Senior Java Backend Developer
Posted Updated 3
views
Summary
Senior Java backend developer in Singapore who leads the design and maintenance of scalable microservices and RESTful APIs, makes architectural decisions, mentors juniors, and supports DevOps and production systems. Core stack: Java Spring Boot, PostgreSQL/MongoDB/Redis, RabbitMQ, Docker/Kubernetes, Git and CI/CD.
JOB RESPONSIBILITIES
- Lead the design, development, and maintenance of scalable backend systems, microservices, and RESTful APIs.
- Collaborate with product managers and frontend teams to deliver fit-for-purpose digital solutions aligned with business and IT strategy.
- Ensure backend systems are secure, reliable, and optimised for performance.
- Drive technical discussions, make architectural decisions, and review code to ensure adherence to best practices and standards.
- Act as a mentor to junior developers, fostering a culture of continuous improvement and knowledge sharing.
- Manage system integrations across internal and third-party platforms
- Contribute to DevOps processes and CI/CD pipelines to support rapid and safe software delivery.
- Document key design decisions, system workflows, and technical specifications.
- Support production systems, troubleshoot issues, and ensure uptime and resilience.
- Must actively participate in peer code reviews, adhering to strict code quality and security standards enforced by SonarQube (Static Analysis) and Check marx (SAST).
- Bachelor’s Degree in Computer Science, Engineering, or a related field.
- 4 years of hands-on backend development experience in enterprise or cloud-native applications.
- Proficient in Java Spring Boot.
- Solid experience with microservices architecture, RESTful APIs, and message queues (e.g. RabbitMQ).
- Expertise in database architecture and performance tuning across SQL, NoSQL, and Caching layers (e.g., PostgreSQL, MongoDB, Redis).
- Proven track record of maintaining high code quality through mandatory Test-Driven Development (TDD) or equivalent practices, with deep proficiency in JUnit, Mockito, and automated API testing via Postman.
- Comfortable working in Linux environments, with knowledge of shell scripting and deployment practices.
- Familiar with containerisation and orchestration tools such as Docker and Kubernetes.
- Experience in system integration with platforms like SAP, Salesforce, or other enterprise systems is a plus.
- Understanding of secure coding principles and API security standards (OAuth2, JWT, etc.).
- Familiarity with AI services (e.g., Azure Cognitive Services, Google AI APIs) is a plus.
- Expertise in Git-based version control and source code management is essential, including proficiency in advanced branching strategies, merge conflict resolution, and repository organisation.
- Hands-on experience with CI/CD automation platforms (e.g., Bamboo, GitHub Actions, Jenkins) and exposure to cloud environments (AWS, Azure, or GCP) and observability tools is highly advantageous.
- Strong analytical, communication, and leadership skills. Able to articulate technical concepts to both technical and non-technical stakeholders.
Skills
- AI
- API
- Api Security
- Automation
- AWS
- Azure
- Bash
- CI/CD
- Cloud
- Cloud Native
- Containerization
- DevOps
- Docker
- GCP
- Git
- GitHub
- GitHub Actions
- Java
- Jenkins
- JUnit
- JWT
- Kubernetes
- Linux
- Microservices
- Mockito
- MongoDB
- NoSQL
- OAuth
- Observability
- PostgreSQL
- Postman
- RabbitMQ
- Redis
- REST
- Salesforce
- SAP
- SAST
- Secure Coding
- SonarQube
- Spring
- SQL
- TDD
- Version Control