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Softtek
Posted 11h ago

Software Engineer Web Java Sr

Softtek
softtek.comView all open roles
Mexico or Colombia
HybridFull Time
Responsibilities
  • leading migrations
  • updating dependencies
  • optimizing SQL
Requirements
  • Requires 7+ years of Java development
  • 5+ years with Hibernate/JPA
  • Oracle-to-PostgreSQL migration experience
  • Spring 4.x
  • SQL optimization
  • LOB migration
  • PL/SQL conversion, and Gradle builds
Technical tools mentioned
JavaJava 8Hibernate/JPAHibernate 4.xOraclePostgreSQLSpring Framework 4.xGradleGrails 5.xGORMGroovyQuartz SchedulerHikariCPFlywayLiquibaseAzureJDBCPL/SQLPL/pgSQL

Job description

Requirements
Must have
  • 7+ years of experience in Java development, including hands-on experience with Java 8 in production environments.
  • 5+ years of experience with Hibernate/JPA, including hands-on work with Hibernate 4.x in legacy applications.
  • Proven experience delivering at least one Oracle to PostgreSQL database migration (or equivalent) within a Java-based application environment.
  • Strong expertise in Oracle and PostgreSQL SQL, with the ability to translate and optimize Oracle-specific features such as NVL, SYSDATE, ROWNUM, DECODE, DUAL, MERGE, CONNECT BY, and sequences.
  • Experience with Spring Framework 4.x using XML-based configuration.
  • Strong knowledge of LOB migrations, including BLOB/CLOB to PostgreSQL bytea/text conversions.
  • Experience with Gradle multi-module builds.
  • Hands-on experience converting PL/SQL code to PL/pgSQL.
Nice to have
  • Experience with Grails 5.x, GORM, and Groovy.
  • Experience with Quartz Scheduler.
  • Experience with HikariCP connection pooling.
  • Knowledge of Flyway and/or Liquibase for database versioning and migrations.
Responsibilities
  • Lead and own all application-side changes required for the migration of a Java/Grails application suite from Oracle to PostgreSQL on Azure.
  • Perform database migration activities across 8 Java application modules while maintaining the existing application architecture and framework versions.
  • Update JDBC dependencies and Hibernate dialect configurations to support PostgreSQL.
  • Validate and remediate Hibernate ORM mappings for PostgreSQL compatibility.
  • Analyze and resolve LOB handling issues during the migration process.
  • Review, translate, and optimize Oracle-specific SQL across more than 100 DAO components.
  • Convert and validate 51 maintenance scripts from Oracle to PostgreSQL standards.
  • Collaborate with technical teams to ensure a smooth migration, performance validation, and successful deployment.
Languages
  • English: Developing Advanced
Locations
  • Hybrid – Mexico

About Softtek

Provider of global software engineering and IT services.

Year founded
1982
Employees
15000
Industries
Information Technology ServicesBusiness Consulting
Activities
Software developmentIT consultingIT infrastructure managementBusiness process outsourcingDigital transformation services
Organization type
Private
Subsidiaries
Vector ITC
Headquarters
MX

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