SQL Developer - Data & Performance Optimizer

Decskill; Porto; On-site; EUR 32,000 - 52,000; Full time

Job summary

DECSKILL is seeking a SQL Developer in Porto to design and optimize database solutions, monitor critical business processes, and support development teams. You will work with SQL Server and PostgreSQL, implement backups, and help improve data-driven decisions.

The role emphasizes ETL development, performance tuning, and collaboration with APS/Dev teams to ensure high availability and efficient data workflows within client projects.

Qualifications

• Experience in ETL development, optimization, and monitoring using SQL Procedures and Functions.
• Strong root cause analysis skills.
• Expertise in SQL performance tuning, partitioning and indexing.
• Familiarity with Master Data Services and related data management concepts.
• Experience with CI/CD and DevOps practices.

Responsibilities

• Design and implement database systems within Information Systems.
• Monitor and support critical business processes.
• Develop and optimize SQL queries, stored procedures, and triggers for data manipulation and reporting.
• Collaborate with development teams to improve business processes outcomes.
• Manage and administer SQL Server and PostgreSQL databases.
• Implement backup strategies and ensure data integrity.

Skills

ETL development

Root cause analysis

SQL performance tuning

Data modeling

Tools

Dynatrace

ELK

Zabbix

CI/CD

Job description

DECSKILL is seeking a SQL Developer in Porto to design and optimize database solutions, monitor critical business processes, and support development teams. You will work with SQL Server and PostgreSQL, implement backups, and help improve data-driven decisions.

The role emphasizes ETL development, performance tuning, and collaboration with APS/Dev teams to ensure high availability and efficient data workflows within client projects.