Data Scientist
Exsell
(Internet and Information Technology, 10-50 employees)
Keywords
Skills
algorithms, python, Data quality, Machine Learning, Excel, Exasol, Alteryx, Qlik, Docker, Jira, Data Warehouse, data mapping, Teradata, PowerDesigner, Data Science, data management, analytics, QlikView, Microsoft SQL, R, ecommerce, data analysis, SPSS, Google, SPSS Modeler, database, Linear Regression, Telecommunication, data entry, Microsoft Office, Word, PowerPoint, Outlook, SPSS (Statistics and Modeler), KXEN, Quantum, Quanvert, MySQL, Google Analytics
Project history
01/2019
-
Present
• Development of new / improved algorithms in R and python for our customers
• Answering sales, marketing and business strategy questions from our customers thru Data quality assessment, Predictive modeling and Machine Learning techniques
• Developing, improving and putting into production customized models: RFM, Lead scoring, CLV, Forecasting, Attribution modeling, Churn score, Recommender model, Market basket
• Technologies used: Excel, Exasol, Alteryx, Qlik Sense, Tableau, R, python, Docker, Jira.
02/2018
-
12/2018
BI / Data Analyst
Ness Technology Romania
Responsibilities:
* Working in the Morocco team, for the project that consists in implementing a new Data Warehouse
for Societe Generale in north and sub-Saharan Africa.
* Communicating with the client and the business, identifying and analyzing the client´s and
business requirements, processing and implementing them;
* Working on structured analytic concepts and development of detailed conceptual solution;
* Design and description of data models, data transformation and data mapping;
* Documentation of developed solutions;
* Data assessment, preparing of inputs for the team of developers, preparing of testing scenarios
and execution of some tests;
* Design of reports and how to fill them with proper data;
* Technologies used: Excel, Teradata, PowerDesigner, Jira.
* Working in the Morocco team, for the project that consists in implementing a new Data Warehouse
for Societe Generale in north and sub-Saharan Africa.
* Communicating with the client and the business, identifying and analyzing the client´s and
business requirements, processing and implementing them;
* Working on structured analytic concepts and development of detailed conceptual solution;
* Design and description of data models, data transformation and data mapping;
* Documentation of developed solutions;
* Data assessment, preparing of inputs for the team of developers, preparing of testing scenarios
and execution of some tests;
* Design of reports and how to fill them with proper data;
* Technologies used: Excel, Teradata, PowerDesigner, Jira.
09/2016
-
01/2018
Head of Data Science
Quantum Data Science
Responsibilities:
* Data exploring and statistical modeling;
* Decrypting data for the business side, and decidedly "hands-on" and not just theoretical;
* Deal with very granular data - from data management platform (DMP);
* The ability to use analytics to drive key success metrics related to yield management and
revenue generation;
* Work with others to develop, refine and scale data management and analytics procedures, systems,
workflows, best practices, and other issues;
* Discovering new technologies;
* Coordinate the data science team;
* Technologies used: Excel, QlikView, Microsoft SQL, R, Python, Jira.
* Data exploring and statistical modeling;
* Decrypting data for the business side, and decidedly "hands-on" and not just theoretical;
* Deal with very granular data - from data management platform (DMP);
* The ability to use analytics to drive key success metrics related to yield management and
revenue generation;
* Work with others to develop, refine and scale data management and analytics procedures, systems,
workflows, best practices, and other issues;
* Discovering new technologies;
* Coordinate the data science team;
* Technologies used: Excel, QlikView, Microsoft SQL, R, Python, Jira.
05/2012
-
08/2016
Marketing Research Manager in the Marketing Department
eMAG
eMAG (the biggest ecommerce in Romania, with presence in Bulgaria, Hungary and Poland)
Period: May 2012 - August 2016
Position: Marketing Research Manager in the Marketing Department
Responsibilities:
* Coordinating the research activities of the company, proposing the best solutions for analysis
and interpreting the data in a valuable way to increase company performance both online and
offline;
* Coordinating the external research studies, both quantitative and qualitative;
* Coordinating the internal reports in terms of presentation and KPI definition;
* Studying the buying behavior of our clients and their segmentation. Objectives: increase
purchase frequency, increasing the number of categories sold / client, customer loyalty;
* Studying eMAG visitor behavior. Objectives: increase conversion rate;
* Studying the Internet user behavior in Romania and other markets targeted by eMAG in the future.
Objectives: attracting traffic;
* Internal and external data analysis (including retail) in an integrated manner in order to
understand the evolution of the market.
* Technologies used: Excel, SPSS, QlikView, Microsoft SQL, Google Analytics, Jira.
