Leonardas Š.

Bi/Etl Developer

555 dollar

My experience


Omnicom Media GroupAugust 2017 - Present

· Developing and maintaining ETL packages for importing and organizing BI data

· Implementing and supporting BI solutions including monitoring

· Plan, design, configure, install and deploy BI databases

· Develop data visualization solutions and integrations

· Work with other team to answer client problems and develop solutions

· Provide technical support and training (as needed) to agency’s employees

· Write comprehensive documentation, help develop tools to automate/monitor application performance, and work on optimization and tuning of various systems

BarclaysSeptember 2016 - August 2017

The design, development and maintenance of the core SQL reporting database in Functions, from design to
Implementation including User Interface.
Production of core data for use in Functions MI, including utilising online dashboards such as Qlikview.
Deployment of applications fixes, patches, upgrades and improvements to SQL Database 
Development and execution/co-ordination of testing  
Performing ad-hoc requests related to application data/configurations/access/other
Provision of support and guidance on project management MI and the use of tools and techniques for
Creation of the MI to programme and project managers and their teams.
The administration of change control against the database and tracking of all changes
Assists with the compilation of project management reports.
Ensuring adherence to relevant project standards and measures as required.
Develop MI reporting dashboards through excel, and other tools as identified

AlnaSeptember 2015 - September 2016

Government system development and maintenance. Programming functional parts with PL/SQL and

creating reports/documents with iReports (Jasperserver).

iTree FinanceNovember 2013 - August 2015

ETL, Data Warehousing, Data migration, Data integration, Reporting.

Working with Oracle, MS SQL and MySQL databases.

Baltnetos komunikacijosSeptember 2012 - September 2013

My stack

Analysis methods and tools



SQLAlchemy, Pandas


PL/SQL, SQL, MDX, Python

Application servers


Business Intelligence

OLAP, Business Intelligence, JasperReports, Data Warehouse, ETL, Mondrian


MySQL, Oracle, Microsoft SQL Server, PostGreSQL

Big Data

Data Visualization

My education and trainings

- Vilniaus Gedimino Technikos Universitetas - Bachelor's degree - Telecommunications Engineering2009 - 2013

- Universidade de Aveiro / University of Aveiro - Bachelor's degree - Electrical, Electronics and Communications Engineering2012 - 2012