Sr Software Engineer II

Joining Amex Tech means discovering and shaping your contribution to something big. Here, you can work alongside talented tech teams and build a unique career with the Powerful Backing of American Express. With a range of opportunities to work with the latest technologies, and a commitment to back the broader engineering community through open source, our mission is to power your success. Because Amex Tech is powered by our technology, our culture, and our colleagues.​ ​The Technology organization enables and accelerates the company’s growth strategies, delivering global capabilities and services in support of Amex’s customers and colleagues, while maintaining 24/7 servicing and availability to ensure an uninterrupted, high-quality customer experience. Technology provides the foundation for everything we do in the company while driving differentiation through building and leveraging innovative technology and data insights.​ The U.S. Consumer Services and Membership Digital Experiences Technology team (USCDT) brings together foundational strategic technology capabilities in digital experience engineering (Mobile and Web), marketing and advertising technology, enterprise communications, travel and lifestyle, and dining technology. It employs a ground-breaking focus with development responsibilities for customer-facing capabilities that deepen and expand digital engagement, as well as core technical capabilities that cut across business lines and customer segments. We’re looking for an experienced Sr. Software Engineer ll to work on the mobile payments solutions that will be used by tens of millions of cardholders around the world. We want someone who is super creative and enjoys solving tough problems. You should be able to come up with brilliant solutions that no one else can, and be obsessive about UI/UX design and user experience.​ You’ll be part of the Digital Payments Engineering team whose mandate is to develop new products and platforms for American Express customers. Payments Engineering’s aim is to build interactive experiences at all touch points of a consumer's journey whether before, at, or after the time of purchase. The products will range from new payment vehicles and partnerships with other payment entities to interactive web experiences. Key Responsibilities & Qualifications: Perform hands-on architecture, design, development, testing, and implementation of software solutions. Serve as an active member of an Agile team, contributing to user story analysis and elaboration, application design and development, testing, and automation. Leverage modern, best-of-breed technologies to build scalable microservices that integrate with existing American Express platforms and technologies. Demonstrate a highly motivated, positive, and “can-do” attitude in a fast-paced environment. Embrace a culture of innovation and experimentation, with a willingness to explore new concepts, challenge assumptions, and learn from outcomes. Foster collaboration across multiple internal teams and work effectively with cross-functional stakeholders. Demonstrate a strong understanding of reactive and functional programming concepts. Have a solid understanding of RESTful API design principles and best practices. Possess strong hands-on expertise in Java and Kotlin. Have experience with NoSQL databases and distributed messaging technologies, such as Redis, Kafka, and Couchbase, particularly in low-latency, high-transaction-volume environments. Demonstrate a strong understanding of security fundamentals and standards, including JWE, JWS, JWT, OpenID Connect, and OAuth 2.0. Have the ability to quickly learn and deep dive into new technologies and business domains, challenge the status quo, and think outside the box. Have hands-on experience with performance testing, profiling, and tuning Java applications. Bonus Qualifications Knowledge of emerging trends, technologies, and standards in the payments industry. 6+ years of Software development experience. Knowledge of emerging trends and standards in blockchain and distributed ledger technologies. Knowledge of Web3 technologies and ecosystems. Experience with or knowledge of Vert.x. Knowledge of native mobile application development for Android and/or iOS. Knowledge of cloud-native and container technologies, including Docker, Kubernetes, and OpenShift. Depending on factors such as business unit requirements, the nature of the position, cost and applicable laws, American Express may provide visa sponsorship for certain positions.