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Cristian R.CR

Cristian R.

Data Analyst | Expert Tableau & KNIME (ETL)

€450/day
3 projects
La Ciotat, FR
3-7 years
Knime
Tableau
Python
SQL
API

Average response time: 1 hour

Freelancer profile translated to English.
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About Cristian

👋 Hello! I am a versatile professional with a strong background in Big Data, Economics, Management, and Computer Science. I specialize in transforming complex data into actionable insights and building robust data infrastructures to support BI.

Skills and Tools:

Data Analysis and Visualization: Tableau, KNIME
Programming: Python (Pandas, PySpark, TensorFlow), Java, JavaScript
Data Management and Engineering: SQL, Alteryx, Azure, KNIME, ETL processes
Others: MS Office, CRM, Web scraping, API

Experience Highlights:

- Led data visualization and preparation projects at Mydral in Paris, recognized as KNIME's contributor of the month.
- Managed data migration and engineering projects for clients such as Shell and CNP Assurances, ensuring smooth transitions and optimized workflows.
- Improved data collection, analysis, and visualization.
- I am fluent in English, Italian, and French, with an intermediate level in Russian, and Romanian is my native language, enabling me to work effectively with international clients.


Why Choose Me?

- Analytical and Engineering Excellence: Capable of solving complex problems with data-driven insights and building scalable data solutions.
- Technical Proficiency: Experienced in utilizing advanced data tools and technologies for analysis and engineering.
- Client-Centric Approach: Dedicated to understanding client needs and delivering tailored solutions.
- Proven Track Record: Successful in delivering impactful data projects and engineering solutions.

🚀 Let's collaborate to unlock your data's potential and build the infrastructure you need. Contact me to discuss your project requirements!
Insurance
Banking and Financial Services
Large Retailers
Consulting and Audits
Civil and Social Organizations

  • Romanian

    Native or bilingual

  • English

    Native or bilingual

  • French

    Native or bilingual

  • Italian

    Native or bilingual

  • Russian

    Fluent

  • Spanish

    Conversational

  • Greek

    Basic

Can work on-site
La Ciotat (up to 50km), Marseille (up to 10km)

Experience

  • Roquette
    Data engineer
    CHEMICAL
    September 2024 - March 2025 (5 months)
    La Ciotat, France
    Managed a data transformation project involving themigrationfrom an old ETL tool, **Alteryx**, to a new one, **KNIME**.

    Tasks:

    *Developandtransformold workflows into new workflows on KNIME

    *Trainthe data community on using and developing data transformation workflows in KNIME and create new training materials
    • Troubleshoot andsupportdevelopers in using ETL


    ETL Alteryx Knime Qlik
  • Mydral
    Data Analyst
    CONSULTING AND AUDITS
    September 2021 - September 2024 (3 years and 1 month)
    Paris, France
    Mydral is a consulting firm focused on data valorization.
    Main activities:
    ➞ Development of dashboards and workflows using Tableau, KNIME, Alteryx, and Python.
    ➞ Organization of training sessions on Tableau and KNIME.
    ➞ Recognized as KNIME's top contributor (March 2023).


    Key client projects:
    • **DGFIP**: Tableau dashboards for the healthcare industry in France.
    *CNP Assurances& **Shell**: Migration of Alteryx workflows to KNIME.
    • **GIE Cartes Bancaires**: Big data management and workflow development with KNIME.
    • **Caisse des Dépôts**: Management of Tableau Server architecture and support.

    ⛸Internal projects:
    ➞ Tableau and KNIME E-learning: Updating training modules on Tableau and KNIME.
    ➞ Creation of a Tableau dashboard on French presidential candidates using data scraped from Google Trends and Wikipedia.
    ➞ Received KNIME Contributor of the Month award for March 2023 for developing financial components.
    Knime Alteryx Tableau software Python Programming JavaScript Agile methodology REST APIs Extract, Transform, Load (ETL) PostgreSQL SQL AWS Glue Azure Data Factory Impala
  • AIESEC Česká republika
    Responsible for Organizational Development
    ENVIRONMENTAL
    June 2020 - July 2021 (1 year and 1 month)
    Prague, Czechia
    Responsible for the organizational development of the Czech national branch of AIESEC (NGO) and a member of its executive board.

    As Head of Organizational Development, I was in charge of creating the national organizational strategy and implementing it in the local chapters.
    AIESEC in the Czech Republic has 10 local chapters, and my main role was to ensure all local chapters experienced product growth, taking care of their human resources and financial capacity.

    My main areas of focus are:
    1) Organizational Health and Diagnostics:
    • Development of dashboards and data analysis.
    • Creation of data collection infrastructure.
    • Measuring organizational performance and health, and helping local chapters find solutions to their problems.
    2) Local Chapter Development:
    • Creating and implementing strategies to improve operations in local chapters.
    3) Organizational Culture:
    • Diagnosis and improvement of organizational culture.
    Team Leadership Google Analytics Google Data Studio Google Sheets Typeform REST APIs 4DX
Check out Cristian's experience

Reviews

5.0

Out of 3 ratings

A

Amandine

Roquette

Several weeks project

-

Reviewed on 4/4/2025

Cristian terminated his mission perfectly, ensuring we were able to hand over the remaining work. I acknowledge him for his support!
A

Amandine

Roquette

Reviewed on 4/4/2025

Cristian did a wonderful job during his mission: he patiently migrated many workflows from Alteryx to KNIME and supported tens of users. He always finds the right level of complexity to explain his work to people from various domains and with different levels of knowledge on the two software platforms. He is reliable, professional, and easy to work with. It was a pleasure working together!
Show all 3 reviews

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Education

  • Master's degree, Big Data
    CFA SUP DE VINCI, Paris, France
    2023
    DWH, Python, Deep Learning, Web scraping, AWS, ETL, Hadoop, Linux, Azure, Data architecture
  • Bachelor of Science in Economics, Management and Computer Science
    Università Bocconi, Milan, Italy
    2019
    Machine Learning, Econometrics, Advanced Statistics, Computer science, Python, R studio, Matlab, Advanced mathematics and algebra.

Certifications

Skill set

Data science
Alteryx
ETL
Database administration
Business intelligence
PostgreSQL
GitHub
Agile methodology
Spark
Database Management (e.g., SQL, NoSQL)
Data integration (ETL, ELT and data warehousing)
Data Cleaning and Preprocessing
Web scraping
Big Data
Extract, Transform, Load (ETL)
Data Visualization
Exploratory Data Analysis
KPIs and Metric Definition and Monitoring
AI and Advanced Analytics
Backlog Refinement
Deep Learning
Model Optimization
REST APIs
Qlik
Tableau software
Python Programming
JavaScript
AWS Glue
Azure Data Factory
Impala
Team Leadership
Google Analytics
Google Data Studio
Google Sheets
Typeform
4DX
Microsoft Excel
MySQL
Leadership
Teamwork
Product management
Branding
Marketing
Growth Strategy
Team management
Teamwork

Categories