Open to opportunities

Martin Ríos

@martinros

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Senior database administrator and data engineer specializing in SQL performance and BI.

Argentina

Message

What I'm looking for

I’m looking for a remote Database Administrator (DBA) role where I can optimize SQL Server/Azure, design robust ETL and data models, integrate REST APIs, and deliver BI dashboards—working in Scrum teams with strong delivery ownership.

I’m a data professional with 10+ years of Database Administration and advanced SQL development, focused on performance tuning, query optimization, indexing, partitioning, and backup/recovery on Microsoft Azure. I’ve delivered national-scale data pipelines, REST API integrations, and BI dashboards for government agencies, UNICEF, and the Inter-American Development Bank (IDB/BID), including a 30% ETL performance improvement for reporting.

I design scalable relational data models and ETL workflows using SSIS and T-SQL, and I build analytics experiences with Power BI, Tableau, and QlikView. As a Scrum-based project coordinator, I lead technical teams of up to 20 developers, coordinating releases for many clients while maintaining reliability and operational excellence.

Experience

Work history, roles, and key accomplishments

Current

Database Admin & Project Coordinator

Current

LikeChuck | Horus

May 2019 - Present (7 years 2 months)

Designed scalable relational data models for web/mobile applications with 2,000+ active users and led development of the Salta Mining Information System, including multi-source ETL, REST API design, and geospatial visualization. Tuned SQL Server on Azure for ETL performance (30% improvement) and coordinated Scrum planning/backlog for teams supporting 15+ simultaneous clients.

Data Modeling SQL Server Azure SQL T SQL Query Optimization Execution Plan Analysis SSIS ETL Data Pipelines RESTful API Design Scrum Sprint Planning Backlog Management

Database Admin & Project Coordinator

Agencia de Información de Políticas Públicas

Feb 2019 - Dec 2021 (2 years 10 months)

Designed data models and managed Azure SQL Server for provincial and national data collection systems with offline mobile sync from field devices. Built T-SQL ETL and executive dashboards (QlikView, Tableau, Power BI) for public policy indicator reporting and coordinated Scrum delivery for 20+ clients.

Azure SQL Server Database Administration Data Modeling T SQL ETL Data Warehouse Qlikview Tableau Power BI Dashboards Scrum Backlog Management Sprint Planning

Geospatial Data & ETL Consultant

Inter-American Development Bank (IDB / BID)

Sep 2020 - Mar 2021 (6 months)

Designed a geospatial data model using WKT geometries for a territorial survey system and built national-scale T-SQL ETL processes (~100,000 records/day). Implemented an Azure SQL maintenance strategy with zero availability incidents over 6 months and delivered Power BI dashboards and REST APIs for operational data exposure.

Geospatial Data Modeling (WKT)T SQL ETL SQL Server Azure SQL Full Differential Backups Power BI Incremental Refresh REST APIs Token Based Authentication API Versioning

Geospatial Web Viewer Consultant

Inter-American Development Bank (IDB / BID)

May 2020 - Sep 2020 (4 months)

Designed and developed a geospatial web viewer supporting WKT geometries (points, lines, polygons) and rendering 120,000+ records across multiple neighborhood layers. Implemented tile-based progressive loading and dynamic filters to maintain smooth performance for large geographic data volumes.

WKT Geometries Tile Based Loading

Web Developer - RUN System

Unicef

Jul 2019 - Dec 2019 (5 months)

Installed and configured testing and production environments for the RUN system (National Child & Adolescent Registry) across servers in 10 provinces. Developed new features and optimized data-entry workflows, reducing patient registration time by 20%.

Web Development Workflow Optimization

Database Admin & Project Coordinator

Ministerio Primera Infancia – Government of Salta

Feb 2015 - Feb 2019 (4 years)

Designed and implemented data models for social and health survey systems at provincial and national level and administered Azure SQL Server (maintenance, backups, security, and monitoring). Developed T-SQL ETL processes and BI dashboards for periodic reporting and coordinated a Scrum team for sprint planning and production deployments.

Azure SQL Server Database Administration Data Modeling Backup Performance Monitoring T SQL ETL BI dashboards Scrum Sprint Planning

Business Intelligence Developer

Municipality of Salta

Feb 2012 - Feb 2015 (3 years)

Gathered requirements and delivered 20+ executive dashboards in Tableau and QlikView for government agencies and the IDB. Designed and built OLAP cubes (star and snowflake schemas) and produced dimensional modeling documentation for BI projects.

Tableau Qlikview Dashboards OLAP Dimensional Models Star Schemas KPI Reporting

Freelance Web Developer

Private Clients – Financial Sector (Mexico)

Mar 2008 - Sep 2014 (6 years 6 months)

Developed a web-based credit portfolio management system with origination, tracking, and delinquency modules used by 20+ financial companies in Mexico. Implemented SOAP/REST web services for centralized data consumption across multi-client applications.

Web Services REST APIs Web Services Integration