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# Sql Developer

- **Company:** Trinetix
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Databases, Database Design, Microsoft SQL Server, Online Transaction Processing, Performance Tuning, Query Optimization, SQL Stored Procedures, SQL Databases, Database Optimization
- **Published:** November 5, 2026
- **Apply:** https://www.buscojobs.com.es/sql-developer-en-madrid-ID-378686960

## About the Role

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

## Description

We are looking for an experiencedSQL Developerwith 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.Requirements3+ years of hands-on experience with MS SQL Server as a SQL DeveloperDemonstrated practical experience in SQL query optimizationStrong skills in analyzing execution plans, designing indexing strategies, and tuning performanceStrong ability to write clean code in accordance with the project's technical requirementsSolid knowledge of OLTP database design principles and best practicesAbility to present real examples of performance improvements or schema redesigns you have implementedCore ResponsibilitiesCreate database objects/writing stored procedureAnalyze and optimize slow SQL queries in MS SQL Server (joins, subqueries etc.)Work with execution plans, indexes, statistics, and partitioning to enhance performanceDemonstrates the ability to clearly understand and effectively analyze business requirementsCollaborate with developers to ensure efficient SQL and schema use across the platformPropose structural, architectural, and performance-oriented improvementsWhat We OfferContinuous learning and career growth opportunitiesProfessional training and English/Spanish language classesComprehensive medical insuranceMental health supportSpecialized benefits program with compensation for fitness activities, hobbies, pet care, and moreFlexible working hoursInclusive and supportive cultureAbout UsEstablished in ****, 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 global brands, delivering innovative digital solutions across Fintech, Professional Services, Logistics, Healthcare, and Agriculture.Our operations are driven by a strong business vision, a people-first culture, and a commitment to responsible growth.We actively give back to the community through various CSR activities and adhere to international principles for sustainable development and business ethics.To learn more about how we collect, process, and store your personal data, please review our Privacy Notice: #J-*****-Ljbffr