We are looking for an experienced SQL Developer with deep, practical expertise in MS SQL Server, with a focus on query optimization, performance tuning, and the design of efficient database schemas. A key part of this role is reviewing, analyzing, and improving existing SQL and schema structures on the OLTP systems.
Requirements

3+ years of hands-on experience with MS SQL Server as a SQL Developer
Demonstrated practical experience in SQL query optimization
Strong skills in analyzing execution plans, designing indexing strategies, and tuning performance
Strong ability to write clean code in accordance with the project's technical requirements
Solid knowledge of OLTP database design principles and best practices
Ability to present real examples of performance improvements or schema redesigns you have implemented

Core Responsibilities

Create database objects/writing stored procedure
Analyze and optimize slow SQL queries in MS SQL Server (joins, subqueries etc.)Work with execution plans, indexes, statistics, and partitioning to enhance performance




Demonstrates the ability to clearly understand and effectively analyze business requirements
Collaborate with developers to ensure efficient SQL and schema use across the platform
Propose structural, architectural, and performance-oriented improvements

What We Offer

Continuous learning and career growth opportunities
Professional training and English/Spanish language classes
Comprehensive medical insurance
Mental health support
Specialized benefits program with compensation for fitness activities, hobbies, pet care, and more
Flexible working hours
Inclusive and supportive culture

About Us
Established in 2011, Trinetix is a dynamic tech service provider supporting enterprise clients around the world. Headquartered in Nashville, Tennessee, we have a global team of over 1,000 professionals and delivery centers across Europe, the United States, and Argentina. We partner with leading integral brands, delivering innovative digit

📌 SQL Developer (Madrid)
🏢 Trinetix
📍 Madrid