Freelancer profile translated to English.
Back to original languageAbout Yassine
Senior Data Engineer & Analytics | Python · GCP · Snowflake · Airflow · dbt · Power BI · AI/LLM
Senior Data Engineer with over 8 years of experience in cloud pipeline design, data warehousing, analytics, and software engineering. I cover the entire data lifecycle: from large-scale ingestion to decision-making dashboards, including data orchestration and governance.
What I concretely bring:
- **Robust Data Pipelines**: Multi-cloud ETL/ELT architecture (GCP, Azure, Snowflake, dbt, Airflow, PySpark) processing millions of daily events
- **Analytics & BI**: Creation of Power BI and Looker Studio dashboards analyzing over 5 million actions for 3,000+ clients, with tracking of business KPIs (acquisition, adoption, performance, velocity).
- **Applied AI & LLM**: Feasibility study and prompt engineering for concrete business use cases (anomaly detection, compliance, workflow automation).
- **Measurable Impact**: 25% reduction in storage, 200% improvement in product responsiveness, and saving 5 hours of manual work/week through Power Automate automation.
Certified IBM Data Science, PL-300 (Power BI), PSM I, and Prince2, I work both independently and in Agile/Scrum teams. Available for freelance missions remotely or in the Toulouse region.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- SageTechnical Solution Engineer | Data Engineer | Data AnalystSOFTWARE PUBLISHINGDecember 2021 - Today (4 years and 6 months)Toulouse, France
- Architecture and operation of multi-cloud data pipelines using MSSQL, Azure Pipeline, AWS S3, Snowflake, dbt, Dagster, and SQL; exposing payroll data to over 500 clients and ingesting daily changes from 70+ databases and 500+ schemas.
- Development of large-scale analytical data ingestion pipelines (REST API, Parquet, GCS, BigQuery) processing over 5 million user events; orchestration with Airflow and PySpark on Dataproc, eliminating 100% of memory pressure on orchestration servers.
- Deployment of decision-making and product dashboards (Power BI, Looker Studio) analyzing over 5 million actions for 3,000+ clients; tracking customer acquisition, module adoption, workforce, sprint velocity, and bug trends across Enterprise and SME segments.
- Leading usage, performance, and behavior analyses (SQL, Power BI, New Relic); identifying inactive accounts and cleaning databases, reducing storage by 25% and improving product responsiveness by 200%.
- Automation of critical workflows via Power Automate, saving 5 hours of manual work per week; creation of flows for account provisioning (10/day), release management, and security monitoring.
- Feasibility study on generative AI for a French payroll product: definition of 4 use cases (anomaly detection, DSN compliance, workflow automation), architecture design, and prompt engineering (LLM) implementation.
- EDF RenewablesDigitalization Project Manager | Data AnalystENERGY AND UTILITIESOctober 2020 - October 2021 (1 year)Courbevoie, FranceIntegrated into the Performance and Industrial Services Department, responsible for managing digitalization projects to improve operational efficiency.Digital Coordination & Planning🤝 Coordination of stakeholders for internal digital projects (80 employees).📍 Development of project schedules using MS Project, ensuring milestone adherence.Automation & App Development🧩 Design of automated flows and Power Apps to optimize business processes.📊 Analysis of usage statistics from 8 SharePoint sites to enhance communication effectiveness.SharePoint Management & Training🛠️ Creation and updating of SharePoint Online pages.🌍 Conducting training for international teams (approx. 10 people) on Power BI, Power Automate, and other Microsoft tools.Key Achievements👥 Coordinated a team of 6 for a major SharePoint migration.📄 Delivered a dynamic feedback reporting interface between Procurement and Operations departments, reducing data entry time by 40%.⚡ Automated SharePoint page creation via Forms, reducing processing time by 100%.📈 Implemented a dashboard for monitoring SharePoint platform usage.
- Safran Helicopter EnginesSoftware EngineerAVIATION AND AEROSPACESeptember 2017 - September 2020 (3 years)Bordes, FranceIntegrated into the Engine Test Bench Performance & Progress Monitoring Department, as a Java/AngularJS developer in an Agile/Scrum environment.Agile Management & Development📋 Writing the product backlog and planning Agile sprints.⚙️ Task allocation and prioritization using Redmine.Database & Application Modeling🧠 Database design using Merise methodology.🧱 Application modeling using UML.Implementation & Configuration🛢️ MariaDB/SQL database implementation.☕ Development of features in Java, Hibernate, Spring, AngularJS.🔌 Configuration of RESTful Web Services.User Interface & Testing🖥️ Creation of interfaces in HTML5, CSS3, Bootstrap 4.🧪 Performing unit and functional tests with JUnit, Postman, Mockito.Deployment & Documentation🌐 Deployment on Tomcat server.📚 Writing technical documentation, user manuals, and deployment procedures on the Safran cloud.Key Achievements🤝 Key member of a Scrum team, responsible for implementing a web application connecting 7 services.📐 Created a 2D drawing tool for instrumentation points on engine cross-sections, facilitating data management.🔄 Developed an M2M tool for inter-platform communication, integrated into the engine test bench acquisition system via LDAP and SOAP.
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Education
- MS Project and Program ManagementSkema Business School2021MS Project and Program Managment
- Engineering Degree3iL - Engineering School in IT2020Engineering Degree