Sr Software Engineer I

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. American Express Global Payment Network powers real-time, low-latency card transactions worldwide and is investing in next-generation, cloud-native, AI-enabled platforms to drive innovation, operational excellence, and the future of global commerce. As a Senior Engineer, you will be a hands-on technical leader responsible for designing, developing, and delivering highly scalable, resilient, and secure full-stack applications that power our Global Payment Network platform. You will help shape the future of software engineering by leveraging modern cloud technologies, distributed systems, and AI-enabled development practices. Working closely with Product Owners, Architects, Data Scientists, and Engineering teams, you will build intelligent, customer-centric solutions that drive business growth while maintaining the reliability, performance, and security expected of a world-class payments platform. Technical Leadership & Engineering Excellence Serve as a technical leader within Agile teams, driving architecture, software design, code quality, automated testing, and continuous integration practices. Design and develop highly available, fault-tolerant, low-latency distributed systems and full-stack applications. Lead technical design discussions, perform code reviews, mentor engineers, and promote engineering best practices. Debug complex software issues and drive resolution of production incidents and performance bottlenecks. Take ownership of team outcomes, contributing to delivery excellence, operational reliability, and engineering effectiveness. Full Stack Development Build and maintain modern web applications using React, Redux, JavaScript/TypeScript, Java, and related technologies. Design and develop scalable APIs, microservices, and event-driven solutions. Collaborate across engineering teams to deliver secure, high-performing, and customer-focused digital experiences. Support applications throughout the software development lifecycle, including production operations and continuous improvement. AI-Enabled Engineering & Innovation Leverage AI-assisted development tools, autonomous coding agents, and intelligent engineering workflows to improve productivity, quality, and delivery velocity. Identify opportunities to incorporate AI-driven capabilities, automation, and intelligent decision-making into products and engineering processes. Build proofs of concept and evaluate emerging technologies, AI frameworks, and open-source solutions. Champion a culture of innovation, experimentation, continuous learning, and data-driven decision-making. Collaboration & Influence Partner with Product, Architecture, Platform, and Engineering teams across multiple locations to deliver strategic initiatives. Drive technical strategy and influence engineering decisions through strong communication and stakeholder engagement. Challenge conventional approaches and foster an environment that encourages innovation and continuous improvement. As part of our diverse tech team, you can architect, code and ship software that makes us an essential part of our customers’ digital lives. Here, you can work alongside talented engineers in an open, supportive, inclusive environment where your voice is valued, and you make your own decisions on what tech to use to solve challenging problems. Amex offers a range of opportunities to work with the latest technologies and encourages you to back the broader engineering community through open source. And because we understand the importance of keeping your skills relevant, we give you dedicated time to invest in your professional development. Find your place in technology on #TeamAmex Minimum Qualifications Bachelor’s degree in computer science, Information Systems, or related field, or equivalent practical experience. 8+ years of professional software development experience. 5+ years of hands-on UI development experience. Strong expertise building modern front-end applications using React, Redux, JavaScript, and related web technologies. Experience developing enterprise applications using Java and/or Node.js. Strong understanding of software engineering principles, object-oriented design, and distributed systems. Experience designing and building RESTful APIs, microservices, and event-driven architectures. Experience working in Agile development environments. Experience with NoSQL databases and distributed technologies such as Redis, Kafka, Cassandra, Couchbase, or equivalent platforms. Preferred Qualifications Experience building cloud-native applications using Docker, Kubernetes, OpenShift, or similar platforms. Experience supporting large-scale, high-availability production systems. Knowledge of distributed system observability, tracing, monitoring, and performance optimization. Experience with DevOps practices, CI/CD pipelines, Jenkins, Git, and related tooling. Familiarity with Generative AI, Large Language Models (LLMs), AI-assisted development tools, and emerging Agentic AI concepts. Excellent communication, presentation, and stakeholder management skills. 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.