Description
**Senior Database Engineer (SQL Server)**
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The first thing you need to know is that here, you won’t fall into routine. Radix develops solutions for companies across various sectors and industries. Each project has its own technologies, solutions, and deadlines — offering you the opportunity to engage with and experience diverse challenges. In addition to our presence across Brazil — with offices in Rio de Janeiro, São Paulo, and Belo Horizonte — we also have subsidiaries in the United States, reinforcing Radix’s growing position as a **global** company.
Do you want to be part of this story and turn ideas and dreams into reality?
**About the Position**
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We are seeking a Senior Database Engineer with solid experience in Microsoft SQL Server environments to work on critical projects involving legacy system modernization, performance optimization, and data architecture evolution.
The professional will be responsible for analyzing, refactoring, and optimizing database structures in high-volume, mission-critical on\-premises environments, collaborating closely with development and architecture teams to ensure application scalability, stability, and high performance.
We seek a hands\-on professional with deep SQL Server expertise and the ability to operate in complex performance and legacy environment refactoring scenarios.
**Responsibilities**
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* Design, review, and optimize SQL Server database structures
* Refactor legacy data models and structures to improve performance and scalability
* Develop, review, and optimize complex SQL queries
* Identify and resolve performance bottlenecks in critical databases
* Perform query, index, stored procedure, and execution plan tuning
* Implement best practices for data modeling, indexing, and data governance
* Support development teams in optimizing data access
* Monitor and enhance performance in high-volume environments
* Participate in architectural discussions and help define technical strategies for data platform evolution
* Ensure high availability, integrity, and reliability of database environments
**Mandatory Requirements**
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* **FLUENT ENGLISH FOR CONVERSATION**
* Solid experience with Microsoft SQL Server
* Strong experience in performance tuning and query optimization
* Experience in refactoring databases and legacy systems
* Experience with large-scale, high-volume databases
* Advanced proficiency in SQL, Stored Procedures, Views, and Functions
* Experience analyzing execution plans, indexes, and performance troubleshooting
* Knowledge of relational data modeling
* Experience in on\-premises environments
* Hands\-on profile with strong analytical capability
**Nice-to-Have**
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* Experience with SQL Server Always On / Replication / Clustering
* Experience with ETL and data integration
* Experience in legacy architecture modernization processes
* Knowledge of database observability and monitoring
**Benefits:**
* National Health Insurance (for employee and dependents, including private room)
* National Dental Insurance (for employee and dependents)
* Flexible Meal/Voucher Allowance
* Remote Work Allowance
* Birthday Day Off
* Wellhub (formerly Gympass)
* Extended Maternity Leave (6 months) and Paternity Leave (20 days)
* Childcare Assistance for children up to 3 years old (per child)
* Mental health support via Wellz
* Benefits Club with discounts from various partners
* Educational institution and language course partnerships
* Professional Development (Corporate University)
* Partnership with coworking spaces across Brazil
* Quality of Life and Well\-Being Program
* Consulting physician for Radix employee follow-up
* Incentive Plans
**Radix consistently ranks among the Best Companies to Work For because:**
* We have committed, dedicated, curious, and innovative professionals.
* Team spirit is our greatest strength. We cooperate closely and know we’re all rowing in the same direction.
* We foster a diverse environment that values equity and inclusion.
* Our working hours are flexible, and for nearly all projects, you can work from anywhere in Brazil.
* We prioritize well\-being and care for our people, offering mental health support programs, psychiatric services, and consulting physicians.
código: 8f0d
**Interested?**
**\#JoinRadix**