Senior Mainframe & Data Engineer - Payments

MainframeMaster; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Job summary

American Express is seeking a Senior Mainframe & Data Engineer to evolve core transaction processing and data platforms at enterprise scale, enabling real-time processing and API-driven integration across the Digital Banking & Payments ecosystem.

You will partner with product, engineering, and operations teams in an Agile environment, delivering resilient, scalable solutions and contributing to platform modernization and observability.

Responsibilities

• Enhance payment processing applications and data platforms across mainframe and distributed environments.
• Build scalable capabilities supporting money movement, clearing, settlement, reconciliation, and reporting.
• Enable platform modernization through APIs, event-driven architectures, and enterprise data integration.
• Deliver batch and real-time processing solutions for high-volume transaction workloads.
• Partner with business and product teams to understand data requirements and define scalable data architectures.
• Maintain and improve data pipelines, application frameworks, and supporting services.
• Contribute as a core member of an Agile team through story refinement, technical design, implementation, testing, and deployment.
• Improve platform performance, data quality, resiliency, and operational efficiency.
• Advance observability, automation, and service reliability practices.
• Participate in technical reviews and drive engineering best practices.
• Support production environments through troubleshooting, root-cause analysis, and continuous improvement.

Skills

Mainframe

Data Engineering

APIs

Batch processing

Real-time processing

Agile

Tools

CICS

DB2

MQ

ETL tools

Job description

American Express is seeking a Senior Mainframe & Data Engineer to evolve core transaction processing and data platforms at enterprise scale, enabling real-time processing and API-driven integration across the Digital Banking & Payments ecosystem.

You will partner with product, engineering, and operations teams in an Agile environment, delivering resilient, scalable solutions and contributing to platform modernization and observability.