Java/SQL Developer

Avensys is a reputed global IT professional services company headquartered in Singapore. Our service spectrum includes enterprise solution consulting, business intelligence, business process automation and managed services. Given our decade of success we have evolved to become one of the top trusted providers in Singapore and service a client base across banking and financial services, insurance, information technology, healthcare, retail, and supply chain. We're seeking an experienced Java/SQL Developer to join our team. This role requires a versatile technologist who can design, develop, and maintain full stack applications that deliver real business impact for our clients. 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 1. Migrate data and database objects to MariaDB 2. Develop, convert, and optimize stored procedures 3. Perform SQL tuning to improve query and batch performance 4. Develop and enhance Spring Boot services and REST APIs 5. Build and maintain Spring Batch jobs for data processing 6. Support data validation and reconciliation (corporate data volume approx. 250k–300k records) 7. Participate in testing, defect fixing, and cutover activities 8. Prepare technical documentation Required Skills 1. 6+ years of hands-on Java development experience 2. Strong experience with Spring Boot, Spring Batch, and REST API 3. Strong MariaDB/SQL skills, including stored procedures and SQL tuning 4. Experience in data migration or database migration projects 5. Good analytical and problem-solving skills Preferred 1. Banking or financial services domain exposure (corporate banking is a plus) 2. Experience with legacy-to-new platform migrations WHAT’S ON OFFER You will be remunerated with an excellent base salary and entitled to attractive company benefits. Additionally, you will get the opportunity to enjoy a fun and collaborative work environment, alongside a strong career progression. To submit your application, please apply online or email your UPDATED CV in Microsoft Word format to deepa@aven-sys.com. Your interest will be treated with strict confidentiality. CONSULTANT DETAILS Consultant Name: Deepa Shivakoti Reg No: R1765546 Avensys Consulting Pte LtdEA Licence 12C5759 Privacy Statement: Data collected will be used for recruitment purposes only. Personal data provided will be used strictly in accordance with the relevant data protection law and Avensys' privacy policy.