web and browsers, keeping up-to-date with frontend engineering trends, tooling, and best practices

Qualifications

• Proven experience teaching and ramping up junior team members

• Proven experience effectively shepherding technical projects to completion.

• A desire to build Square’s developer platform, where we succeed when our merchants and developers succeed

• Expert in modern JavaScript and browser-native Web APIs

• An interest in working full-stack, from developing extensible JavaScript SDKs for the browser to building scalable backend Go services that power our tokenization platform

Nice to have:

• 1+ years of experience with payments on the web

• 1+ years of experience with browser security concepts

• 1+ years of experience with building extensible, approachable SDKs for developers

• Experience with AWS, specifically CloudFront and Lambda

Technologies we use and teach

• JavaScript

• TypeScript

• Go