Freelancer profile translated to English.

Description

💡 Data Engineer – Expert Spark, Hadoop, Cloud & Transformation Data

For 8 years, I have been supporting international groups in the industrialization, cleaning, and valorization of their data. Based in Toulouse, I work in person or 100% remotely, with a dual objective: technical reliability and measurable business impact.

🔗 Complete & High-Impact Offering:

• Cloud & Big Data Architecture : Spark, Hadoop, Kafka, GCP (certified), Azure (certified), AWS

• Data Pipelines & Automation : design/migration, CI/CD, Airflow, Python (PySpark), Scala, SQL

• Dataviz & Business : decision-making dashboards, advanced monitoring, custom dashboards (Tableau, Streamlit)

• Optimization & Security : scaling, tuning, governance, intelligent partitioning

• High ROI Projects : automatic anomaly detection (up to €3M identified), reduced time-to-production, team mentoring

🎯 Why Choose Me?

- Fast and documented delivery (large companies, scale-ups, and SMEs already supported)

- Scalable solutions that stand the test of time

- Clear communication: autonomy or training of internal teams

🌍 Area of Operation

Based in Toulouse, I operate throughout France (in-person or full remote).

📈 Contact

Ready to give meaning to your data? Let's discuss your data challenges, cloud migration, or advanced detection/analysis!

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent
German
Basic

Workplace preferences

Can work on-site

Toulouse (up to 50km), Pau (up to 50km), Paris (up to 50km)

Enovos
Freelance Data Engineer
ENERGY AND UTILITIES
December 2023 - June 2025 (1 year and 6 months)
Esch-sur-Alzette, Luxembourg
Data Analysis & Business Intelligence
➡️ Customer Retention Analysis
✅ Detection of lost revenue per customer
✅ Identification of competitors attracting the most customers

➡️ Monitoring the quality of calls received by call centers
➡️ Analysis of mobile application usage
✅ Understanding the most used features and guiding development priorities.

➡️ Analysis of network fees between the manager and the end customer.
✅ Detection of €3 million in billing errors
✅ Provision of a monthly representation of expected consumption
✅ Creation of a quarterly dashboard to detect anomalies before invoice validation.

Data Engineering & Web Intelligence
➡️ Design and implementation of web crawlers to extract data
✅ Enable competitive monitoring.

➡️ Development of solutions to interface unofficial APIs, thereby creating new data flows
✅ Ability to eliminate paid tools from the application chain

➡️ Construction of robust data models for cross-functional analyses
➡️ Creation and monitoring of Airflow pipelines
AWS Redshift Web Scraping Python Tableau SQL
ArcelorMittal
Freelance Data Engineer
RAW MATERIALS INDUSTRY
April 2023 - December 2023 (8 months)
Florange, France
Supervision of a Cloudera platform and DevOps
✔️ Implementation of monitoring on cluster resources
✔️ Creation of progressive alerts on the cluster (e.g., stronger or weaker alert on disk fill rate)
✔️ Automation of application deployments with Azure DevOps
✅ Time-to-production divided by 10
✅ Deployment errors divided by 4

Tech Lead PySpark
➡️ Support for engineering teams on PySpark development best practices
➡️ Tutoring junior developers on Spark application design
➡️ Performance optimization and architecture audit
✅ Execution time divided by 2 on average
✅ Implementation of data partitioning strategies allowing a 30% reduction in resources used
Hadoop Apache Kafka IBM Mainframe Python Spark
Spuerkeess
Consultant Data Architect
BANKING AND INSURANCE
October 2022 - January 2023 (3 months)
Luxembourg, Luxembourg
- Implementation of a solution for extracting 80 TB of user logs.
- Analysis and creation of a data model to enable the use of user logs
- Configuration of the Hadoop cluster for the project (IAM Role, job tuning, ...)
IBM Mainframe IBM Db2 Hadoop Spark Scala