Mayra Barrera

Led enterprise BI and reporting initiatives, designing scalable datamart architectures and Power BI solutions. Defined KPI governance standards and automated reporting workflows to improve operational efficiency.

• Led enterprise BI and reporting initiatives across multiple business areas, delivering scalable analytical solutions for executive decision-making.

• Designed and optimized scalable datamart architectures and enterprise reporting environments improving data accessibility and operational visibility.

• Developed and maintained Power BI enterprise solutions including advanced data modeling, DAX o

SQL / DB2 Database Administrator

• Managed and supported more than 450 enterprise SQL Server databases across multiple environments and versions (SQL Server 2000–2017).

• Strong experience in high-availability database architectures including clustering, Failover Cluster Instances, and Always On Availability Groups.

• Performed database performance tuning, monitoring, incident management, probl

Senior Implementation Analyst – Credit Bureau

• Implemented SOAP and REST web services for credit bureau integrations supporting financial institutions and telecommunications companies.

• Supported secure production deployments, demo environments, and enterprise web service configurations for clients including Bancolombia, Banco de Bogotá, Banco Popular, Banco Agrario, Addi, and cooperative enti

Implemented SOAP and REST web services for credit bureau integrations, supporting financial institutions and telecommunications companies. Collaborated with cross-functional teams to ensure integration reliability.

Automated reporting processes using Excel VBA, SQL Server, and Alteryx. Participated in ETL processes, KPI monitoring, and SLA compliance, developing dashboards to improve operational efficiency.

• Automated reporting processes using Excel VBA, SQL Server integrations, and Alteryx analytical solutions.

• Participated in ETL processes, SAP scripting, KPI monitoring, and SLA compliance initiatives across regional operations.

• Developed dashboards and analytical solutions improving operational efficiency, reporting accuracy, and data quality.

• Provided analytical support for HR, finance

• Managed system maintenance, operational continuity, and SLA compliance across enterprise information systems.

• Led the full lifecycle of technical requirements from analysis and validation to production deployment and post-implementation support.

• Provided backend and frontend application support including SQL database administration, Windows Server and IIS management, and site configuratio

Provided backend technical support and escalation management for enterprise clients such as BBVA, Davivienda, Colseguros, Belcorp, and Avianca. Ensured incident tracking, resolution, and compliance with service level agreements.

Provided backend technical support and escalation management for enterprise clients, ensuring incident tracking and resolution in compliance with service level agreements.

Provided remote technical support to small and medium-sized enterprise (SME) customers for fiber optic and HFC services. Performed remote configuration, troubleshooting, and diagnostics of modems and routers from vendors such as Allied Telesyn and Cisco. Supported transmission equipment and Metro Ethernet networks, including Huawei and GPON infrastructures.

Provided remote technical support to SME customers for fiber optic and HFC services, performing configuration, troubleshooting, and diagnostics of modems and routers.

Diplomado en Diseño de experiencias e interfaces de usuario UX/UI

Desarrollo de habilidades necesarias para coordinar proyectos basados en inteligencia de negocios, aplicando modelos de analítica de datos, gestión y el desarrollo de las organizaciones con énfasis en Big Data.

Programación en HTML 5 y CSS 3

Python es el versátil lenguaje de programación orientada a objetos empleado por emprendedores y gigantes tecnológicos, como Google, Facebook, Dropbox e IBM. También se recomienda Python para los desarrolladores jóvenes con ambiciones de avanzar laboralmente en las áreas de seguridad, redes e Internet de las cosas

Professional course on Git and GitHub for version control.

Aspectos básicos de estar seguro en línea.
Diferentes tipos de malware y ataques, y cómo las organizaciones se protegen contra ellos.
Explorará las opciones profesionales en ciberseguridad.

Profesional idóneo, con conocimientos científicos tecnológicos, con espíritu investigativo y formado en ambientes de aprendizaje autónomo que permite, analizar, diseñar, apropiar tecnologías, implementar, mantener y dar soporte a procesos en los cuales intervienen equipos y Sistemas de Telecomunicaciones, y paralelamente desarrollar su espíritu creativo y cultivar una actitud científica y crítica