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Laurent C.LC

Laurent C.

Decision Support Data Architect · Talend Expert

€611/day
Lyon, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Laurent

Are your Talend processes becoming unreadable? Worried about a migration or modernization due to a lack of documentation and visibility on dependencies? This is exactly what I unlock.

Data Consultant & Architect, I support large corporations and SMEs — from design to implementation — in structuring and exploiting their decision-making assets, with robust architectures aligned with business objectives. A background that includes managing decision-making teams, serving both technical and organizational vision.

My advantage: a technical stack I developed, dedicated to auditing, data lineage, and mapping Talend projects. It makes complex processes readable, modelable, and manageable: a clear view of dependencies, transformations, and job quality, with structured exports (e.g., DataHub).

My services:
· Audit, design, and deployment of BI architectures
· Management of decision-making projects and coordination of technical and functional teams
· ETL development, workflow automation, and optimization of existing systems
· Platform installation and configuration
· Technical support and team training

Modeling: Data Vault 2.0, Kimball, Merise
Tools: Talend, DBT, SAP Data Services, SAP BO
Environments: PostgreSQL, Snowflake, Oracle, Salesforce, SAP, Workday

They trust me: First-Stop Ayme, Médecins Sans Frontières, Dimotrans Group, Vicat, Eurofins Biomnis, Keyrus, EM Lyon, Kuehne+Nagel, Radiall, and many others.

Are you managing or involved in complex Talend projects, or looking to regain control of your data assets? Let's talk — let's structure your data and create tangible value.

#DataStrategy #BusinessIntelligence #ETL #DataWarehouse #DataVault #Talend #DBT #DataLineage #DataManagement
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Lyon (up to 50km), Lyon (up to 100km)

Experience

  • DIMOTRANS
    Data Consultant
    TRANSPORTATION
    March 2023 - February 2026 (2 years and 11 months)
    Lyon, France
    Context: A major French player in transport and logistics (~2,200 employees, €663M revenue 2024). Stabilization, support, and upskilling of the internal Data team over 3 years.

    Stack: Talend Cloud (DI + ESB/Routes/API), AWS, MySQL, PostgreSQL, Esker (PDP), XML, REST APIs

    Mission structure:
    • Talend Cloud Training (03/2023) — 2 differentiated courses (Data team and Dev team)
    • Support and reinforcement of the Data team (10/2023 – 02/2025) — contribution to successive Talend migrations v6→v7→v8, development/maintenance/optimization of decision-making flows, integration of new companies (external growth)
    • Data Security (10/2025 – 12/2025) — incoming/outgoing REST APIs for third-party management and reference data retrieval
    • Tax dematerialization (12/2025 – 02/2026) — REST APIs for invoice exchange historization (Approved Esker Platform ↔ IS), exchange traceability and identifier management, XML exchange, legal compliance
    • Volume: ~100 Talend Cloud jobs developed/maintained/optimized · ~12 APIs in production · Data team up to 4 people
    Proprietary tool LtCi-Lineage used: identification of sources/targets, measurement of IS dependencies, estimation of impacted volumes

    Results:
    ~100 jobs delivered/maintained · ~12 APIs in production · Talend v6→v8 migrations successfully completed · tax dematerialization compliance · 3 years of repeated commitments over 4 distinct missions.
    Talend Platform Administration Talend ETL Talend ESB Talend API Data Modeling
  • FIRST STOP AYME
    Data Consultant
    AUTOMOBILE
    January 2022 - May 2026 (4 years and 4 months)
    Lyon, France
    Context: A subsidiary of the Bridgestone group, born from the merger in 10/2020 of the distributors Métifiot (First Stop) and Ayme & Fils. Network of ~500 service centers in France and the Benelux. LtCi's commitment to the post-merger dynamic: Data harmonization, platform modernization, team upskilling.
    Several expertise and support missions during the period

    Stack: Talend Cloud v8 (DI), Talend ESB (POC), MySQL → MS SQL Server, FTP → SFTP, Linux, ELO (DMS v10 → v23)

    Volume:
    4 Talend projects, +400 jobs impacted by the various migrations · team: Laurent + 1 junior developer managed

    Structuring projects:
    • Implementation of the Talend Cloud v8 platform (installation, configuration, deployment)
    • Talend ESB solution POC (installation/configuration)
    • Definition and implementation of Talend best practices
    • Migration Talend v7 → v8 Cloud for over 400 jobs / 4 projects
    • Switching databases from MySQL to MS SQL Server
    • Identification of job dependencies on FTP servers (to be decommissioned) and conversion of Linux mount points to SFTP
    • Management of new job development (including internal migration of the ELO DMS tool from v10 to v23)
    • Management and execution of retro-documentation for the most critical jobs
    Proprietary tool LtCi-Lineage: formal use at its best level — significant gain in impact analysis phase (duration + reliability) over 400+ jobs

    Results:
    Talend Cloud v8 platform in production · v7→v8 migration completed · MySQL → MS SQL Server switch effective · FTP servers decommissioned · new jobs running · retro-documentation produced · junior developer upskilled · 4+ years confirming client loyalty.
    Talend Platform Administration technical audit
  • LtCi Consulting
    Consultant Data
    DIGITAL AND IT
    January 2024 - March 2026 (2 years and 2 months)
    Lyon, France
    Développement pour mon activité d'une stack technique dédiée à l’audit, pour répondre à un besoin récurrent des projets data : comprendre rapidement et exhaustivement les dépendances entre les traitements Talend et les systèmes d'information de l'entreprise (bases de données, fichiers, serveurs, FTP, applications source et cible).
    L'outil extrait automatiquement les informations de paramétrage des traitements Talend, les centralise dans une base de données structurée (PostgreSQL, modélisation Data Vault) et expose le détail jusqu'au niveau du composant. Il permet ainsi la production de rapports techniques, le requêtage ad-hoc et la génération de cartographies complètes des flux. Une intégration de capacités LLM est actuellement à l'étude pour enrichir les analyses sémantiques.
    Cas d'usage typiques :
    • Migrations de projets Talend (changement de version, refonte d'architecture, migration cloud) : dénombrement des traitements, identification des composants dépréciés, estimation fiabilisée de la charge.
    • Analyses d'impact sur évolutions des systèmes amont/aval : cartographie des tables, bases, fichiers et serveurs utilisés en entrée/sortie.
    • Audits de conformité : contrôle du respect des normes de développement et bonnes pratiques internes.
    Bénéfices mesurés sur les missions clients (Eurofins-Biomnis, Dimotrans, First Stop Ayme) :
    • Sécurisation et fiabilisation des estimations de charge en phase d'avant-vente ou de cadrage projet.
    • Gain de temps significatif sur les diagnostics et analyses d'impact, particulièrement sur les périmètres comportant un grand nombre de traitements.
    • Accélération estimée à ~80 % sur les phases de découverte (identification de l'usage des composants, bases de données et serveurs) par rapport à une recherche manuelle classique.

    Cet outil est un atout différenciant lorsqu'il s'agit de cadrer, sécuriser ou accélérer un projet de migration, d'audit ou de modernisation Talend.

    Talend ETL DBT PostgreSQL Programmation Python Data Vault

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Education

  • Miage
    Université Claude Bernard - Lyon 1
    1992

Certifications

  • Talend Data Integration v6 Certified Administrator
    Talend Publisher
    2018
    Talend Platform Administration
  • Talend Data Integration For Developer
    Talend Publisher
    2017
    Talend Development

Skill set

Categories