Java Back-End Developer (Senior)

Arbe-it; Lisboa; Híbrido; EUR 60.000 - 85.000; Jornada completa

Descripción de la vacante

Arbe-it is seeking a Senior Java Back-End Developer to lead the design and development of complex microservices for a Unified Commerce project. You will drive architectural decisions, mentor engineers and promote secure development practices.

Based in Portugal, Lisbon-hybrid with three days a week in the office, you will collaborate with product owners and architects, work on IAM initiatives with Keycloak and Okta, and improve performance and code quality.

Formación

• 8+ years of professional software development experience.
• Strong expertise in Java and experience with React.
• Solid knowledge of microservices architecture, IAM concepts and secure development practices.
• Hands-on experience with Keycloak, Okta and OIDC.
• Proven ability to lead technical discussions, support engineering teams and drive code quality.
• English and Portuguese proficiency at C1 level.
• Candidates must currently reside in Portugal.

Responsabilidades

• Design and develop complex Java microservices across Unified Commerce products.
• Define and promote architectural standards, coding best practices and secure development practices.
• Lead Identity and Access Management (IAM) initiatives involving Keycloak, Okta federation and OIDC flows.
• Collaborate with client Product Owners and Architects, leading technical discussions and representing the engineering team.
• Identify and resolve performance, scalability and security challenges.
• Drive code reviews and quality standards, promoting tools such as SonarQube and Snyk.
• Mentor Junior and Confirmed-level engineers.
• Maintain technical documentation, Architecture Decision Records (ADRs) and runbooks.

Conocimientos

Java

React

Microservices

IAM

Keycloak

Okta

OIDC

Leadership

English (C1)

Portuguese (C1)

Portugal residency

Descripción del empleo

We are looking for a Senior Java Back-End Developer to join a Unified Commerce project, leading the development of complex microservices, contributing to architectural decisions, and driving best practices across engineering teams.

What you'll be doing:

• Design and develop complex Java microservices across Unified Commerce products.
• Define and promote architectural standards, coding best practices and secure development practices.
• Lead Identity and Access Management (IAM) initiatives involving Keycloak, Okta federation and OIDC flows.
• Collaborate with client Product Owners and Architects, leading technical discussions and representing the engineering team.
• Identify and resolve performance, scalability and security challenges.
• Drive code reviews and quality standards, promoting tools such as SonarQube and Snyk.
• Mentor Junior and Confirmed-level engineers.
• Maintain technical documentation, Architecture Decision Records (ADRs) and runbooks.

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

Requirements

• 8+ years of professional experience in software development.
• Strong expertise in Java and experience with React.
• Solid knowledge of microservices architecture, IAM concepts and secure development practices.
• Hands-on experience with Keycloak, Okta and OIDC.
• Proven ability to lead technical discussions, support engineering teams and drive code quality.
• English and Portuguese proficiency at C1 level.
• Candidates must currently reside in Portugal.