Senior Java Developer - Cash Management Platform Transformation

Trinity Consulting Services; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Trinity Consulting Services in Singapore is seeking an experienced Java Developer to build and evolve enterprise applications. You will apply domain-driven design, implement robust backend services, and shape scalable architectures using modern Java tooling.

Collaborate across teams, participate in code reviews, and mentor junior developers while adhering to secure coding, resiliency, and production-ready practices.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related technical discipline.
• Proven experience as a Java Developer with enterprise application development.
• Senior-level responsibilities such as technical decision-making, cross-team coordination, and mentoring.

Skills

Java

OOP

DDD

Design Patterns

Microservices

Spring Boot

CI/CD

Git

Docker

Kubernetes

OpenShift

Databases

Education

Bachelor's degree in Computer Science or Software Engineering

Job description

Education and experience:

• Bachelor's degree or higher in Computer Science, Software Engineering, or a related technical discipline.
• Proven experience as a Java Developer, including significant hands-on experience in enterprise application development.
• Demonstrated experience in senior-level responsibilities such as technical decision-making, cross-team coordination, and mentoring.

Core required skills and experience:

• Solid experience as a Java Developer with strong object-oriented programming fundamentals.
• Experience and comfort with Domain Driven Design, including bounded contexts, aggregates, entities, value objects and domain models.
• Proficiency in Java Design Patterns (for example: Singleton, Factory, Builder, Observer, Strategy).
• Experience in software architecture design (microservices, layered, event-driven architectures).
• Hands-on experience with the latest JDK and Spring Boot framework.
• Familiarity with Agile and Scrum methodologies and sprint-based delivery.
• Experience with containerization and orchestration tools: Docker, Kubernetes, and OpenShift.
• Working knowledge of databases and storage: MongoDB, PostgreSQL, and AWS S3.
• Experience with GitLab CI/CD pipelines and ArgoCD for GitOps-based deployments.
• Experience writing and maintaining BDD (Behavior-Driven Development) tests (for example: Cucumber, Gherkin).

Engineering and delivery expectations:

• Strong ability to translate functional requirements into scalable, maintainable technical solutions.
• Solid understanding of secure coding principles, resiliency patterns, and production-readiness practices.
• Experience performing code reviews, driving coding standards, and improving overall software quality.
• Ability to diagnose and resolve complex issues across development, integration, and production environments.
• Practical experience balancing delivery speed, technical debt, and long-term maintainability.

Domain knowledge (advantageous):

• Experience or exposure to the payments, finance, or banking domain is a strong plus.