Senior Java Engineer with OMS

We're looking for a Senior Java Developer to join our team in Lisbon, Portugal, in a hybrid working mode. You will be part of a dynamic Client & Market team, working on innovative solutions in the Omni Retail space. You will contribute to the design, development and optimization of backend solutions that support our luxury Maisons across e-commerce and omnichannel retail platforms.

You’ll play a key role in building scalable, high-performance systems that deliver seamless customer experiences across digital and physical touchpoints.

Responsibilities

Analyze business and technical requirements to design and develop robust backend solutions supporting omni-channel retail and order management processes Develop, test, debug and deploy Java-based microservices ensuring scalability, reliability and performance Design and implement integrations with Order Management Systems and retail platforms supporting key flows such as order orchestration, inventory visibility, fulfilment, returns and payment flows Design, develop and maintain Java-based microservices ensuring seamless integration with systems involved in order management, fulfilment and retail operations Troubleshoot and resolve software defects, integration issues and performance bottlenecks Collaborate with the Support team to investigate and resolve production incidents related to omni-retail and order management services Work with the DevOps team to implement and improve CI/CD pipelines, automation and deployment processes Requirements 5+ years of experience as a Java Software Engineer with strong expertise in Java 21 and the Spring ecosystem (Spring Boot, Spring Data JPA, Hibernate, Spring Cloud) Proven experience developing microservices-based solutions using event-driven architecture and API-first principles Experience working with Order Management Systems (OMS), Fluent Commerce supporting order orchestration and omni-retail processes Strong experience designing and implementing RESTful APIs (OpenAPI/Swagger) and working with JSON, XML, HTTP, GraphQL Experience building omni-retail and e-commerce solutions including order lifecycle, inventory visibility, fulfilment, returns and payment flows Proficiency with databases such as MySQL and MongoDB Hands-on experience with containerized and cloud-native environments including Docker, Kubernetes and CI/CD pipelines (GitLab) Experience working with event messaging systems and integration patterns (e.

g., AWS SQS, Solace, Pub/Sub architectures) Familiarity with security best practices including OAuth2, OIDC and IAM solutions such as Keycloak and Okta Experience with modern development and testing tooling including IntelliJ, Sonar. Qube, Datadog, Insomnia and the Atlassian suite (Jira, Confluence)