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# Data Engineer senior

- **Company:** Groupe SII
- **Location:** Le Mans, France (Remote available)
- **Experience:** Expert
- **Salary:** €38,000.0 - €42,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Amazon S3, Extract Transform Load (ETL), Python (Programming Language), Raw Data, SQL Databases, Snowflake
- **Published:** July 9, 2026
- **Apply:** https://fr.indeed.com/viewjob?jk=654f9c28c087af4d

## About the Role

* Minimum 3 ans d'expérience en Data Engineering dans un environnement cloud ou modern data stack
Compétences techniques :

 * Expertise Matillion : maîtrise avancée des Transformation Jobs, orchestration, connecteurs, best practices ELT.
 * Snowflake : très bonne connaissance des mécaniques de calcul, optimisation de warehouses, gestion du scaling.
 * SQL avancé : capacité à écrire, optimiser et refactoriser des requêtes complexes.
 * Python : capacité à développer des scripts pour automatisations et transformations spécifiques.
 * AWS : bonne compréhension des services clés (S3, EventBridge, Lambda, Step Functions).

## Description

Notre implantation du Mans recrute un Data Engineer Senior F/H, véritable expert Matillion, pour contribuer à la construction, l'évolution et l'industrialisation de notre Data Platform.

Vous jouerez un rôle clé dans la conception et la mise en œuvre de pipelines ELT complexes destinés à alimenter Snowflake et à structurer nos données pour les différents usages de l'entreprise.

Envie d'un nouveau challenge ? Venez rejoindre l'équipe., Transformation & Modélisation

 * Développer et maintenir des jobs Matillion pour transformer les données brutes en modèles prêts pour la restitution.
 * Gérer la transformation de données semi-structurées (JSON, nested structures). Contribuer à la construction de couches Data fiables et documentées (raw staging core
 * analytics).

Ingestion & Connectivité

 * Configurer, optimiser et superviser les connecteurs Matillion (S3, Snowflake API, bases externes…).
 * Mettre en place des pipelines robustes, monitorés et résilients.
 * S'assurer de la qualité et de la continuité de l'ingestion.


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