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Salary
≈ $52k – $100k per year (Estimated)
Location
Hybrid (France)
Seniority
Staff
Employment
Freelance

First seen by Alion on Sep 23, 2026.

Overview
Company
Impact
Profile match
Visian is a French data and artificial intelligence consulting firm headquartered in the Tour Europlaza at La Défense in Courbevoie, with teams in Paris and Marseille. Founded in 2016 and part of the Neurones group, it has about 350 consultants working on data strategy, data platforms, governance, AI, MLOps, data mesh, cloud and audit for clients in around ten sectors, and also staffs IT projects in Lille, Montpellier, Nice and Aix-en-Provence. It hires Java and Angular developers, data platform and DevOps engineers, AI engineers, IAM consultants, cybersecurity experts, product owners and senior project managers.
Contexte

Accélérer la migration d'un portefeuille d'applications intranet 3-tiers (Java, Kubernetes, Nginx, PostgreSQL) vers le cloud interne DMZR. Les objectifs sont de réduire l'obsolescence, de sécuriser les socles et de tenir les délais. Le projet a un périmètre européen, en lien avec les équipes pays. L'équipe se compose d'1 responsable de patrimoine et de 3 chefs de projet.

Missions
  • Diagnostiquer et prioriser le portefeuille : conformité 3-tiers, dépendances, risques, obsolescence, prérequis DMZR.

  • Définir une trajectoire de migration par application : séquencement, charges, risques, critères de succès, plan de repli.

  • Piloter le delivery : roadmap, jalons, arbitrages, levée des blocages, reporting.

  • Coordonner le partenaire externe de migration : cadrage, challenge des estimations, contrôle des livrables, suivi des délais.

  • Sécuriser l'exécution de bout en bout avec les équipes études, prod, archi, sécu et métiers : environnements, flux, secrets, bases, tests, répétitions de bascule, Go/No Go, MEP.

  • Gérer l'obsolescence : choisir entre remédiation et migration, et garantir des solutions exploitables, supervisées et documentées.

Outils & Environnement
  • Applications intranet 3-tiers : Java, Kubernetes, Nginx, PostgreSQL

  • Cloud interne DMZR

  • CI/CD, automatisation, gestion des secrets, supervision, contrôles de sécurité cloud

  • Pilotage de prestataire externe

Profil recherché

Informations complémentaires
  • Expérience opérationnelle avérée de DMZR impérative : participation directe à plusieurs migrations jusqu'en production. Une connaissance théorique ne suffit pas.

  • Architectures 3-tiers intranet : sécurité, réseau, exploitation, continuité.

  • Kubernetes : namespaces, déploiements, ingress, secrets, haute disponibilité, supervision.

  • Nginx : reverse proxy, routage, TLS, performance, dépannage.

  • PostgreSQL : migration de données, sauvegarde et restauration, performance, bascule.

  • Pilotage d'un prestataire externe : engagements, qualité des livrables, gestion des écarts.

  • Anglais professionnel courant.

  • Nice to have : italien.

  • Soft skills : autonomie et capacité à décider et à escalader, sens de l'urgence sans compromis sur la sécurité, esprit de synthèse, leadership transverse, esprit critique face au fournisseur, rigueur dans le suivi des risques et des décisions.

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