Sr Software Engineer II - Full Stack - The Card Shop

🏢 About American Express

American Express is a globally integrated payments company that delivers products, insights, and experiences to consumers and businesses worldwide. Amex Tech powers these critical financial services with a culture focused on engineering craft, open source contribution, and high-availability digital products.

🎯 The Role

As a Senior Software Engineer II / Tech Lead in the Card Shop organization, you will lead the architecture and engineering of American Express's primary card acquisition and discovery surfaces. Operating as a full-stack React and Node.js shop, your work directly shapes the digital storefront where millions of prospective cardmembers evaluate and select Amex products.

🛠️ Tech Stack

• React, Redux, modern JavaScript (ESNext)
• TypeScript, Node.js, Express, REST APIs
• Jest, Mocha, automated testing frameworks
• Web performance, responsive layouts, accessibility (WCAG)
• Agile methodologies, CI/CD, and DevOps practices

💼 What You'll Do

• Architect, design, and deliver complex user-facing features across American Express digital acquisition surfaces.
• Provide hands-on technical leadership, guiding architecture standards and code quality across squad engineers.
• Build performant, secure, and accessible React interfaces paired with resilient Node.js services.
• Partner with Product Managers, UX Designers, and Site Reliability teams to translate business requirements into clean technical solutions.
• Conduct code reviews, establish testing automation, and mentor fellow software engineers.
• Investigate production issues, perform root-cause analysis, and systematically retire technical debt.

✅ What You'll Need

• 9+ years of professional software engineering experience building and scaling production web applications.
• Demonstrated background driving system design, technical direction, and end-to-end feature delivery.
• Deep hands-on expertise with JavaScript, TypeScript, modern React, and Redux state management.
• Proven server-side engineering experience with Node.js, Express, and RESTful architectures.
• Experience establishing automated testing suites using Jest, Mocha, or comparable tools.
• Strong commitment to web accessibility, UI resilience, and performance optimization.
• Note: U.S. employment authorization is required as visa sponsorship is not offered for this role.

🌟 Nice to Have

• Prior experience leading distributed agile development teams or mentoring junior engineers.
• Background in high-conversion e-commerce funnels or financial services digital products.