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Salary
$78k – $95k per year
Location
Hybrid (Paris, France)
Seniority
Staff
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Aug 31, 2026.

Overview
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Wake IT Up is a French specialised recruitment firm for IT and tech profiles, serving software publishers, fintechs and digital companies. Its listings are written for client companies and cover .NET, Java, React, Azure, data and AI engineering and engineering management roles. The firm is headquartered in Paris, France.

Rejoignez notre équipe en tant que Lead Software Engineer Java. Vous serez responsable de l'optimisation du backend ETL, du développement des API, de la migration complexe et de la gestion de la base PostgreSQL. Vous participerez à la mise en place de l'architecture technique et aurez un impact direct sur la roadmap technique. Vous travaillerez avec une stack technologique moderne, y compris Java Spring Boot, PostgreSQL, et des services cloud.

Missions

  • Contribuer à l'optimisation du backend ETL, au développement back-end et aux API, en abordant les problématiques de performance, scalabilité, sécurité et optimisation de la plateforme.
  • Participer à la mise en place de l'architecture technique, en collaborant directement avec les architectes, les équipes Data et DevOps, et en ayant un impact sur la roadmap technique.
  • Participer à la veille technologique et être force de proposition sur les bonnes pratiques à adopter, en utilisant les derniers outils et technologies.

Profil recherché

**Maîtrise de Java et développement backend**

* Expertise approfondie en Java

* multithreading et optimisation des performances JVM

* architecture microservices, les API RESTful

* Maîtrise du SQL, des bases de données relationnelles PostgreSQL et de la modélisation de données

* services cloud (AWS, GCP ou Azure)

* Kafka, RabbitMQ, AMQP

* analyser et optimiser des algorithmes complexes pour la performance

* Solides compétences en résolution de problèmes avec une approche proactive

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