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Yasmine ChellyYC

Yasmine Chelly

Data Engineer

€550/day
Paris, FR
3-7 years

Average response time: 1 hour

About Yasmine

As a Data Engineer, I design and build scalable data pipelines that collect, transform, and structure data to drive business insights and operational optimization.

I work with Python, Golang, and SQL, leveraging tools such as PySpark, Kafka, Airflow, PostgreSQL, and Cassandra to process large-scale, complex datasets.

My focus is on delivering reliable, high-quality, and efficient data systems that support decision-making and growth.

I ensure every pipeline is production-ready, maintainable, and built for performance.
  • English

    Native or bilingual

  • French

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Claimy
    Data Engineer
    LEGAL
    May 2024 - August 2025 (1 year and 3 months)
    Paris, France
    • • Developed a music metadata matching pipeline with a human in the loop and a callback trigger that blacklists mismatches using google workflows, cloud Functions, Firestore and BigQuery. (Matching Project)
    • • Collected and standardized streaming, TV, and radio data from multiple sources. (Enrichment Project)
    • • Processing of client documents in various formats, with extraction of works and revenues to ensure data reliability and centralization. (Client Documents Project)
    • • Developed API endpoints that implemented search functionality on the Claimy platform using Elasticsearch. . (Claimy Platform Backend)
    • • Calculated artist earnings from collected data by considering multiple factors—such as Spotify stream counts and, for TV and radio, program duration, type, and time slot—and compared the results with the artist's actual earnings to identify missing royalties. Compare Project)
    • • Helped on extending the Compare project to estimate future royalties, by revenue forecasting for artists through predictive models. (Estimations Project)
    • • Generating of claiming proofs for artists to recover missing royalties, with automated data processing and calculation workflows. (Claiming Proofs Project) Technologies: .Golang, Python, Gitlab, BigQuery, firebase, elastic search, influxBD, Neo4j, Google Cloud Storage, cloud functions, Google workflows and schedulers, Dataflow, Pub/Sub messaging, Application Integration
    Elasticsearch Python Big Query Gitlab Golang
  • Datagram
    Data Engineer/Scientist
    E-COMMERCE
    January 2021 - December 2023 (2 years and 11 months)
    Tunis, Tunisia
    • • Built data pipelines to extract, transform, clean and load big volumes of data using python, SQL and pyspark.
    • • Orchestrated and monitored 40+ pipelines using Airflow.
    • • Helped in recruiting and mentoring developers by organizing meetings and reviewing code in a team of 20+ data engineers.
    • • Participated in defining and implementing MLOPS and DataOps pipelines using different open source tools such as Grafana, airflow, MLflow, etc.
    • • Trained and deployed a Linear regression model using xgboost to estimate the media budget used in running ads.
    • • Trained a forecasting model using Facebook's Prophet to predict required supplies for each store and region. Technologies: Python, SQL, Spark, Kafka, Airflow, cassandra, postgresql, Superset, Pycharm, Terminal, AWS S3, Bitbucket et gitlab
    Python Apache Kafka Gitlab Spark Apache Airflow
  • We Settle
    Data Scientist
    August 2020 - December 2020 (4 months)
    Tunis, Tunisia
    • • Developed machine learning models (NER, encoder/decoder models) that process invoices and checks and categorizes different fields.
    • • Benchmarked different solutions to extract structured data from semi structured documents.
    • • Implemented a Proof Of Concept that detects tables from PDFs. Technologies: Python, Pandas, Numpy, Tesseract, SpaCy, LayoutLM, encoders/ decoders.

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Education

  • Engineering in computer science and applied mathematics
    National Engineering School of Sfax
    2020
    Engineering in computer science and applied mathematics

Skill set

Categories