049 - Java / SQL Developer (Data Migration)
Summary
Java/SQL developer supporting a data migration project for a corporate banking client: migrating databases to MariaDB, converting and tuning stored procedures, and building Spring Boot services, REST APIs, and Spring Batch jobs. Based on-site at Changi Business Park.
Salary: $4,500 – $5,350 per month
Job Role: Java / SQL Developer (Data Migration)
Work Location: Changi Business Park
Role Overview
Support a data migration project for a corporate banking client, covering database migration to MariaDB, stored procedure conversion, SQL performance tuning, and supporting Java application development.
Key Responsibilities
Migrate data and database objects to MariaDB
Develop, convert, and optimize stored procedures
Perform SQL tuning to improve query and batch performance
Develop and enhance Spring Boot services and REST APIs
Build and maintain Spring Batch jobs for data processing
Support data validation and reconciliation (corporate data volume approx. 250k–300k records)
Participate in testing, defect fixing, and cutover activities
Prepare technical documentation
Required Skills
6+ years of hands-on Java development experience
Strong experience with Spring Boot, Spring Batch, and REST API
Strong MariaDB/SQL skills, including stored procedures and SQL tuning
Experience in data migration or database migration projects
Good analytical and problem-solving skills
Preferred (added advantage)
Banking or financial services domain exposure (corporate banking is a plus)
Experience with legacy-to-new platform migrations
Immediate availability preferred