Big Data Architect
2018 - PRESENTXenial- Designed, developed, and optimized data warehouses.
- Worked on the full cycle of ETL; including development and performance optimization and custom data transformation.
- Architected database designs.
- Wrote business reports and developed dashboards.
- Trained, mentored, and implemented best-practice policies for the team.
Technologies: Amazon Web Services (AWS), SQL, Python, Redshift, Amazon S3 (AWS S3), MongoDBSenior QlikView Developer
2014 - 2018Citigroup- Developed QlikView dashboards as part of a larger effort with a team using Scrum methodology.
- Spearheaded requirements analysis.
- Built QVD feeds.
- Created data models and visualizations.
- Provided thorough documentation for solutions and processes as well as implemented data quality assurance.
Technologies: uDeploy, SQL, Oracle Database, SAP BusinessObjects Data Service (BODS), QlikViewSenior BI Presale Developer
2011 - 2014Oracle- Provided technical support for presale activities.
- Developed and demonstrated various types of proof of concept (POC).
- Created customer presentations and demonstrated the products while attending forums and conferences.
- Developed and conducted workshops and trainings.
Technologies: VirtualBox, SQL, Oracle, Oracle Business Intelligence Enterprise Edition 11g (OBIEE)Database Developer
2010 - 2011Teradata- Implemented a social network activity project.
- Created technical specification designs.
- Wrote solution documentation.
- Designed and verified ETL scripts.
Technologies: Teradata, Oracle Data Integrator (ODI), PL/SQL, SQLBI Architect
2008 - 2010Teradata- Implemented data warehouses.
- Created BI architecture designs.
- Built data models.
- Designed and developed a business objects universe.
- Developed web reports.
- Planned and reviewed tasks.
Technologies: Teradata, SQL, SAP BusinessObjects (BO)BI Developer
2007 - 2008Teradata- Implemented data warehouses.
- Conducted requirements analyses.
- Designed the technical specifications.
- Tracked and fixed bugs.
- Wrote solution documentation.
- Created data models.
Technologies: Teradata, SQL, SAP BusinessObjects (BO)Freelance Engineer
2005 - 2007Freelance Work- Provided data for analytical departments.
- Gathered user requirements.
- Developed reports.
- Worked with billing statistics.
- Created data models.
- Implemented SQL tuning and developed with PL/SQL.
Technologies: Oracle Database, HTML, PL/SQL, SQLDatabase Developer
2003 - 2005Citia BTC- Implemented an automated budgeting system for the bank.
- Implemented a mathematical model.
- Worked on database development.
- Designed ETL scripts and specifications.
Technologies: Oracle Database, SAP BusinessObjects Data Service (BODS), Oracle, Oracle Application Express (APEX)