Java / SQL Developer (Data Migration)

IoTalents Pte. Ltd.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

IoTalents Pte. Ltd. in Singapore is seeking a Java / SQL Developer to support a data migration project for a corporate banking client. You will migrate databases to MariaDB, convert stored procedures, tune SQL performance, and build Java applications.

Key tasks include developing Spring Boot services and REST APIs, building Spring Batch jobs, validating data, and producing technical documentation. Immediate availability is preferred.

Qualifications

• 6+ years of hands-on Java development experience.
• Strong Java, Spring Boot, Spring Batch and REST API skills.
• Proficiency in MariaDB / SQL, including stored procedures and tuning.
• Experience with data or database migration projects.
• Excellent analytical and problem-solving abilities.

Responsibilities

• Migrate data and database objects to MariaDB.
• Develop, convert, and optimise stored procedures.
• Tune SQL for improved query and batch performance.
• Develop Spring Boot services and REST APIs.
• Build and maintain Spring Batch jobs for data processing.
• Support data validation and reconciliation for high-volume data.
• Participate in testing, defect resolution, and cutover activities.
• Prepare and maintain technical documentation.

Skills

Java

Spring Boot

Spring Batch

REST APIs

MariaDB / SQL

Job description

We are looking for a Java / SQL Developer to support a data migration project for a corporate banking client. The role will focus on migrating databases to MariaDB, converting stored procedures, tuning SQL performance, and developing Java applications.

Key Responsibilities

• Perform data and database object migration to MariaDB.
• Develop, convert, and optimise 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 for high-volume corporate data.
• Participate in testing, defect resolution, and cutover activities.
• Prepare and maintain technical documentation.

Requirements

• 6+ years of hands-on Java development experience.
• Strong experience with Java, Spring Boot, Spring Batch and REST APIs.
• Strong MariaDB / SQL skills, including stored procedures and SQL performance tuning.
• Experience in data migration or database migration projects.
• Strong analytical and problem-solving skills.

Preferred

• Banking or financial services experience; corporate banking exposure is an advantage.
• Experience with legacy-to-new platform migration projects.
• Immediate availability is preferred.