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Salary
≈ $46k – $78k per year (Estimated)
Location
In office (Paris)
Seniority
Senior · 7+ years exp

Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Oct 16, 2025. Act Digital scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Act Digital is a technology services company founded in Brazil that provides data and AI, software engineering, cloud, cybersecurity, automation and enterprise platform services, headquartered in São Paulo. Founded in 2011 by Thibaut Charmeil, it bought the French IT consultancy Alter Solutions in 2022 and firms in Spain and Belgium in 2025, and now reports more than 7,000 staff and offices in 13 countries across the Americas and Europe. Its openings, many posted through Alter Solutions, are mostly for Java and React full-stack developers, DevOps and cloud engineers, data engineers, tech leads, project managers and product owners in France, Spain and Portugal.

Act digital est une société de conseil et d’expertise en technologies créée en 2011. Notre vocation est d’accompagner nos clients sur leurs enjeux de transformation numérique. Notre offre s’articule autour des expertises suivantes :

  • Software Delivery
  • Infrastructure & Cloud Computing
  • Agile IT Performance
  • Business Performance

Nous sommes un groupe international implanté dans plus d’une dizaine de pays et comptant 5700 collaborateurs.

Notre succès passant par le développement et l’épanouissement de chaque collaborateur, nous attachons beaucoup d’importance à offrir les meilleures conditions de travail possibles :

  • Télétravail disponible sur une grande partie de nos missions
  • Un environnement de travail en Flex Office disponible pour tous et tout le temps pour favoriser la communication et la collaboration
  • Des communautés d’experts pour partager et diffuser les compétences au sein du groupe
  • Un encadrement projet et un suivi RH de proximité
  • Des formations et certifications proposées annuellement
  • Une valorisation des parcours d’expertise de nos consultants
  • Une ouverture forte sur la mobilité internationale ponctuelle ou de longue durée
  • Des possibilités d’intrapreneuriat

Missions principales

  • Concevoir, développer et maintenir des applications backend en Java (Spring Boot).

  • Définir, implémenter et optimiser des flux d’événements sur Apache Kafka (topics, partitions, performance, sécurité).

  • Participer aux choix d’architecture logicielle et à l’industrialisation des solutions temps réel.

  • Assurer la qualité du code (tests unitaires, intégration continue, revues de code).

  • Contribuer à la mise en production et au suivi des applications (CI/CD, monitoring, support).

  • Collaborer étroitement avec les équipes Produit, Data et Infrastructure.

  • Être force de proposition sur l’évolution des bonnes pratiques techniques et méthodologiques

Compétences techniques recherchées

  • Langages : Java 11+ (Spring / Spring Boot), Kotlin apprécié.

  • Messaging & Streaming : Kafka (topics, consumers/producers, optimisation des performances, monitoring).

  • Bases de données : SQL (PostgreSQL, Oracle), NoSQL (MongoDB, Cassandra).

  • CI/CD & outillage : Git, Maven/Gradle, Jenkins, GitLab CI.

  • Cloud & Conteneurisation : Docker, Kubernetes, connaissance AWS ou GCP appréciée.

  • Tests & qualité : JUnit, Mockito, SonarQube.

  • Architecture : microservices, API REST, event-driven architecture.

Profil recherché

  • Bac+5 en informatique ou équivalent.

  • Expérience confirmée (minimum 7 ans) en développement Java backend.

  • Expertise sur Kafka et les architectures orientées événements.

  • Sens du travail en équipe, rigueur et curiosité technologique.

  • Connaissance du secteur bancaire/financier est un plus.

If you applied for this position the Controller of your personal will be ALTER SOLUTIONS France, with its registered office at 6 avenue du Général de Gaulle 78000 Versailles. The personal data provided by you will be processed for the purpose of the recruitment process and for future recruitment processes.

You have the right to access the content of your data, request their rectification, erasure, restriction of processing, the right to data portability, the right to object to the processing of your data and the right to lodge a complaint to the DPO ([email protected]).

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