Expert SQL Developer for Database Optimization

Apptoza Inc. • toronto, on • Posted June 27, 2026

About the Role

We are seeking a skilled SQL Developer with expertise in optimizing complex SQL queries. Your role will focus on performance tuning and database development to enhance business applications and reporting needs.
In this SQL Developer position, you will write and maintain advanced SQL queries, stored procedures, and functions. You will also analyze and improve query performance while designing efficient database structures. Collaborating closely with application and data teams, you will ensure effective data retrieval and resolve any performance issues.
Key Responsibilities:
• Develop and maintain complex SQL queries and functions
• Optimize query performance through analysis and tuning
• Improve execution plans for slow-running queries
• Design efficient database structures and indexing strategies
• Support data integrity, consistency, and security
Requirements:
• Strong expertise in SQL (Oracle / SQL Server)
• Hands-on experience with complex joins, subque...