Lead Java Engineer - Payments, AWS & Kafka

JP Morgan Chase; Dublin; On-site; EUR 120,000 - 180,000; Full time

Job summary

JPMorganChase in Ireland is seeking a Lead Software Engineer for the CIB / Payments Technology group. You will design, build, and support reliable, scalable payment applications using Java, reactive programming, and cloud-native AWS architectures.

The role emphasizes event-driven services with Kafka and collaboration across product, architecture, operations, risk, and other engineering teams to deliver payment capabilities.

Qualifications

• Proficient in Java with strong reactive programming experience.
• Experience building distributed, event-driven apps with Kafka.
• Experience deploying and operating apps on AWS.
• Strong understanding of APIs, microservices, distributed systems and databases.
• Experience with automated testing, version control, and CI/CD practices.
• Clear communication and collaboration across teams.

Responsibilities

• Design, develop, test, and maintain payment applications and services using Java and reactive programming.
• Build event-driven services and streaming workflows with Kafka.
• Develop and operate cloud-native apps on AWS.
• Ensure secure, resilient payment processing across transaction lifecycles.
• Create and maintain RESTful APIs and integrations.
• Apply CI/CD, automation, observability, and performance tuning.

Skills

Java

Reactive programming

Distributed systems

APIs & microservices

CI/CD

Communication

Tools

Kafka

AWS

Spring WebFlux

Project Reactor

Job description

JPMorganChase in Ireland is seeking a Lead Software Engineer for the CIB / Payments Technology group. You will design, build, and support reliable, scalable payment applications using Java, reactive programming, and cloud-native AWS architectures.

The role emphasizes event-driven services with Kafka and collaboration across product, architecture, operations, risk, and other engineering teams to deliver payment capabilities.