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Mountassar GasmiMG

Mountassar Gasmi

Data Engineer

€550/day
Créteil, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mountassar

My name is Mountassar 😊, passionate about Data Engineering, Data Analysis, and more broadly about everything related to Software Engineering.

I have been in the data field for 4 years, starting as a Data Engineer in a retail-focused startup, which allowed me to develop rigor and a taste for Data projects. I then moved on to 2 very enriching experiences in the transport sector, where I gained expertise in several modern technologies.

I particularly enjoy keeping up with technological advancements to learn and discover new things, which I try to deepen through personal projects.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Créteil (up to 20km)

Experience

  • RATP
    Data Engineer
    TRANSPORTATION
    November 2023 - Today (2 years and 7 months)
    Paris, France
    The objective is to retrieve information related to 'validation'. This anonymized data is provided daily by several data sources in the form of flat files. It is stored permanently on the Big Data platform, based on Hadoop for storage and Spark for calculations.

    Understanding the business aspect and project challenges.
    • Correction of anomalies and implementation of associated solutions.
    • Development of planned evolutions.
    • Performing tasks related to installation, patch preparation, and version upgrades.
    • Conducting necessary analyses and assisting with MOE and MOA acceptance testing.
    • Deployment (in/out of) production of evolutions.
    • Updating technical specifications (STD).
    Spark Scala Hadoop HDFS Yarn Hive Shell SQL HBase Phoenix Ambari Hue Qlik
  • RATP
    Data Engineer
    TRANSPORTATION
    November 2023 - Today (2 years and 7 months)
    Paris, France
    Implementation of a Data Vault and use of the Medallion pattern for customer data management.
    · Development of pipelines on Databricks with Scala for ingestion, transformation, and creation of unified profiles.
    · Storage and processing of data on Azure Data Lake, managing different data layers (bronze, silver, gold).
    · Collaboration with marketing teams for analysis based on consolidated profiles.
    · Real-time data flow monitoring and quality assurance via Databricks.
    · Participation in Agile meetings with MOA to gather requirements, task tracking with Jira, and documentation on Confluence.
    Microsoft Azure Databricks Python Scala SQL SQL Server Spark Bash UNIX Microsoft Power BI
  • SNCF
    Data Engineer
    TRANSPORTATION
    November 2022 - October 2023 (1 year)
    Paris, France
    Understanding the business aspect and project challenges.
    • Design of a technical architecture adapted to large data volumes.
    • Design and development of a RESTful Web Service offering several services for calculating the ICV (Customer Value Index).
    • Delivery of ICV results through business acceptance testing to improve ICV results.
    • Implementation of a deployment project using Jenkins and Kubernetes.
    • Deployment (in/out of) production of the Web service.
    • Technical documentation of the project.
    Python Pandas Numpy FastAPI Celery Redis Flower SQL Oracle DB AWS S3 Kubernetes Jenkins Helm Datadog Gitlab Atlassian JIRA Agile Methodology

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Education

  • Bachelor's Degree, Computer Science, Information Technologies Option
    University Abdelhamid MEHRI Constantine 2, Constantine (Algeria)
    2017
    Licence, Informatique option Technologies de l'Informations
  • Master's Degree, Computer Science
    University of Poitiers
    2019
    Master, Informatique

Skill set (67)

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