Java Backend Pro - Hybrid, Lisbon, Upskilling

Connect Digital; Lisboa; Hybrid; EUR 20,000 - 25,000; Full time

Benefits offered by this job

Flexible benefits package

Extra day off on your birthday

Additional day off on 24 or 31 Dec

Job summary

Connect Digital in Lisbon is seeking a Java Backend Developer to build and maintain microservices powering checkout, customer accounts and orders. You will work with senior engineers, apply standards, and participate in a structured upskilling programme to accelerate growth.

This hybrid Lisbon-based role offers exposure to Java, Spring Boot, REST and GraphQL, with a focus on quality and IAM integrations. The position is ideal for a developer looking to grow in a modern, collaborative environment.

Qualifications

• 1+ years of relevant experience.
• Strong experience with Java 8+ and Spring Boot.
• Hands-on experience building and maintaining microservices.
• Solid understanding of RESTful APIs and exposure to GraphQL.
• Experience writing unit and integration tests with JUnit, Mockito and Testcontainers.
• Familiarity with CI/CD pipelines, preferably GitLab.
• Understanding of code quality and security tools such as SonarQube and Snyk.
• Exposure to IAM flows such as Keycloak, Okta or OIDC.
• Experience working in Agile environments.
• Proactive mindset and willingness to continuous learning.

Responsibilities

• Develop and maintain Java microservices for checkout, customer account and order processing products.
• Implement REST and GraphQL APIs following OpenAPI standards.
• Write unit and integration tests and contribute to pipeline quality gates.
• Participate in Agile ceremonies, including sprint planning, daily stand-ups and retrospectives.
• Follow coding standards, security guidelines and GitLab PR processes.
• Support the integration of IAM flows with guidance from senior engineers.
• Take part in a structured upskilling programme.

Skills

Agile mindset

Continuous learning

Team collaboration

Tools

Java 8+

Spring Boot

RESTful APIs

GraphQL

JUnit

Mockito

Testcontainers

GitLab

SonarQube

Snyk

Keycloak

Okta

OIDC

CI/CD

Job description

Connect Digital in Lisbon is seeking a Java Backend Developer to build and maintain microservices powering checkout, customer accounts and orders. You will work with senior engineers, apply standards, and participate in a structured upskilling programme to accelerate growth.

This hybrid Lisbon-based role offers exposure to Java, Spring Boot, REST and GraphQL, with a focus on quality and IAM integrations. The position is ideal for a developer looking to grow in a modern, collaborative environment.