Veselin Z. Profile

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4.8

(7 reviews)

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$80 USD / hour

sofia,

bulgaria

$80 USD / hour

It's currently 8:00 PM here

Joined January 14, 2011

1 Recommendation

Veselin Z.

@veskojl

4.8

(7 reviews)

4.6

88%

$80 USD / hour

sofia,

bulgaria

$80 USD / hour

100%

Jobs Completed

100%

On Budget

100%

On Time

13%

Repeat Hire Rate

Data Warehouse Architect

I am a Data Warehouse (DWH) expert with solid knowledge and proven experience. I have 12+ years within the Business Intelligence (BI) field and I've worked on a different type of DWH projects: from small ones to medium sized and large scale solutions. My core competences are DWH and ETL design and implementation, but I have no fear to create complex charts and dashboards. Over the years I've gained experience of various DWH/ETL/BI tools and technologies like: Teradata, Oracle, MS SQL Server, Pentaho BI, Microsoft BI (SSIS, SSAS, SSRS), and many others. I'm looking for challenging DWH, ETL or BI projects.

See all Business Intelligence Analysts in Bulgaria

Contact Veselin Z. about your job

Portfolio

Data Testing Framework

Files Crawler

Intelligent Trader is a retail decision support tool, which goal is to facilitate and optimize the actions taken by the owner of online business when trying to maximize the trading profit.
Project is developed using the Pentaho BI technologies, MySQL and Infobright databases and Mondrian as an OLAP provider. It has staging area for the data, where later is cleansed and aggregated, data warehouse area using Infobright DB as storage and OLAP cube has 5 fact tables, 7 dimensions and about 180 metrics.

The picture shows sample loading of a fact table.

Key technologies:
Pentaho BI 4.x,
MySQL 5.x,
Infobright 3.x,
Mondrian,
Liferay Portal 4.x

E-commerce Data Warehouse

Data Testing Framework

Files Crawler

E-commerce Data Warehouse

Reviews

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Showing 1 - 5 out of 6 reviews

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5.0

€540.22 EUR

Project for Veselin Z.

It was a great pleasure to work with Veselin He has a lot of experience in the whole area of BI, ETL and DWH. He will be on my list if i start the next one. [07 August, 2018] everything best !

+1 more

Christian D.

@christiandollfus

•

6 years ago

5.0

$664.93 AUD

Fix my Pentaho DW transformations

Vesko (veselin Z) quickly picked up what I needed and delivered 100%. He not only fixed my Pentaho issues, but also provided excellent guidance on a few mysql & linux issues that were impacting performance. Very happy with the outcome.

Linux

MySQL

Pentaho

Matt H.

@matt176

•

6 years ago

5.0

$75.00 USD

only For Bulgaria people(Check address ,Take Picture, )

He is kind, and He is honnest. so He is very very good workers

Business Intelligence

Akio I.

@chanpeter

•

6 years ago

5.0

€60.00 EUR

json to pentaho

Quick and good, nice to work with. Very helpful.

JSON

Marian R.

@mritter3

•

7 years ago

4.4

$446.80 USD

Consulting on setting up a open source business intelligence server

Veskojl completed a complex task in setting up and developing reports in Pentaho BI. Communication went smooth and business understanding was excellent. My recommendations.

Data Warehousing

Business Intelligence

Michael R.

@michaelringkvist

•

7 years ago

Experience

SmartIT

Nov 2014 - Nov 2016 (2 years)

Smart IT (http://smartit.bg) is a Bulgaria based financial company, specialized in the consumer financing and personal loans. My role as a BI Architect was to gather, review and compile all of the business requirements, as well as to translate these requirements to technical tasks and finally implement a Proof of Concept (PoC) version of the Data Warehouse.

Xentio Ltd.

Apr 2012 - Apr 2014 (2 years)

Xentio Ltd. (http://www.xentio.com) is a Bulgarian based company that provides outsourcing and business analytics solutions. My role as a senior developer was to enhance and improve the Data Warehouse as well as the ETL process responsible for the data loading. Another focus of the position was to maintain the Cognos BI part of the project.

eCommera Ltd.

Jan 2011 - Jan 2012 (1 year)

eCommera Ltd. is UK based company which provides e-commerce solutions Intelligent Trader is decisions support tool which goal is to optimize performance and profit your online business. I was part of the Data Warehouse team, which role was to extract, cleanse and store trading and web analytical data from third party providers. The ETL has been developed with Pentaho and MySQL as a storage. DWH contains 7 cubes and about 180 measures, built on top of an Inforbright database.