Remote Java Engineer – Application / Database Modernization

Description:

• Mactores is seeking a Software Engineer with proficiency in Java, Spring, and Hibernate for a migration project from Oracle to PostgreSQL.
• The role involves analyzing and remediating large enterprise Java codebases to replace legacy SQL constructs with modern SQL.
• Responsibilities include converting embedded SQL within Java services and MyBatis XML mappers, and rewriting vendor-specific functions and pagination logic.
• The engineer will collaborate with schema and database migration engineers to ensure application-layer SQL aligns with the modernized target schema.
• Refactoring Java transaction logic, error-handling, drivers, and ORM/DAO layers to support modern databases is required.
• Participation in unit, integration, and performance testing to confirm functional parity and ensure applications meet performance SLAs post-modernization is expected.
• The role includes supporting application cutover activities for production environments, such as validation and monitoring setup.
• Producing engineering documentation, including SQL remediation guides and troubleshooting guides, is part of the job.
• The engineer will work across distributed teams in the US and India and collaborate with customer SMEs for successful modernization outcomes.

Requirements:

• A Bachelor’s degree in Computer Science, Engineering, or a related field is required.
• Candidates must have 3+ years of professional Java development experience, including Spring, JDBC, and MyBatis/Hibernate.
• Experience with application modernization, database migrations, or large-scale refactoring initiatives is necessary.
• Strong SQL expertise and the ability to analyze, interpret, optimize, and rewrite complex SQL used within Java applications are required.
• A deep understanding of JDBC, ORMs, Java transaction patterns, and database-driven application flows is essential.
• Experience working on enterprise-grade, high-performance applications with complex data interactions is needed.
• Strong communication skills and the ability to work with global distributed teams in US time-zones are required.

Benefits:

• Mactores promotes a culture that values decision-making, leadership, collaboration, and curiosity.
• The recruitment process includes a structured three-stage assessment to ensure the right fit for the role.
• The company is committed to providing equal opportunities in all employment practices without discrimination.
• Mactores emphasizes a supportive work environment that encourages personal and professional growth.