Freelancer profile translated to English.
Back to original languageAbout Virgil
Expert Data Integration & Cloud Analytics
Talend DI | Python | SQL | Google Cloud Platform | BigQuery
With over 10 years of experience in data, I help companies in the design, optimization, and deployment of their data flows.
My expertise covers the entire Data project lifecycle: from business needs analysis to technical implementation, through to operational support.
What I bring to you
A deep understanding of your business challenges to transform your data into a strategic asset.
Robust, scalable, and documented solutions, aligned with your priorities and regulatory constraints.
Fluid collaboration with your teams (IT, BI, business) to ensure project adoption and sustainability.
My offers
1️⃣ Data Integration & Management
Design and development of ETL/ELT pipelines with Talend DI or Pentaho
Performance optimization, job scheduling, and monitoring
Data migration between systems (on-premise ↔️ cloud)
2️⃣ Cloud Modernization & Migration
Implementation or optimization of Google Cloud Platform architectures
Deployment and tuning of BigQuery environments for large-scale analytics
Automation of batch or real-time processing
3️⃣ Business Intelligence
Structuring of Data Warehouses and Datamarts
Advanced SQL modeling and creation of high-performance reporting tables
Support for BI teams to accelerate dashboard production
4️⃣ Quality & Governance
Implementation of quality controls (profiling, validation, monitoring)
Documentation of flows and maintenance best practices
Compliance support (GDPR, data security)
Why work together?
Technical Rigor
Business Vision
Partnership Approach
✅ Key Skills: Talend DI · Python · SQL · GCP · BigQuery
Remote or on-site intervention according to your needs
French
Native or bilingual
English
Fluent
Can work on-site
Lyon (up to 50km), Paris (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km), Toulouse (up to 50km)
Experience
- RandstadTech lead TalendHUMAN RESOURCESOctober 2023 - Today (2 years and 8 months)Saint-Denis, France
Position: Senior Data Engineer Talend Cloud & GCP
Major Objective:Technical leadership for the migration of an Oracle data asset to the Google Cloud Platform (GCP) ecosystem.Achievements:- Talend Cloud Expertise:Design and deployment of complex ETL jobs via Talend Management Console (TMC) to ensure smooth data migration from Oracle to BigQuery.- Architecture & Messaging:Integration of flows via GCP Pub/Sub and storage on Google Cloud Storage, meeting the scalability needs of the current mission.- Automation & CI/CD:Development of pipelines on Dataform and orchestration via Cloud Composer (Airflow), demonstrating mastery of modern orchestration tools.- Specific Data Engineering:Development of Python scripts for migrating unstructured documents (CVs, cover letters) and creation of Dataflow pipelines.- Technical & Quality Referent:Definition of data schemas on BigQuery (datasets and tables) and management of leases/fleets through robust BI processes, including rejection and anomaly management.Technical Environment:Talend Cloud, TMC, Google BigQuery, Google Cloud Storage, Pub/Sub, Cloud Composer (Airflow), Dataflow, Dataform, Python, SQL, Oracle. - SOLVAYData Engineer Talend Cloud / GCPCHEMICALSeptember 2022 - September 2023 (1 year and 1 month)Lyon, France
Position: Data Engineer Talend Cloud & GCP
Major Objective:Modernization of the BI infrastructure by migrating legacy dashboards to a modern cloud environment.Achievements:- Migration Expertise:Technical leadership for migrating data flows from SAP-BW to a BigQuery Data Lake via Talend Cloud.- Analysis & Reverse Engineering:In-depth study of specifications from QlikView dashboard reverse engineering to ensure data continuity under Tableau.- Deliverable Quality:Development of complex Talend ETL jobs in strict compliance with international technical and functional specifications.- Autonomy & Communication:Close collaboration with international teams in English, ensuring adherence to Solvay group standards.Technical Environment:Talend Cloud, TMC, Google BigQuery, Google Cloud Storage, Cloud Shell, MSSQL Server, SAP-BW, English (international context). - OptevenConsultant PentahoBANKING AND INSURANCEOctober 2020 - August 2022 (1 year and 10 months)Villeurbanne, France
Position: Lead ETL Consultant Pentaho | Team Management
Major Objective:Technical leadership of Information System integration and coordination of the ETL development team.**Achievements:- Management & Coordination:Management and leadership of a team of 4 technical collaborators, including task allocation and project progress tracking.- Technical & Quality Referent:Responsible for reviewing and systematically validating ETL processes developed by the team to ensure compliance with standards and flow robustness.- ETL Expertise:Supervision and development of new complex flows as well as optimization of existing processes.- Industrialization:Complete management of the production deployment cycle and orchestration of deployments under a Linux environment.- Training:Mentoring team members in resolving complex technical issues.Technical Environment:Pentaho ETL, PostgreSQL, Jenkins, Linux.
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Education
- Big Data ConsultantESIC2017Programmation Python & R Méthodes de machine learning & Outils du Data Scientist Administration Hadoop (Hortonworks, Cloudera) Base de données NoSQL : Couchbase, Cassandra, MongoDB, Elasticsearch, Logstash & Kibana Méthodes Agiles : Scrum
- Master Optimization of Experimental Protocols with a specialization in Data AnalysisUniversité de Bretagne Occidentale2013Exploration, analyse, fouille de données et extraction d’informations Modélisation prédictive Programmation et traitement de données sous R, Matlab et SAS
Certifications
- Talend Data Integration v7 Certified DeveloperTalend2019
- ETL Processing on Google Cloud Using Dataflow and BigQueryGoogle2025