We are looking for a Backend & Integration Java Developer to maintain and evolve a core enterprise application. You will work in a diverse environment, managing integrations with other systems and contributing to the modernization of the platform.

Main Responsibilities

Maintain, debug, and improve existing backend services built mainly with Java (1.7/1.8), Spring Boot and some legacy components (EJB, Swing).
Contribute to building and monitoring reliable integrations using tools such as WebMethods, IBM MQ and SFTP file transfers.
Design and consume REST and Web APIs to connect different functional domains.
Work with Oracle 19c databases on Unix environments, focusing on queries and data-related performance.
Take part in the gradual modernization of the platform, including moving legacy parts towards microservices and containerized environments.
Use AI-assisted development tools (e.g. GitHub Copilot, ChatGPT/Claude) in your daily work to speed up coding and debugging, while keeping a strong focus on code quality and security.
Collaborate with Business Analysts, internal teams and external hosting partners (e.g. DXC) to align on technical specifications and releases.

Télétravail : hybride

Date de prise de fonction
01/09/2026
Durée
2 years
Poste avec management
Non
Niveau d'étude minimum
Bac + 3 / L3
Formation / Spécialisation
- Completed studies in economics or computer science a comparable education (apprenticeship in Banking)
- Good experience with Core Java (1.7/1.8) and maintaining existing codebases.
- Experience with Spring Boot and Hibernate or similar frameworks.
- Exposure to legacy/enterprise Java technologies such as EJB and Swing.
- Experience deploying or running applications on application servers (ideally IBM WebSphere) in Unix/Solaris environments.
- Experience with Oracle databases (writing efficient SQL, working with Unix-hosted databases).
- Experience with enterprise integration and middleware (e.g. WebMethods, IBM MQ, SFTP).
- Experience building and consuming REST APIs.
- Comfortable using Git for version control.
- Interest in modernization topics: newer Java LTS versions (e.g. Java 17+), Docker/Kubernetes, microservices and modern API gateways.
- Familiarity with Unix command line, simple shell scripts and application monitoring is appreciated.
- Experience with AI-Assisted Development (use AI tools to help with code generation, debugging and recurring tasks. Apply good prompt-writing practices and understand the strengths and limits of AI coding assistants. Keep a critical eye on AI-generated code, review it carefully and respect security / confidentiality constraints)
Niveau d'expérience minimum
6 - 10 ans
Outils informatiques
• Solid analytical and troubleshooting abilities, especially in distributed or integrated environments.
• Pragmatic mindset: able to keep production stable while contributing to the roadmap for modernization.
• Clear and open communication, with the ability to work closely with different technical and functional teams and external partners.
Langues
Fluent in English
CACEIS est un établissement bancaire, filiale du groupe Crédit Agricole, spécialisé dans les services financiers aux sociétés de gestion et investisseurs institutionnels.
Présent en Europe, en Amérique du Nord, en Amérique du Sud et en Asie, CACEIS propose une gamme complète de produits et services : exécution, compensation, change, prêt-emprunt de titres, conservation d'actifs, banque dépositaire et administration de fonds, support à la distribution des fonds, solutions de middle-Office et services aux émetteurs.
CACEIS est un consolidateur du marché européen de l'asset servicing et affiche une activité en croissance régulière. Le Groupe détient près de 5 300 milliards d'euros d'actifs en conservation et près de 3 400 milliards d'euros d'encours sous administration (chiffres au 31 décembre 2024).
En agissant chaque jour dans l'intérêt de la société, nous sommes un groupe engagé en faveur des diversités et de l'inclusion et plaçons l'humain au cœur de toutes nos transformations. Tous nos postes sont ouverts aux personnes en situation de handicap.

Backend & Integration Java Developer m/w/d

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