Java Engineer – Application / Database Modernization (Freelancer)
Mactores(27 days ago)
About this role
A Software Engineer at Mactores will work on a migration project modernizing large-scale Java web applications as they move from Oracle to PostgreSQL. The role focuses on updating and optimizing SQL within Java services and ensuring alignment with modern database schemas. It involves close collaboration with database migration engineers and global teams to maintain application performance and behavior. The engineer also contributes to testing, production cutover support, and engineering documentation for customer teams.
Required Skills
- Java
- Spring
- Hibernate
- JDBC
- MyBatis
- SQL Optimization
- Code Refactoring
- Application Modernization
- Database Migration
- Transaction Management
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Qualifications
- Bachelor’s Degree in Computer Science
- Bachelor’s Degree in Engineering
About Mactores
mactores.comMactores is a data analytics solutions and services firm that helps businesses accelerate value through automation. They deliver end-to-end analytics capabilities—data strategy, engineering, business intelligence, and automated workflows—to turn raw data into actionable insights. Mactores combines technical implementation with ongoing managed services to scale analytics across the enterprise and shorten time-to-value. They partner with organizations to modernize data platforms and operationalize analytics using modern cloud and automation technologies.