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Senior Java Backend Developer (12 months contract)

Singapore💼 Contract🗓 2026-09-18 → 2026-09-23

Core

Design, develop, and maintain scalable, high-performance backend payment systems for international credit card and e-commerce platforms.

Role type

Senior IC Java Backend Engineer (Payments)

Builds

Scalable microservices and event-driven architectures for high-volume transaction processing

Domain

Fintech / Payments / Banking

Deliverable

production ML models | product features

Required skills

Java 8+ (up to 21), Spring Boot, Microservices, Event-driven architecture, REST APIs, Solace messaging, MySQL (tuning/optimization), JUnit, Mockito, Maven, Git, Jenkins, Load testing, Troubleshooting, AWS, Docker, Terraform

Preferred skills

Experience in e-commerce, banking, or high-volume transaction environments

Technologies

Java, Spring Boot, Solace, MySQL, JUnit, Mockito, Maven, Git, Jenkins, AWS, Docker, Terraform

Responsibilities

Design and develop scalable backend systems for high-volume transaction processing; Develop secure and high-performance APIs for system integration; Implement event-driven and asynchronous processing; Optimize application, database, and service-level performance; Troubleshoot production issues and perform root cause analysis; Manage build, deployment, and release processes

Seniority

Senior, hands-on IC

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