Senior Java Developer

Trinity Consulting Services; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Trinity Consulting Services in Singapore seeks an experienced Java/J2EE developer to join our team. You will work on distributed platforms and microservices, shaping design patterns and ensuring performance.

We expect hands-on expertise with Spark, Flink, Kafka, Elasticsearch, HBase, HDFS and MongoDB, plus Spring frameworks, Docker/Kubernetes, and CI/CD tools. Strong problem solving and teamwork are essential.

Qualifications

• 7–9 years of hands-on Java/J2EE development.
• Strong understanding of distributed platforms and microservices.
• Experience in solution design using proven patterns and performance tuning.
• Hands-on with Spark, Flink, Kafka, Elasticsearch, HBase, HDFS, and MongoDB.
• Proficient in Spring Frameworks (IOC, Spring Boot, Spring Integration).
• Experience with Docker and Kubernetes for deployment.
• Familiar with CI/CD tools (Jenkins, GitLab, Artifactory/Nexus, Maven).
• Extensive experience in TDD/BDD with JUnit, Mockito, Cucumber.
• Solid understanding of architecture, patterns, and best practices.
• Proven track record leading design and implementation of complex features.
• Strong UML knowledge for system design and maintenance.
• Proficient in Agile and Scrum methodologies.
• Basic cash management knowledge.
• Excellent problem solving and communication skills.

Responsibilities

• Lead design and implementation of complex features and applications.
• Apply software architecture and design patterns to deliver robust solutions.
• Collaborate across teams to ensure quality with TDD/BDD and CI pipelines.
• Contribute to architecture, UML design, testing and ongoing maintenance.

Skills

Java/J2EE development

Distributed microservices

TDD/BDD

Problem solving

Communication

Agile/Scrum

Tools

Spark

Flink

Kafka

Elasticsearch

HBase

HDFS

MongoDB

Spring (IOC, Boot, Integration)

Docker

Kubernetes

Jenkins

GitLab

Artifactory/Nexus

Maven

JUnit/Mockito/Cucumber

UML

Job description

• 7-9 years of hands-on experience in Java/J2EE development.
• Deep understanding of distributed platform & microservices architecture
• Solution design using proven patterns, awareness of anti-patterns, performance tuning
• Proficiency with technologies such as Spark programming, Flink, Kafka, Elasticsearch, HBase, HDFS, and MongoDB
• Profound knowledge in Spring Frameworks encompassing IOC, Sprint Boot, SpringIntegration & more
• Hands-onexperience in software deployment and orchestration technologies, includingDocker and Kubernetes
• Proficientin utilizing build and continuous integration services such as Jenkins, GitLab,Artifactory, Nexus and Maven
• Extensiveexperience working in TDD (Test-Driven Development) and BDD (Behavior-DrivenDevelopment) environments, utilizing unit testing frameworks such as JUnit,Mockito and Cucumber
• Strongunderstanding of software architecture, design patterns, and best practices.
• Provenexperience in leading the design and implementation of complex features andapplications.
• Verygood understanding of application system design, development, testing,deployment and maintenance using UML.
• Basiccash management functional knowledge.
• Proficiencyin Agile and Scrum working methodologies.
• Excellentproblem solving and troubleshooting skills.
• Effectivecommunication and teamwork skills.