Senior Java Engineer With Oms

EPAM Systems; Portugal; Presencial; EUR 40 000 - 70 000; Tempo integral

Resumo da oferta

EPAM Systems is seeking a Senior Java Developer to join their team in Lisbon, Portugal. This hybrid role involves designing and optimizing backend solutions for e-commerce and omni-channel retail.

The successful candidate will have a strong background in Java 21, Spring ecosystem, and microservices development, contributing to key integrations and performance tuning across various platforms.

Join a dynamic team focused on innovation in the Omni Retail space, offering excellent opportunities for professional growth.

Qualificações

• 5+ years of experience as a Java Software Engineer.
• Proven experience with microservices and API-first principles.
• Familiarity with security best practices including OAuth2.

Responsabilidades

• Analyze requirements to design backend solutions.
• Develop and deploy Java-based microservices.
• Collaborate with teams to resolve production incidents.

Conhecimentos

Java 21 expertise

Spring ecosystem (Spring Boot, Spring Data JPA)

Microservices development

RESTful APIs design

Event-driven architecture

Database knowledge (MySQL, MongoDB)

Containerized environments (Docker, Kubernetes)

Ferramentas

IntelliJ

SonarQube

GitLab for CI/CD

Descrição da oferta de emprego

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).