Job Description, Responsibilities & Requirements
About the Position
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, SonarQube, Datadog, Insomnia and the Atlassian suite (Jira, Confluence)
We Offer
- Opportunity to work in a dynamic and innovative environment
- Be part of a leading team in the Omni Retail space
- Competitive compensation package
About the Company
EPAM Systems is a leading global software product engineering and development company, with a focus on delivering innovative solutions to clients across various industries. Our team is dedicated to creating cutting-edge technology solutions that drive business success and customer satisfaction.