Senior Software Engineer - Enterprise Architecture
$123k - $215.3k/yr+ Bonus
Senior
Bachelor's
Phoenix, AZ, USA
In Person
Software EngineeringFull-Stack Engineering
No H1B Sponsorship
About the job
Requirements
- Six or more years of professional software development experience, with strong expertise in Java and working knowledge of Python for backend or data-driven applications.
- Deep experience with Java ecosystems and frameworks such as Spring and Spring Boot, or equivalent.
- Proven full-stack development experience, including backend services and modern frontend frameworks such as React or Angular.
- Strong experience building RESTful APIs, microservices architectures, and service-to-service integrations.
- Solid understanding of distributed systems, concurrency, scalability, and performance optimization.
- Hands-on experience with relational databases such as PostgreSQL, MySQL, or Oracle, and/or NoSQL databases such as Cassandra, DynamoDB, or MongoDB.
- Experience with containerization and orchestration using Docker and Kubernetes.
- Familiarity with infrastructure-as-code tools such as Terraform or CloudFormation.
- Experience with messaging and streaming platforms such as Kafka, RabbitMQ, or JMS.
- Practical experience with cloud platforms such as AWS, Azure, or GCP and cloud-native development patterns.
- Hands-on experience in test data generation and unit test development and execution.
- Experience with API design standards, OpenAPI/Swagger, versioning, and contract-driven development.
- Hands-on experience with CI/CD pipelines and tools such as Jenkins, GitHub Actions, or GitLab CI.
- Proficiency in Agile/Scrum methodologies and modern software development lifecycle practices.
- A bachelor's degree in computer science or engineering, or equivalent practical experience.
- Employment eligibility to work in the United States is required; American Express will not pursue visa sponsorship.
Responsibilities
- Design, develop, and deliver scalable, high-quality full-stack software solutions, using Java and Python for enterprise-grade platforms and services.
- Lead the architecture and implementation of distributed systems, ensuring performance, reliability, and maintainability.
- Own end-to-end feature delivery, from design and development through deployment, monitoring, and production support.
- Act as a senior member of an Agile team, driving best practices in coding standards, testing, documentation, and continuous delivery.
- Mentor and guide junior engineers through code reviews, design discussions, and knowledge sharing.
- Collaborate with architects, product managers, and cross-functional teams to translate business requirements into scalable technical solutions.
- Build and evolve RESTful APIs, microservices, and event-driven systems, ensuring strong service contracts and backward compatibility.
- Improve CI/CD pipelines, test automation, and developer productivity.
- Identify system bottlenecks, debug complex issues, and drive root-cause analysis and long-term fixes.
- Design systems for scalability, resilience, and observability, including monitoring, logging, and alerting strategies.
- Contribute to cloud-native adoption, including containerization, infrastructure-as-code, and auto-scaling architectures.
- Influence technical direction by proposing innovative, pragmatic solutions.
- Take ownership and accountability for delivering high-impact outcomes aligned with team and organizational goals.
Desired Qualifications
- Basic understanding of AI/ML concepts and generative AI technologies, including large language models, prompt engineering, and Retrieval-Augmented Generation (RAG).
- An advanced degree is a plus.
About the company
American Express issues credit and pay-in-full charge cards to consumers and businesses, and unlike most card issuers it also runs the payment network its cards use. Its Travelers Cheque, launched in 1891, made carrying money abroad safer, and in 1959 it became the first major issuer of plastic cards. Cardholders earn points toward flights and hotels plus perks such as airport lounges, while companies use its corporate cards for employee travel and expenses. American Express earns a fee from merchants on each purchase, plus annual fees and interest on balances cardholders carry. Henry Wells and William Fargo, who later started Wells Fargo, co-founded it in 1850 as a freight delivery business; it is based in New York City.
Company Size
10,001+
Company Stage
IPO
Headquarters
New York City, New York
Founded
1850
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Simplify's Take
What believers are saying
- Customers pay up for premium cards: annual card fee revenue rose 15% to $2.9 billion in the June 2026 quarter.
- Hybrid dominates listings: 408 of Amex's 451 roles in October 2026 mixed office and home days.
- Room to grow in AI: Amex listed 56 AI and machine-learning jobs among 451 openings in October 2026.
What critics are saying
- Stock grants lost value: Amex fell 17% through October 8, 2026; Visa rose 7% over the same period.
- Generosity is expensive: rewards, perks and partner payments took 45% of revenue in the June 2026 quarter.
- Regulators are watching closely: Amex's bank agreed to a $350 million penalty over money-laundering controls in October 2026.
What makes American Express unique
- Merchants pay more than borrowers: merchant fees were 52% of Amex's revenue in the June 2026 quarter, interest 24%.
- It leans on one airline: Delta-branded cards were 13% of Amex card spending and 21% of its loans in 2025.
- Most staff work outside the US: 50,900 of Amex's 76,800 employees were abroad at the end of 2025.
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Benefits
- Health Insurance
- Dental Insurance
- Vision Insurance
- Life Insurance
- Disability Insurance
- Unlimited Paid Time Off
- Flexible Work Hours
- Hybrid Work Options
- Paid Vacation
- Paid Sick Leave
- Paid Holidays
- 401(k) Company Match