Freelancer profile translated to English.
Back to original languageAbout Quentin
🎯 Talend Expert / Data Engineer – Integration, reliability & optimization of ETL flows
Launching a Talend project and want to start on asolid foundationfrom the beginning?
Do you haveslow**, **unstable**, or **difficult-to-maintainTalend flows?
Have your pipelines becomecomplex**, poorly documented, or **criticalto your business?
👉 I intervene to make your data flows reliable, optimize them, and industrialize them.
💥What I do concretely:
🔍Talend & Data Pipeline Flow Audit:
- Complete analysis of existing jobs (performance, architecture, quality)
- Identification of weak points (errors, rejections, dependencies)
- Review of best practices (naming, structuring, logging)
- Concrete recommendations + improvement plan
⚙️ETL Development & Optimization:
- Development of Talend Open Studio / Talend Cloud / Talend Data Integration flows
- Performance optimization (ELT, SQL, parallelization)
- Processing large volumes of data
- Multi-source integration (API, ERP, SQL databases, files)
🏗Industrialization & Reliability:
- Implementation of ETL development standards
- Management of logs, errors, rejections (data quality)
- Monitoring & alerting
- CI/CD (Azure DevOps, Git, automated deployment)
🧑🏫Tech Lead / Referent:
- Structuring data projects
- Team support
- Taking over existing Talend projects
- Documentation & best practices
🚀What I bring:
✅ Reduction in processing times
✅ Decrease in errors and rejections
✅ Maintainable and scalable pipelines
✅ Improved data quality
✅ Clear vision of your data architecture
French
Native or bilingual
English
Fluent
Spanish
Fluent
Can work on-site
Lyon (up to 50km), Paris (up to 50km), Marseille (up to 50km), Toulouse (up to 50km), Nantes (up to 50km)
Experience
- EM LyonTalend DeveloperEDUCATION AND E-LEARNINGJune 2026 - Today (2 months)Lyon, France🔹 Development of inter-application integration flows under Talend ESB🔹 Design and consumption of REST services via Talend ESB components🔹 Implementation of data exchanges between business applications, APIs, and third-party systems🔹 Management of logs, errors, and incidents to improve the reliability and traceability of exchanges🔹 Writing technical documentation and operating procedures
- Feu Vert
On Malt
Talend Tech Lead / Data EngineerAUTOMOBILEJanuary 2025 - Today (1 year and 6 months)Écully, France🔹 Development and maintenance of ETL flows under Talend Data Integration / Talend Cloud🔹 Planning, orchestration, and supervision of 200+ flows processing millions of records🔹 Multi-source data integration (Oracle, Azure, APIs, files, CRM, e-commerce)🔹 Performance optimization of pipelines (ELT, parallelization, SQL tuning)→ Significant reduction in processing times🔹 Implementation of SCD (Slowly Changing Dimensions) for reliable data historization🔹 Management of logs, errors, and rejections (analysis, correction, data reliability)🔹 Implementation of alert and monitoring mechanisms (execution tracking, anomalies, volume)🔹 Continuous improvement of data quality and integration reliability🔹 Coordination of production deployments and management of critical flows🔹 Interaction with business teams for prioritization and data security🔹 Writing technical documentation & operating procedures (Confluence)🔹 Development of steering dashboards (Power BI) - DeciVisionBI ConsultantDIGITAL AND ITMarch 2022 - January 2025 (2 years and 10 months)Lyon, France🔹 Support for 15+ clients on BI and Data projects (Talend, Power BI, SAP BO)🔹 Analysis and framing of business needs in conjunction with IT teams🔹 Design and modeling of Data Warehouses / Data Marts (dimensional modeling)🔹 Development of data integration flows under Talend ETL🔹 Industrialization of pipelines (planning, supervision, error and rejection management)🔹 Administration of the Talend ecosystem (TAC / TMC)🔹 Implementation of CI/CD processes and multi-environment deployments (Azure DevOps)🔹 Guarantee of data quality, traceability, and flow reliability🔹 Design of semantic models and Power BI dashboards (DAX, Power Query)🔹 Development of analytical reporting for business steering🔹 Execution of data / BI POCs on complex use cases🔹 Participation in the modernization and migration of reporting to Power BI🔹 Coordination with business and technical teams (cross-functional / referent role)🔹 Training and user support (Talend, Power BI, SAP BO)🔹 Writing technical & functional documentation🔹 Technology watch on the data & BI ecosystem
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Education
- Master 2 (M2), Computer Science - Machine Learning for Artificial IntelligenceUniversité Lumière Lyon 22021Master 2 (M2), Informatique - Machine Learning for Artificial Intelligence
- Master 1 (M1), Computer ScienceUniversité Lumière Lyon 22020Master 1 (M1), Informatique, Data Science
Certifications
- Talend Data Integration Certified DeveloperQlik2024