Aymen Trimech
Lead Data Engineer & Analyst |ETL Talend& Power BI
Salaire / Taux journalier
Paris, France
Mobilité : Marseille, Lyon, ...
Freelance
Peut venir sur site
Expertises
Langues
À propos
Introduction
Lead Data Engineer/Analyst with over 8 years of experience in designing and industrializing ETL/ELT pipelines across Cloud (Azure, DMZR – IBM) and on-premise environments. Strong expertise in ETL/ELT, Talend, SQL, Python, and Power BI for decision-making and analytics. Responsible for data quality, governance, and production deployments. Proven experience in data project management, technical team leadership, and close collaboration with business stakeholders.
Expérience de travail
BNP Paribas
oct. 2021 - Présent
5 ans 1 mois
Paris, France
Tech Lead BI | ETL Talend & Power BI
août 2023 - Présent
3 ans 3 mois
Paris, France
• Technical leadership and coordination of a team of 9 ETL Talend developers. • Definition and implementation of development standards and data engineering best practices. • Leadership of the ETL Talend DI/DP/DC platform migration from version 7.3 to version 8.0. • Run management: monitoring via TAC, incident management, and SLA tracking. • Facilitation of knowledge-sharing workshops and delivery of internal training sessions. • Implementation of data quality indicators and centralized technical documentation. • Primary point of contact for business, IT, DBA, and operations teams regarding data platform activities. • Design and industrialization of Dynamics 365 data integration pipelines on Azure using Talend. •Translate business needs into functional and technical specifications usable by business and data teams •Work closely with business stakeholders to define requirements and key performance indicators (KPIs) •Connect to data sources and prepare data using Power BI Desktop •Design relational and semantic data models (optimized datasets, DAX) •Develop interactive dashboards with KPIs, dynamic visualizations and business-oriented storytelling •Manage datasets, schedule refreshes and monitor data reliability •Implement Row-Level Security (RLS) to secure data access based on user profiles
Data Analyst
oct. 2021 - juil. 2023
1 an 10 mois
Paris, France
•Design and maintenance of Power BI reports to monitor IBM Cloud DMZR consumption, including detailed analysis by IaaS and PaaS services Relational and semantic data modeling (optimized datasets, DAX measures and calculations) •Publishing and sharing dashboards through Power BI Service, including workspace management and release lifecycle management Dataset management, scheduling of data refresh, and monitoring of data reliability •Implementation of Row-Level Security (RLS) to ensure secure data access based on user roles and profiles •Ensuring the quality, consistency, and reliability of KPIs Environnement : TalendDI, Power BI Desktop, Power BI Service, Oracle,SQL Server, Git, Postgre,nexus Méthodes: Agile (Scrum,Kanban
BI Consultant | Data Analyst
AXA
mai 2020 - sept. 2021
1 an 5 mois
Paris, France
• Creation of analytical tables and views to support reporting and business analysis. • Connection to multiple data sources (Excel, SQL Server) and data preparation using Power Query. • Data model design and development of measures using DAX. • Design of interactive Power BI dashboards with KPIs, dynamic visualizations, and business-oriented storytelling. • Implementation of automated refresh, publication to Power BI Service, and management of access control and Row-Level Security (RLS).
BI Consultant | Data Analyst
AGEFOS PME
avr. 2019 - mars 2020
1 an
Paris, France
*Analysis and update of detailed functional specifications (SFD) *Design and development of Talend data integration flows (Salesforce → landing/staging → business layers) *Implementation of a staging area and business tables in Snowflake (data modeling, DDL, data structuring) *Data loading into Snowflake using an ELT approach: ingestion with Talend, SQL-based transformations in Snowflake *Testing and validation of REST APIs / endpoints, including error handling and process reusability *Insert and update operations in Salesforce *Use of Git for version control *Optimization of Talend jobs (performance, reliability, maintainability) *Execution of performance and load testing *Support and coordination for production deployment
Data Analytics Project Lead – Decision Support
Ministry of Ecological and Inclusive Transition
sept. 2017 - mars 2019
1 an 7 mois
Paris, France
-Extracted and analyzed territorial data to support strategic decision-making -Facilitated workshops and stakeholder meetings to encourage co-construction and collaboration -Drafted clear, structured deliverables tailored to both technical and institutional audiences -Designed interactive and insightful dashboards using Power BI -Contributed to data modeling and the development of relevant business indicators -Engaged stakeholders to ensure collective participation and effective project dynamics
Research Analyst – Data-Driven Decision Support
AgroParisTech
févr. 2017 - août 2017
7 mois
Paris, France
• Analysis and structuring of multi-source datasets (statistical data, geospatial data, field surveys). • Delivery of a cross-functional diagnostic to support strategic decision-making. Contribution to the design of a strategic pre-project based on data analysis and stakeholder needs. • Collection of business requirements through interviews with institutional and operational stakeholders. • Facilitation of collaborative workshops and presentation of insights to decision-makers.
Formation
CY Cergy Paris Université
Diploma, Data Analyst & Machine learning
2024 - 2025
1 an 1 mois
AgroParisTech
Master 2 (M2)
Résultat : Master’s Degree in Project Management – ACTERRA
Licences et certifications
Associé Analyste de Données Certifié Microsoft : Power BI
Délivré le : janv. 2026
Project Management: The Basics for Success
Délivré le : déc. 2025
Professional Scrum Master I (PSM I)
Délivré le : nov. 2024
Talend Data Integration Certified Developer
Délivré le : mars 2023
Talend Data Integration Certification Preparation training
Délivré le : janv. 2023
TOEIC 735
Délivré le : janv. 2019
Portfolio
Manager / Lead Data
Migration Talend 7.3 vers Talend 8.0 – Modernisation de la chaîne Data
