About Mouna
French
Native or bilingual
English
Fluent
Experience
- Île-de-France MobilitésSenior Data EngineerTRANSPORTATIONOctober 2024 - Today (1 year and 10 months)Migration Data Platform to DBT & GCPMigration and modernization of a legacy decision-making platform to a modern cloud architecture based on Google Cloud Platform (GCP), BigQuery, and DBT for a major player in the transport sector.• Design and development of ELT pipelines on GCP and BigQuery.• Data Warehouse modeling and implementation of DBT models (Bronze, Silver, Gold).• Migration of legacy processes and integration of existing business rules.• Optimization of BigQuery performance and costs through partitioning, clustering, and SQL optimization.• Implementation of Infrastructure as Code with Terraform and industrialization of deployments.• Industrialization and orchestration of processes via Cloud Run, Cloud Scheduler, and Artifact Registry to automate the execution and deployment of data pipelines.• Migration of BI dashboards (Tableau) to the new platform.• Support for business teams during functional acceptance testing and production deployment.Environment: GCP (BigQuery, Cloud Run, Cloud Storage, Cloud Scheduler, Artifact Registry), DBT, Python, Terraform, SQL, Tableau, GitLab CI/CD, Docker.
- Île-de-France MobilitésData EngineerTRANSPORTATIONJanuary 2022 - September 2024 (2 years and 8 months)Lyon, FranceDWH & ELT Pipelines Redesign (Talend, Tableau, SQL)Redesign and optimization of the Data Warehouse (DWH) for a major player in the transport sector in France, to improve data quality, process performance, and reliability of decision-making reporting.• Design and evolution of the decision-making data model (facts, dimensions, aggregates) to meet analytical and business needs.• Development and maintenance of integration pipelines under Talend for feeding the Data Warehouse from multiple data sources.• Implementation of data control and validation mechanisms: anomaly detection, management of integration discrepancies, and automation of error data recycling.• Optimization of ETL processes and SQL queries to improve the overall performance of the decision-making platform.• Development and evolution of Tableau dashboards for activity monitoring and business indicator tracking.• Participation in production deployments, user support, and incident resolution.• Technical supervision of interns and onboarding of new team members.Environment: Talend, SQL, PostgreSQL, Tableau, Data Warehouse, Decision modeling, Jira, Confluence.
- Engie Home ServicesBI & Data EngineerENERGY AND UTILITIESOctober 2019 - December 2021 (2 years and 2 months)Lyon, FranceReporting & BI Models RedesignRedesign of the reporting module for a call routing management solution for contact centers of a major player in the energy sector, with the goal of improving data exploitation and activity monitoring.• Gathering and analysis of business needs through functional workshops with stakeholders.• Definition and implementation of performance indicators (KPIs) and associated calculation rules.• Design and development of reports and dashboards based on the platform's operational data.• Optimization of processes and queries to improve performance and response times of restitutions.• Participation in acceptance testing, production deployment, and post-deployment monitoring.• Training and support for users in adopting new reporting.Environment: JasperReports, MongoDB, SQL, Business Intelligence Reporting.
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Education
- Engineering degreeISIMA - Clermont Auvergne INP2017Diplôme d'ingénieur
- Engineering degreeENSIAS - Ecole Nationale Supérieure d'Informatique et d'Analyse des Systèmes2015Diplôme d'ingénieur