About

A bit more about me

Database Administrator & Data Analyst

PERSON WITH HEARING IMPAIRMENT, I RECOMMEND TO CONTACT ME VIA EMAIL, WHATSAPP OR GOOGLE MEET

  • Website: www.gioviz88.github.io
  • Age: 35
  • Degree: Systems Engineer
  • Email:
  • Freelance: Available

Experienced DBA/Data Analyst with 8+ years of experience in optimizing database performance, ensuring data integrity and extracting actionable insights from diverse datasets. Proficient in SQL, Python, data visualization and data integration from various sources, including AWS RDS and Azure SQL databases, third-party APIs, and on-premises data warehouses. Committed to bridging the gap between data infrastructure and data-driven decision-making to drive business success.

Clients

Projects

Hours Of Support

Courses & Certiifications

Skills

SQL 90%
Python 80%
DAX 75%
MS Power BI / Tableau 80%
Database Administration 90%
Cloud (AWS / MS Azure / GCP) 55%

Interests

Data Analytics

Database Administration

ETL Processing

Linux/Windows Administration

Cloud

Python

CSV / MS Excel

REST Api

Microsoft

Google

Amazon Web Services

Consulting

Some Clients and Companies I have worked with

Telefónica Ingeniería de Seguridad Ecuador.

Inter Venezuela

Adriana Hoyos Corporación Ecuador

Idatha Colombia / Pyxis Uruguay

Apis Consultores C.A. Venezuela

Other confidential clients from Venezuela, Argentina, Chile, Colombia, Costa Rica, Ecuador, Panama, Spain, Brazil, Mexico, United States.

Resume

My Resume

Sumary

Giovanny Vizcaya

Innovative and Experienced Database Administrator & Data Analyst with 8+ years of experience in database management and data analytics. Proficient in SQL, Python, data visualization with MS Power BI and Tableau, data integration from various sources, including AWS RDS and Azure SQL databases, third-party APIs, and on-premises data warehouses and databases such as PostgreSQL, Oracle database and MS SQL Server. Committed to bridging the gap between data infrastructure and data-driven decision-making to drive business success.

Education

Bachelor of Systems Enginnering (BE)

2007 - 2012

Universidad Nacional Experimental Politécnica de las Fuerzas Armadas, Caracas - Barquisimeto, Venezuela

Database Management Specialist

Professional Experience

Data Analyst (Volunteer Hybrid)

2022 - 2023

La Bodeguita - Barquisimeto, Venezuela.

  • Just a work used to help a friend to organize his store inventory and increase sales revenues.
  • Collected data from existing products in the store and registered in MS Excel.
  • Created dashboard in Power Bi to analyze the current distribution of the liquor store's products.
  • Reorganized products in stored based in product quantities, it means, more product, more sales.
  • Increased 5% in store sales revenues after reorganizing products in store.

Data Analyst / Data Engineer (Remote)

2022 - 2023

Pyxis Uriguay / Idatha Colombia

  • Conducted the design and implementation of Azure Data Factory (ADF) pipelines for data ingestion, transformation, and loading. Successfully orchestrated complex ETL workflows to move and process data from on-premises sources to Azure Data Lake Storage and Azure SQL Data Warehouse.
  • Extracted and analyzed human resources and sales data from PostgreSQL database source, then exported to MS Excel for data analytics in MS Power BI.
  • Designed data visualization dashboards with MS Power BI in collaboration with sales and human resources departments.

Python Developer / Data Analyst (Hybrid)

2022 - 2023

Adriana Hoyos Corporación - Quito, Ecuador

  • Integrated data from PostgreSQL databases sources, using REST APIs developed with Python. Also wrote custom Python scripts and SQL queries for data extraction, transformation and load into other database sources.
  • Developed interactive and insightful dashboards using Power BI and Tableau, enabling business stakeholders to visualize data trends, make informed decisions, and track KPIs. Reduced reporting time by 40% by automating routine reporting processes.
  • Utilized Python for data extraction, transformation, and analysis. Implemented statistical models to uncover actionable insights from complex datasets, resulting in a 20% increase in sales revenue.

