Freelancer profile translated to English.
Back to original languageAbout 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
- RATPData EngineerTRANSPORTATIONNovember 2023 - Today (2 years and 7 months)Paris, FranceThe 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).
- RATPData EngineerTRANSPORTATIONNovember 2023 - Today (2 years and 7 months)Paris, FranceImplementation 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.
- SNCFData EngineerTRANSPORTATIONNovember 2022 - October 2023 (1 year)Paris, FranceUnderstanding 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.
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Education
- Bachelor's Degree, Computer Science, Information Technologies OptionUniversity Abdelhamid MEHRI Constantine 2, Constantine (Algeria)2017Licence, Informatique option Technologies de l'Informations
- Master's Degree, Computer ScienceUniversity of Poitiers2019Master, Informatique