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Description

Before, I was a Developer... But that was before!

Now, I am a Value Creator...

.....

Before, I was an Executor... But that was before!

Now, I am a Consultant...

.....

Languages

English
Fluent
Arabic
Native or bilingual
French
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 30km)

DECATHLON SE - FRANCE
Data Architect & Engineer (Freelance)
SPORTS
February 2022 - May 2025 (3 years and 3 months)
Paris, France
For 3 years, I participated in undertaking an ambitious technological project of
dismantling (decommissioning) a large MyDKT monolith.

Within the User Analytics team, I actively contributed to the development of the new
Decathlon's Data Platform while supporting Data Owners on the process of
decommissioning tools from the old ecosystem.

As a Senior Data Engineer with DevOps skills, I also
participated in the design of various architectures:
Data Exchange pipelines with key partners such as Valiuz, HBond, Epsilon, etc.
Data Streaming from the Data Lake to different Data Domains.
Migration of legacy ETL architectures on Talend to more modern solutions on Airflow and Databricks.
I actively evangelized the importance of automated testing and good practices within
the team, thus improving the quality and reliability of deliverables.

Stack:
Python, Scala
pyspark, SQL, DeltaLake, Polars
Airflow
Databricks, EMR, dbt
S3, Glue, Redshift
Crypto
Github Actions, Mill, CI/CD,
Kafka
Kubernetes, Podman
Collibra
Slack for alerts and monitoring
Airflow PySpark Databricks Data architecture Amazon Redshift
Kering
Tech Lead, Data Engineer, Spark/Scala Developer (Freelance)
LUXURY GOODS
October 2018 - Today (7 years and 8 months)
Paris, France
For 3 years, I contributed to theEagle Programproject (re-internalization of eCommerce & omnichannel at Kering) within theBI/Data Analyticsteam. I initially developed a BI backend with external Hive tables (data on S3), optimized performance via Hive LLAP (sub-second responses), and implemented Druid cubes for real-time. Faced with the limitations of Druid (complexity, limited connectors), we migrated to Athena (serverless, standard SQL, reduced cost).

As a **Senior Data Engineer/DevOps**, I designed several applications:

Scala for ingestion into the datalake.
Data transformation (Raw → Formatted/Aggregated/Usage).
Management of Glue Crawlers, Athena/Tableau updates.
Infra as Code and Viz application.

I used NiFi for collections (high productivity) and job orchestration.

For CI/CD, I implemented:
Docker images per application.
Jenkins pipelines (compilation, tests, Sonar reports, S3 deployment).
Release management with sbt-dynver.

Finally, I set up monitoring/alerting via a Slack Pipeline Monitor based on Breadcrumb Trail.
Spark AWS Data Engineer Data Lake Big Query NiFi Distributed Architecture Scala
ESGI (Ecole Supérieure de Génie Informatique)
Functional Programming Teacher with Scala
EDUCATION AND E-LEARNING
November 2019 - July 2020 (9 months)
Paris, France
Teacher: Functional Programming with Scala (60h)
2 classes of 4th year (60 students)
School year 2019 – 2020
Higher Education Corrections Trainer Scala