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Rassim A.RA

Rassim A.

Data engineer

€450/day
Paris, FR
3-7 years
Talend
Snowflake
PL/SQL
Microsoft Power BI
Extract, Transform, Load (ETL)

Average response time: 1 hour

Freelancer profile translated to English.
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About Rassim

Data Engineer specializing in data integration and transformation.

I have participated in Data Engineering projects involving Talend, SQL, Snowflake, Airflow, and business intelligence environments. My experience has led me to work on requirements analysis, data mapping, ETL/ELT pipeline development, data mart population, as well as data processing support and maintenance.

I have also collaborated with business and technical teams to analyze impacts, understand data flows, and contribute to data quality.

Key Skills:

SQL
Talend
Snowflake
Airflow
Python
Business Intelligence Modeling (data marts, star schema)
Data Engineering
Insurance
Hotel industry
Consulting and Audits
Public Sector
Digital and IT Services

  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Nice (up to 50km), Lyon (up to 50km), Lille (up to 50km), Bordeaux (up to 50km)

Experience

  • Datamoura
    Data Engineer & ML Engineer
    MEDICAL
    October 2025 - May 2026 (7 months)
    Paris, France
    Design of an end-to-end data solution for collecting, anonymizing, and leveraging medical data, in collaboration with healthcare professionals (speech therapists).
    Key achievements:
    • Medical data collection and anonymization architecture (GDPR): flows, pseudonymization
    • Complete ETL pipelines: collection, cleaning, transformation, and loading into a relational database
    • Table schema modeling for ML model training
    • Production deployment via FastAPI, Docker, AWS
    Python Extract, Transform, Load (ETL) Docker FastAPI data-integration
  • Malakoff Humanis
    Data & Analytics Consultant
    BANKING AND INSURANCE
    September 2024 - September 2025 (1 year)
    Paris, France
    Assignment within a major insurance group. Financial data analysis and IT flow monitoring, in conjunction with business teams (finance, actuarial, compliance) and IT project management.
    Key achievements:
    • IT flow monitoring and analysis: checking the consistency of injected data, qualifying discrepancies
    • Analysis on GCP/BigQuery: monitoring steering KPIs, summaries for finance and actuarial teams
    • IT Project Management/Development Team coordination: requirements gathering, writing functional specifications, presenting analyses
    • IT impact analysis: qualifying anomalies, assessing impacts on downstream flows, reporting to business intelligence teams
    • Results: improved rigor in budget analyses and enhanced business intelligence visibility
    Extract, Transform, Load (ETL) PowerBI Python (Programming Language) Atlassian JIRA BigQuery
  • Sopra Steria
    Data Engineer
    DIGITAL AND IT
    September 2023 - September 2024 (1 year)
    Paris, France
    Assignment within the DIDD department for the SNDS and SNIRAM national health data systems. Team of 3-4 people. 6 projects managed end-to-end. Multi-source flows: processing tens of millions of records monthly.
    Key achievements:
    • End-to-end ETL flows via Talend: multi-source extraction, complex transformations, loading into Oracle and Snowflake on tables with hundreds of millions of rows
    • Talend optimization: Persistent Lookup to reduce database access, partitioning and parallelism of flows
    • SCD Type 2 historization: good practices for change traceability (e.g., integration of RPPS number in SNDS)
    • Physical/Conceptual Data Model (MPD/MCD) modeling via PowerAMC: star/snowflake schemas for health data warehousing
    • Creation of Business Objects (BO) universes for data repository consultation by business teams
    • SNTRP flow (Caisse de Mayotte): tens of millions of monthly records, performance optimization
    • SQL/PL-SQL and Shell development: populating data warehouse tables with very high cardinality
    • COBOL TMA: evolutionary and corrective maintenance of legacy CNAM treatments
    • Business/Technical coordination: business workshops, delivery validation, writing SFD/STD and technical documentation
    • Results: 6 data warehousing projects successfully integrated into national systems (SNTRP, RPPS…)
    PL/SQL DBT Extract, Transform, Load (ETL) Snowflake Talend
Check out Rassim's experience

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Education

  • Information Systems Engineer specializing in Data
    CESI
    Ingénieur en système d'information spécialisé en data,

Certifications

Skill set

Scripting Automation
Algorithms and Data Structures
Data integration (ETL, ELT and data warehousing)
Database Management (e.g., SQL, NoSQL)
ETL (Extract, Transform, Load) Processes
KPIs and Metric Definition and Monitoring
Exploratory Data Analysis
Computer Vision / Image Processing
Deep Learning
Natural Language Processing (NLP)
Predictive Modeling
Recommender Systems
Model Optimization
Model Training and Evaluation
SQL
Data Engineer
Git
Python
Amazon Web Services
Airflow
DBT
PostgreSQL
Data visualization
Docker
Testing and Quality Assurance
Batch Processing
Data Pipelines and Warehousing
AI and Advanced Analytics
Machine Learning Theory
Real-time Processing

Categories