At Fujitsu, our purpose is to make the world more sustainable by building trust in society through innovation. Founded in Japan in 1935, Fujitsu has been a pioneer in technology and innovation for decades. Today, as a world-leading digital transformation partner, we are committed to transforming business and society in the digital age.

With approximately 130,000 employees across over 50 countries, Fujitsu offers a broad range of products, services, and solutions. We collaborate with our customers to co-create solutions that drive enterprise-wide digitalization while actively working to address social issues and contribute to the United Nations Sustainable Development Goals (SDGs).

My mission : 

As a Senior Backend Java Engineer, your mission will be to design, implement and maintain robust backend services within a modern microservices architecture, while ensuring high quality, security and compliance with architectural standards.

• Designing and implementing RESTful microservices using Java (LTS) and Quarkus, in line with Twelve‑Factor App principles.

• Developing secure, scalable and resilient backend services handling complex business processes (registrations, VAT declarations, validations, workflows, batch processing, notifications and asynchronous treatments).

• Implementing backend components strictly based on functional specifications provided by business analysts (APIs, data models, business rules, validations and RFC 9457 error cases), while ensuring technical consistency and robustness.

• Collaborating closely with the internal architect to ensure full alignment with defined architectural guidelines, transversal standards (logging, auditing, error handling, security) and the progressive application refactoring roadmap.

• Building and maintaining inter‑system integrations, including internal APIs and external systems (e.g. SAP, MyGuichet), notably through SOAP service consumption and asynchronous messaging.

• Delivering high‑quality, production‑ready code by applying best practices, contributing actively to code reviews, and ensuring strong unit and integration test coverage.

Technical Skills

• Strong expertise in backend development with Java (17+) and Quarkus, including REST APIs (JAX‑RS, RESTEasy), OpenAPI 3, JSON‑B/JSON‑P and messaging systems such as RabbitMQ.

• Solid experience with microservices architecture, containerization (Docker) and Kubernetes/OpenShift environments, including configuration, monitoring, logging (Splunk) and CI/CD pipelines.

• Proven ability to work with complex data environments, including PostgreSQL and legacy DB2 z/OS, as well as integrating external systems via SOAP, messaging and asynchronous flows.

   

Soft Skills

• Strong analytical mindset with the ability to quickly understand complex business domains and translate requirements into clean, maintainable backend solutions.

• Clear communication and effective collaboration with architects, business analysts, tech leads and cross‑functional teams in a demanding technical environment.

• High level of rigor, autonomy and reliability, with the ability to adapt to an evolving context combining legacy systems and modern microservices.