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# Sr Software Engineer II

- **Company:** American Express Company
- **Location:** Phoenix, AZ, United States
- **Experience:** Expert
- **Salary:** $123,000.0 - $215,250.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Apple IOS, Mobile Application Development, Cloud Engineering, Profiling, Couchbase Servers, Enterprise Messaging Systems, NoSQL, OAuth, OpenShift, Performance Tuning, Redis, Openid Connect, Blockchain, JSON Web Token, Software Engineering, Product Software Implementation Methods, Working Model 2D, Java Application Server, Performance Testing, Software Application Programming, Vert.x, Kotlin, Containerization, Kubernetes, Low Latency, Apache Kafka, Web3.js, Functional Programming, Restful APIs, Docker
- **Published:** September 7, 2026
- **Apply:** https://www.phoenixjobs.com/job.asp?id=3385158560&tx=HT767THZ&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* 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.

Qualifications

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.

## Description

* 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., We back our colleagues with the support they need to thrive, professionally and personally. That's why we have Amex Flex, our enterprise working model that provides greater flexibility to colleagues while ensuring we preserve the important aspects of our unique in-person culture. Depending on role and business needs, colleagues will either work onsite, in a hybrid model (combination of in-office and virtual days) or fully virtually.


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