Senior Software Engineer II

American Express • Phoenix, AZ

13h

About The Position

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. Software Engineer II designs, develops, tests, and debugs software applications, contributes to software builds, completes code reviews and automated testing to maintain high-quality standards with guidance, supports and monitors software across environments, and adheres to security and regulatory best practices.

Requirements

• Bachelor's degree in Computer Science, Computer Engineering, and/or comparable experience; advanced degree preferred
• Significant hands-on experience in application architecture / design, software development, and testing, preferably in an Agile environment within a professional environment.
• Significant hands-on experience and knowledge of Public Cloud and related technologies (AWS -EKS, AWS-Lambdas, AWS-AuroraDB, AWS Managed Services GCP, Kubernetes).
• 12+ years of proven experience using Java, Ab Initio, React, Spring, Spark, Kafka, Postgres, Ignite, Restful APIs, In-Memory Computing, IntelliJ, Couchbase, OpenSearch.
• Proficiency in front-end technologies including HTML5, CSS3, JavaScript/TypeScript, and component-based architecture
• Experience designing, and building AI-powered and Agentic AI solutions, creating Agent Skills, including LLM-based applications, AI agents, retrieval-augmented generation (RAG), prompt engineering, orchestration frameworks, vector databases, and AI service integrations.
• Hands-on experience with full stack development using Node.js, Java, Python, or similar backend technologies
• Experience building responsive, user-friendly web applications with modern UI frameworks such as React, Angular, or Vue.js
• Experience with all aspects of DevOps with ability to customize the pipeline based on product needs
• Strong engineering and professional leadership skills.
• Demonstrated ability to lead, partner, and collaborate multi-functionally across many engineering teams.

Responsibilities

• Supervises and mentors Software Engineers and cross-functional team of colleagues in specific tasks or projects, fostering their professional growth and ensuring adherence to best practices
• Provides mentorship and technical leadership to junior engineers, fostering a culture of continuous learning and improvement
• Leads the entire lifecycle of software applications and systems, ensuring high-quality delivery from inception to deployment
• Directs the technical aspects of projects, ensuring scalability, performance, and reliability
• Reviews code for accuracy, quality, and adherence to best practices, offering constructive feedback
• Establishes and enforces coding standards, development methodologies, and best practices within the team
• Identifies and resolves performance bottlenecks, ensuring optimal application performance
• Facilitate collaboration with cross-functional teams to support changes and implementations, ensuring alignment with organizational objectives
• Collaborates and co-creates effectively with teams in product and the business to align technology initiatives with business objectives

What This Job Offers

• Job Type: Full-time
• Career Level: Senior