Period: May 2012 - August 2016
Position: Marketing Research Manager in the Marketing Department
Responsibilities:
* Coordinating the research activities of the company, proposing the best solutions for analysis
and interpreting the data in a valuable way to increase company performance both online and
offline;
* Coordinating the external research studies, both quantitative and qualitative;
* Coordinating the internal reports in terms of presentation and KPI definition;
* Studying the buying behavior of our clients and their segmentation. Objectives: increase
purchase frequency, increasing the number of categories sold / client, customer loyalty;
* Studying eMAG visitor behavior. Objectives: increase conversion rate;
* Studying the Internet user behavior in Romania and other markets targeted by eMAG in the future.
Objectives: attracting traffic;
* Internal and external data analysis (including retail) in an integrated manner in order to
understand the evolution of the market.
* Technologies used: Excel, SPSS, QlikView, Microsoft SQL, Google Analytics, Jira.
05/2011
-
05/2012
Customer Relationship Management Analyst
COSMOTE ROMANIAN MOBILE TELECOMMUNICATIONS SA (TELECOMMUNICATIONS COMPANY)
Responsibilities:
* Designing and developing statistical models to be used in Loyalty and Retention activities in
order to develop customer lifetime value;
* Designing new statistical models or enhances the existing ones with new relevant variables about
customer's behavior;
* Manipulating data bases in order to extract data, perform the analyses and create the
presentation with the conclusions and recommendations;
* Extracting information from multiple sources and consolidate results and conclusions in
compelling presentations;
* Technologies used: Excel, SPSS, SPSS Modeler.
* Designing and developing statistical models to be used in Loyalty and Retention activities in
order to develop customer lifetime value;
* Designing new statistical models or enhances the existing ones with new relevant variables about
customer's behavior;
* Manipulating data bases in order to extract data, perform the analyses and create the
presentation with the conclusions and recommendations;
* Extracting information from multiple sources and consolidate results and conclusions in
compelling presentations;
* Technologies used: Excel, SPSS, SPSS Modeler.
11/2010
-
05/2011
Data Analyst
IPSOS Interactive Services (MARKET RESEARCH INSTITUTE)
Responsibilities:
* Checking the logical correlations from the questionnaire
* Manage and analyze complex computer database
* Data tabulation using SPSS, Quantum, Quanvert
* Operating with different types of market studies
* Keeping contact with the clients about all things related to the data.
* Checking the logical correlations from the questionnaire
* Manage and analyze complex computer database
* Data tabulation using SPSS, Quantum, Quanvert
* Operating with different types of market studies
* Keeping contact with the clients about all things related to the data.
07/2008
-
11/2010
Data Analyst Executive
GfK ROMANIA S.R.L. (MARKET RESEARCH INSTITUTE)
Responsibilities:
* Checking the logical correlations from the questionnaire
* Manage and analyze complex computer database
* Establish statistical sampling
* Data tabulation using SPSS, Quantum, Quanvert
* Advanced analysis using SPSS : Testing statistical difference, Correlation, Correspondence
Analysis, Linear Regression
* Operating with different types of market studies
* Analyze studies on different markets: FMCG, Telecommunication, Finance, Durables, Retail
* Checking the logical correlations from the questionnaire
* Manage and analyze complex computer database
* Establish statistical sampling
* Data tabulation using SPSS, Quantum, Quanvert
* Advanced analysis using SPSS : Testing statistical difference, Correlation, Correspondence
Analysis, Linear Regression
* Operating with different types of market studies
* Analyze studies on different markets: FMCG, Telecommunication, Finance, Durables, Retail
07/2007
-
07/2008
Data Analyst
IPSOS Interactive Services (MARKET RESEARCH INSTITUTE)
Responsibilities:
* Checking the logical correlations from the questionnaire;
* Manage and analyze complex computer database;
* Data tabulation using SPSS, Quantum, Quanvert
* Checking the logical correlations from the questionnaire;
* Manage and analyze complex computer database;
* Data tabulation using SPSS, Quantum, Quanvert
08/2006
-
07/2007
Journalist
Realitatea Romaneasca
Responsibilities:
* Taking interviews, finding subjects for the articles;
* Writing the articles with subject from social and economic area for the daily paper
* Taking interviews, finding subjects for the articles;
* Writing the articles with subject from social and economic area for the daily paper
12/2005
-
07/2006
Operator data entry
Star Storage
Responsibilities:
* Data entering into standardized data base;
* Attention to details
* Data entering into standardized data base;
* Attention to details
02/2004
-
09/2005
PR and communication assistant
Media Mirror
Responsibilities:
* Following the press appearances for our clients (political or economical public figures)
* Following the press appearances for our clients (political or economical public figures)
10/2003
-
11/2003
interviewer
CSOP (MARKET RESEARCH INSTITUTE)
02/2003
-
05/2003
interviewer
IRSOP (MARKET RESEARCH INSTITUTE)
Local Availability
Only available in these countries:
Netherlands
50% of the time
