Application Development at Global Office Supply FZE LLC

Brussels, Flemish Region, Belgium -

Full Time

Start Date

Immediate

Expiry Date

02 Aug, 26

Salary

0.0

Posted On

04 May, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Java 17+, Quarkus, REST APIs, Microservices Architecture, Docker, Kubernetes, OpenShift, RabbitMQ, PostgreSQL, DB2 z/OS, SOAP, OpenAPI 3, JSON-B/JSON-P, Splunk, CI/CD, Twelve-Factor App

Industry

IT Services and IT Consulting

Description

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. MY SKILLS 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.

Responsibilities

Design, implement, and maintain robust backend services and RESTful microservices using Java and Quarkus. Collaborate with architects to ensure alignment with technical standards and integrate internal and external systems.