Senior Java Developer - Payments Microservices (Remote)

SSi People; Cleveland (OH); Remote; USD 120,000 - 160,000; Full time

Job summary

SSi People in the United States is seeking a Senior Java Developer to support a payment-focused technology team by designing and maintaining microservices that connect multiple backend systems. This role focuses on building reliable APIs and scalable services for end-to-end user experiences.

You will collaborate with frontend teams, optimize performance, and ensure security and resiliency using Spring Boot, Kafka, Docker, and Kubernetes. Prior payments domain experience is a plus.

Qualifications

• 6+ years of backend development experience.
• Strong experience building and integrating microservices with Java/Spring Boot.
• Experience designing APIs, orchestration, and service-to-service communication.
• Solid understanding of event-driven architecture with Kafka.
• Experience with containerization and deployment using Docker and Kubernetes.
• Knowledge of secure API design (OAuth/JWT) and enterprise authentication patterns.

Responsibilities

• Design, build, and maintain microservices for payment platforms.
• Develop API layers and service-to-service interactions.
• Collaborate with frontend and business partners for end-to-end workflows.
• Troubleshoot production issues and improve resiliency and performance.

Skills

Java

Spring Boot

Microservices

API design

Kafka

Docker

Kubernetes

OAuth/JWT

CI/CD

Angular

Job description

SSi People in the United States is seeking a Senior Java Developer to support a payment-focused technology team by designing and maintaining microservices that connect multiple backend systems. This role focuses on building reliable APIs and scalable services for end-to-end user experiences.

You will collaborate with frontend teams, optimize performance, and ensure security and resiliency using Spring Boot, Kafka, Docker, and Kubernetes. Prior payments domain experience is a plus.