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Stage - en Architecture Microservices (H/F)

ALTEN • French: C1 • IT Consulting & Digital Transformation • Engineering Services • Java • 6 days ago
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In office (Grenoble)
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Intern
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Internship

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 12, 2026. ALTEN scores B on the Alion truth index.

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ALTEN

ALTEN is a French engineering and technology consultancy founded in 1988 that supplies project engineers to companies developing complex products and systems. Its consultants work inside client organisations across automotive, aerospace, defence, rail, energy, telecommunications, life sciences and finance, covering embedded software, mechanical and electrical design, simulation, testing, certification and information systems. Listed on Euronext Paris and headquartered in Boulogne-Billancourt, the group employs tens of thousands of engineers across more than thirty countries and has grown through a long sequence of acquisitions of specialist engineering firms.
alten.com • HQ: Boulogne-Billancourt, France • IT Consulting & Digital Transformation • Engineering Services • 5000+ employees • Est. 1988

Worldgrid est une entreprise française experte en solutions numériques pour le secteur de l’énergie. Elle intervient sur toute la chaîne de valeur : production, transport, distribution et commercialisation de l’énergie, de l’eau et des déchets. Ses solutions aident les clients à optimiser leur consommation et à digitaliser leurs infrastructures, dans un contexte de transition énergétique. Depuis 2024, Worldgrid fait partie du groupe Alten.

Pourquoi postuler ?

  • Participe à la modernisation des infrastructures Smart Grid avec Metermesh, notre solution de Smart Metering.
  • Projet concret : Migration d’un composant clé vers une architecture microservices moderne.
  • Technologies de pointe : Java, Docker, Kubernetes, OSGI, Apache KARAF.
  • Impact direct sur la robustesse et la scalabilité du système de gestion des compteurs intelligents.
  • Possibilité de CDI dans une équipe experte en solutions énergétiques innovantes.

Tes Missions

  • Migrer le composant du framework OSGI Apache Felix/OpenJDK-1.8-LTS vers Apache KARAF/OpenJDK-21-LTS.
  • Générer le conteneur Docker du composant migré.
  • Mettre en place l’orchestration des conteneurs Docker dans un cluster Kubernetes.
  • Définir des politiques pour garantir la disponibilité du service (redondance, reprise en secours).
  • Tester et valider la solution dans un environnement de production.

Ton Profil

  • Étudiant·e en dernière année (École d’ingénieur ou Master 2) en informatique.
  • Compétences techniques : Java, Docker, OSGI, Kubernetes, Linux.
  • Appétence pour les nouvelles technologies et capacité à monter rapidement en compétences.
  • Autonomie, flexibilité, capacité d’analyse et de synthèse.
  • Aisance orale et écrite pour présenter tes travaux.

Ce que tu gagneras

  • Expérience en architecture microservices, un savoir-faire très recherché.
  • Maîtrise des outils modernes de conteneurisation (Docker, Kubernetes) et d’orchestration.
  • Contribution à un projet stratégique pour les Smart Grids et la transition énergétique.
  • Opportunités professionnelles dans un secteur en pleine croissance (énergie, IoT, cloud).
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