Senior Backend Java Developer

CDG Zig; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

A tech firm in Singapore is seeking a Senior Backend Java Developer to design and maintain scalable backend services. The ideal candidate will possess strong Java and Spring Boot skills, and experience with microservices and CI/CD practices. Responsibilities include building robust APIs and collaborating within Agile teams. Opportunities to work with Docker, Kafka, and relational databases are pivotal in this role.

Qualifications

• 3+ years of professional software development experience.
• Experience with backend development in Java and Spring Boot.
• Familiar with containerization and CI/CD tools.

Responsibilities

• Design and maintain scalable backend services.
• Write clean, efficient, and tested code.
• Collaborate with product managers and engineers in an Agile environment.
• Troubleshoot production issues and improve deployment processes.

Skills

Java (JDK 17+)

Spring Boot

Microservices architecture

RESTful APIs

Message queues (Kafka)

Docker

CI/CD principles

Relational databases (PostgreSQL, MySQL)

Problem-solving skills

Excellent communication

Education

Bachelor's degree in Computer Science or related field

Tools

Gradle

Jenkins

GitHub Actions

Job description

About the Role

We are looking for a highly skilled and motivated Senior Backend Java Developer to join our team, focusing on designing, developing, and maintaining the server-side logic for our applications. The ideal candidate will have a solid foundation in Java, Spring Boot, and modern development practices. You will be responsible for building robust APIs, managing data persistence, and ensuring our services are reliable and performant.

Job Responsibilities

• Design, build, and maintain scalable backend services and APIs using Java 17/Spring Boot, integrating with technologies like Kafka for messaging and relational databases (e.g., PostgreSQL, MySQL).
• Write clean, efficient, and well-tested code, ensuring high quality through comprehensive unit/integration tests and active participation in peer code reviews.
• Collaborate closely with product managers, frontend developers, and other engineers within an Agile/Scrum framework to define, design, and ship new features and system enhancements.
• Troubleshoot and resolve production issues to ensure high availability and performance, while also improving the deployment process through application containerization (Docker) and CI/CD pipeline enhancements.
• Any ad hoc duties as assigned.

Job Requirements

• Bachelor's degree in computer science, Engineering, a related field, or equivalent practical experience.
• A minimum of 3 years of professional software development experience is preferred.
• Solid hands-on experience in backend development with Java (JDK 17+) and the Spring Boot framework.
• Strong understanding of microservices architecture and designing RESTful APIs.
• Proficiency with build automation tools, specifically Gradle.
• Demonstrable experience with message queues, particularly Kafka.
• Experience with relational databases (e.g., PostgreSQL, MySQL) and ORM frameworks (e.g., Hibernate, JPA) is preferred.
• Strong understanding of containerization concepts and hands‑on experience with Docker.
• Familiarity with CI/CD principles and tools (e.g., Jenkins, ArgoCD, GitHub Actions).
• Experience working in an Agile/Scrum development environment.
• Excellent problem‑solving skills and strong communication abilities.
• Experience in system modernization, such as migrating legacy applications (e.g., JBoss) to modern microservices architectures based on Spring Boot and RESTful principles.
• Experience with Python for backend development or system maintenance will be advantage.
• Experience with frontend frameworks and development, such as Vue.js or React is a plus.