Python Developer / Data Analyst (Remote)

2022-2022

ConsultIT - Costa Rica

  • Collaborated with Odoo developers to customize the Stock Module to meet specific client requirements. Automated routine tasks and notifications for stock replenishment and order processing.
  • Conducted data cleanup activities to eliminate duplicate records and inconsistencies in the Odoo Stock Module. Implemented data validation checks to maintain data accuracy.
  • Extracted, transformed, and loaded (ETL) data from clients' existing systems into the Odoo Stock Module.
  • Implemented seamless integration with other Odoo modules to ensure data consistency across the entire ERP system.

Database Administrator (Remote)

2021 - 2022

Confidential Client from Spain

  • Conducted database administration, providing timely support and maintenance for clients located globally.
  • Led data migration projects, assisting clients in migrating data from legacy database systems to PostgreSQL.
  • Ensured data consistency and minimized downtime during migration processes.
  • Successfully planned and executed PostgreSQL version upgrades for clients, ensuring data compatibility and minimal service disruption. Also, automated routine maintenance tasks, including vacuuming and analyzing, to optimize database performance and reduce manual intervention.

Special Services Engineer (On-Site)

2018 - 2020

Telefónica Ingeniería de Seguridad – Quito, Ecuador

  • Managed Windows Server, Linux (Red Hat, CentOS, Ubuntu), and Unix-based server environments, implementing best practices for system administration.
  • Created and maintained detailed documentation for server configurations, network topologies, cybersecurity guides and disaster recovery procedures, facilitating knowledge transfer and compliance.
  • Successfully planned and executed database upgrades and migrations, ensuring minimal downtime and data consistency during the transition to newer Oracle versions.
  • Collaborated with development teams to ensure the availability and performance of applications and database queries.

Database Engineer (On-Site)

2016 - 2018

Inter - Barquisimeto - Venezuela

  • Managed and maintained multiple Oracle database instances, such as Oracle 11g and Oracle 12c, for clients across diverse industries, ensuring optimal performance, reliability, and data integrity.
  • Collaborated closely with system administrators, network engineers, application developers, and business analysts to ensure seamless integration of Oracle databases with the overall IT ecosystem.
  • Utilized Oracle Enterprise Manager (OEM) monitoring tools to proactively monitor database performance, identify anomalies, and take preventive actions to ensure uninterrupted operations.
  • Developed and maintained automated database administration scripts and jobs using PL/SQL and shell scripting, streamlining routine tasks, and reducing manual intervention.

Systems Analyst / Python Developer / Project Leader (On-Site)

2014 - 2015

Apis Consultores C.A. - Barquisimeto - Venezuela

  • Successfully led and managed Odoo ERP recruitment module implementation project for client. Oversaw project lifecycle and post-implementation support.
  • Administered PostgreSQL databases supporting Odoo implementations. Managed database installation, configuration, optimization, and maintenance to ensure high performance and data integrity.
  • Conducted training sessions for clients' teams to enable them to effectively use and manage their Odoo systems. Facilitated knowledge transfer to ensure clients' self-sufficiency post-implementation.

Services

My Services

Database Administration (DBA) Services

  • Database Design, Maintenance, Implementations, Backups and Recoveries
  • Data Security, Database Upgrades and Migrations
  • Performance Tuning, Troubleshooting

Data Analytics Services

  • Data Analysis, Data Cleaning and Transformations, Data Quality Assurance
  • Data Strategy, Data Quality Assurance, Data Ethics and Compliance
  • Data Visualization, Dashboard Development

Software Development with Python

  • Backend systems and APIs using frameworks like Django and Flask
  • Data cleaning, ETL (Extract, Transform, Load) processes, statistical analysis and predictive modeling
  • Analyze logs, monitoring networks, and vulnerability assessment.

Portfolio

My Works - I Mean works I can show

MS Power BI

Dashboard

MS Power BI

Dashboard

MS Power BI

Dashboard

Tableau

Dashboard

Python / Odoo

Development

Python / Rest API / Odoo

Development

Python Data Analytics

Data Analytics

Oracle Certified Professional

Certification

SQL Island

Certification

Leatning Data Analytics

Certification

Contact

Contact Me

My Profiles

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