Senior Java Developer - Banking Products

re-zoo-me; Singapore; Hybrid; SGD 90,000 - 150,000; Full time

Job summary

re-zoo-me is seeking a skilled Java developer to design and build enterprise banking applications in Singapore. You will develop scalable microservices, REST APIs, batch processing, and integrate with external systems using Camel, IBM MQ and Kafka.

Joining a fast-paced team, you will contribute to solution design, implement resilience patterns with Resilience4j, and drive quality through unit tests, JUnit, SonarQube and performance testing with JMeter. Collaboration with stakeholders is key.

Qualifications

• Enterprise banking app development with Java and Spring.
• REST APIs and microservices development experience.
• Message-driven architectures with Kafka/IBM MQ/Camel.
• JUnit, API and integration testing; SonarQube/JMeter usage.
• Resilience patterns and fault tolerance knowledge.
• CI/CD, Git; scripting basics; Temenos TAP knowledge is a plus.

Responsibilities

• Design and develop enterprise-grade banking apps using Java and Spring.
• Build scalable microservices and REST APIs.
• Develop batch processing with Spring Batch.
• Implement resilient services using Resilience4j.
• Integrate with external/internal systems via Camel, IBM MQ and Kafka.
• Develop secure, performant, maintainable code following banking standards.
• Participate in solution design and architectural discussions.
• Create automated tests using JUnit.
• Perform code quality checks with SonarQube and address debt.
• Conduct performance/load testing with JMeter.
• Support production deployments and troubleshoot critical apps.
• Collaborate with Product Owners, Architects, QA and Client teams.
• Participate in Agile practices and release management.

Skills

Java 8/11/17+

Spring Framework

Spring Boot

Spring Batch

REST APIs

Microservices

Kafka

IBM MQ

Apache Camel

Messaging Architecture

Resilience4j

Circuit Breaker

Retry Frameworks

Fault Tolerance

JUnit

SonarQube

JMeter

API Testing

Integration Testing

Orchestration Concepts

Git

CI/CD

Shell Scripting

Control-M

Temenos TAP

Job description

Key Responsibilities

• Design and develop enterprise‑grade banking applications using Java and Spring technologies.
• Build scalable microservices and REST APIs supporting banking product functionalities.
• Develop batch processing solutions using Spring Batch for financial transaction and reconciliation workloads.
• Implement resilient services using Resilience4j patterns.
• Integrate banking applications with external and internal systems using Apache Camel, IBM MQ, and Kafka.
• Develop secure, performant, and maintainable code following banking industry standards.
• Participate in solution design and architectural discussions.
• Create automated unit and integration tests using JUnit.
• Perform code quality validation through SonarQube and address technical debt.
• Conduct performance and load testing using JMeter.
• Support production deployments and troubleshoot critical banking applications.
• Collaborate with Product Owners, Business Analysts, Architects, QA teams, and Client Implementation teams.
• Participate in Agile development practices and release management activities.

Required Technical Skills

Core Development

• Java 8/11/17+
• Spring Framework
• Spring Boot
• Spring Batch
• REST APIs
• Microservices Development

Integration & Messaging

• Apache Kafka
• IBM MQ
• Apache Camel
• Message-Based Architecture

Reliability Engineering

• Resilience4j
• Circuit Breaker
• Retry Frameworks
• Fault Tolerance Design

Testing & Quality

• JUnit
• SonarQube
• JMeter
• API Testing
• Integration Testing

Additional Skills

• Orchestration Concepts
• Git
• CI/CD Pipelines
• Basic Shell Scripting
• Basic Control-M

Banking Domain Experience

• Added advantage if Temenos TAP product knowledge

Key Competencies

• Strong analytical and problem-solving skills.
• Ability to work in fast-paced product development environments.
• Strong communication and stakeholder management skills.
• Experience mentoring junior and mid-level developers.
Commitment to software quality, reliability, and performance.