JavaScript Engineer

One App Engineer 

Our Software Engineers not only understand how technology works, but how that technology intersects with the people who count on it every day. Today, innovative ideas, insight and new perspectives are at the core of how we create a more powerful, personal and fulfilling experience for all our customers. So if you’re interested in a career creating breakthrough software and making an impact on an audience of millions, look no further.

One App is the enterprise web framework that powers American Express’s digital experiences. It’s a fresh take on web application development which consists of a Node.js server that serves up a single page app built using React components and makes use of Holocron, our library for building and composing microfrontends) to allow for code splitting via independently developed, tested, and deployed Holocron Modules (microfrontends). 

Our goal is to provide a web application framework for building fast, scalable, secure, and modular experiences. Leaving the tooling to us so our users can focus on what matters - delivering performant, maintainable  digital experiences. 

How will you make an impact in this role? 

We are looking for a JavaScript engineer who has great understanding of Node.js & React. Here’s just some of what you’ll be doing: 

• Developing an enterprise web framework
• Providing support for said framework to 1,000+ engineers, including training
• Designing intuitive, functional and extensible APIs
• Building cross platform components and libraries for future reuse and open source
• Optimizing software for maximum performance across a vast array of web-capable devices and browsers as well as servers.
• Automating builds, testing, deployments and otherwise manual processes
• Thoroughly reviewing pull requests and identifying breaking changes 

Minimum Qualifications: 

• Ability & aptitude for solving complex problems with simple solutions
• Forward thinking that anticipates the needs of our users & the enterprise
• Communication skills to teach users, both in writing and speaking
• Open source mindset, understanding of how/when to split functionality into reusable libs that can benefit the whole OSS community beyond the enterprise
• Strong proficiency in JavaScript, Node.js & React, including DOM manipulation and the JavaScript object model
• Knowledge of Accessibility and Web Standards
• Understanding of React and its core principles
• Familiarity with newer specifications of ECMAScript
• Experience with common JavaScript development tools such as Babel, Webpack, NPM, yarn, etc.
• Experience with Github Actions and understanding of DevOps practices and CI/CD pipelines.
• Experience writing automated tests including unit, integration, visual and performance testing.
• Ability to understand business requirements and translate them into technical requirements
• Ability to perform benchmarking and optimization
• Stay updated with the web frameworks and industry trends 

Preferred Qualifications: 

• Experience architecting & building and high performance, high quality software designed for enterprise capacity.
• Has existing OSS contributions or created libraries that work outside of their application.
• Solid grasp of security best practices
• Knowledge of performance optimization techniques