Java Back-End Developer

Arbe-it; Lisboa; Híbrido; EUR 55 000 - 90 000; Tempo integral

Resumo da oferta

Arbe-it is seeking a Java Back-End Developer to join a Lisbon-based project focusing on Checkout, MyAccount, and ODR Processing. You will design, develop and own features end-to-end in scalable microservices, with API integrations and IAM capabilities.

This role emphasizes architecture discussions, code reviews, and secure deployment practices. You will work in a hybrid setup in Lisbon, requiring 3 days in the office per week and residency in Portugal.

Qualificações

• 4+ years of professional software development experience.
• Strong Java knowledge and React experience.
• Experience building microservices and RESTful or GraphQL APIs.
• Familiarity with IAM concepts and tools such as Keycloak, Okta, OIDC and RBAC.
• Knowledge of event-driven architectures and messaging technologies.
• Commitment to code quality, security and collaborative development.
• English and Portuguese proficiency at C1 level.
• Candidates must reside in Portugal.

Responsabilidades

• Design, develop and maintain scalable Java microservices for Checkout, MyAccount and ODR Processing.
• Manage the full feature lifecycle, from architecture discussions to testing and deployment.
• Integrate IAM solutions using Keycloak and Okta, including OIDC and RBAC.
• Develop and maintain RESTful and GraphQL APIs with OpenAPI docs.
• Implement event-driven integrations using AWS SQS and Solace messaging.
• Promote code quality and security with SonarQube, Snyk and code reviews.
• Mentor junior engineers and share knowledge.
• Contribute to architectural decisions and engineering standards.

Conhecimentos

Java

React

REST APIs

GraphQL APIs

Microservices

IAM concepts

Event-driven architecture

Code quality & security

Mentoring

Ferramentas

Keycloak

Okta

OIDC

RBAC

SQS

Solace

OpenAPI

SonarQube

Snyk

Descrição da oferta de emprego

We are looking for a Java Back-End Developer to join a project focused on Checkout, MyAccount and ODR Processing solutions. You will contribute to the development of scalable microservices, API integrations and IAM capabilities, taking ownership of features throughout the entire development lifecycle.

What you'll be doing:

• Design, develop and maintain scalable Java microservices for Checkout, MyAccount and ODR Processing.
• Manage the full feature lifecycle, from architecture discussions and implementation to testing, code reviews and deployment.
• Integrate and configure IAM solutions using Keycloak and Okta, including OIDC, RBAC and token customization.
• Develop and maintain RESTful and GraphQL APIs, supported by comprehensive OpenAPI documentation.
• Implement event-driven integrations using AWS SQS and Solace messaging.
• Promote code quality and security practices through SonarQube, Snyk and code reviews.
• Support junior engineers through mentoring and knowledge sharing.
• Contribute to architectural decisions and help establish engineering standards.

Work model: Lisbon, Portugal - hybrid, with 3 days per week in the office. Candidates must reside in Portugal.

Requirements

• 4+ years of professional experience in software development.
• Strong knowledge of Java and experience with React.
• Experience developing microservices and RESTful or GraphQL APIs.
• Familiarity with IAM concepts and tools such as Keycloak, Okta, OIDC and RBAC.
• Knowledge of event-driven architectures and messaging technologies.
• Commitment to code quality, security and collaborative development.
• English and Portuguese proficiency at C1 level.
• Candidates must reside in Portugal.