Senior Developer (ARDA / PostgreSQL)

We are looking for a Senior Developer (ARDA / PostgreSQL) to join a large-scale enterprise modernization project. The ideal candidate will have strong experience with ARDA, PostgreSQL, and enterprise database environments, with a proven ability to support application modernization initiatives, database segregation, and high-performance production systems.

Responsibilities

• Refactor the ARDA application code to integrate with a dedicated PSI PostgreSQL database instance.
• Design and implement the segregation of PSI from the current shared database environment into a dedicated architecture.
• Review application dependencies to ensure secure and efficient integration.
• Design, develop, and implement solutions focused on application modernization.
• Participate in database migration projects while ensuring business continuity.
• Optimize database performance through performance tuning and best practices.
• Support enterprise-scale production environments and troubleshoot critical issues.
• Collaborate with cross-functional teams to design scalable and reliable technical solutions.

Requirements

• 5+ years of experience as a Software Developer, Backend Developer, or similar role.
• Hands-on experience with PSI Database Segregation or dedicated PSI database implementations.
• Strong experience with PostgreSQL and SQL.
• Experience working with ARDA.
• Experience supporting enterprise-scale production environments.
• Experience with Application Modernization and System Design.
• Experience with database migrations.
• Strong knowledge of database performance tuning.
• Experience supporting business-critical production applications.
• Advanced English (required).
• Excellent problem-solving, communication, and collaboration skills.

Nice to Have

• Experience with AWS Aurora PostgreSQL.
• Previous experience supporting Santander applications.
• Experience with ARDA or PSI-related systems.

Conditions

• Payment: 4.300 USD.
• Location: 100% On-site in New York, USA.
• Schedule: Full-time.
• Project Duration: Long-term.
• Modality: contractor (freelance).