Senior Full-Stack Dev (Java/React) – REST/GraphQL

Rumos Portugal; Lisboa; On-site; EUR 42,000 - 66,000; Full time

Job summary

Rumos Portugal is seeking an experienced software developer in Lisbon to join our IT team. The role requires a bachelor's in IT and at least 4 years of backend development with Java, plus knowledge of React and RESTful APIs.

You'll work in an international environment, with exposure to IAM solutions like Keycloak/Okta, GraphQL, event-driven architectures, AWS SQS, OpenAPI, SonarQube, Snyk, and a strong focus on code quality and security. Fluency in English and collaborative mindset are essential.

Qualifications

• Bachelor's degree in IT or related field.
• 4+ years of professional software development experience.
• Strong Java backend development experience.
• Solid knowledge of React.
• Experience with RESTful APIs and GraphQL.
• Knowledge of IAM solutions (Keycloak, Okta, OIDC, RBAC).
• Knowledge of event-driven architectures and messaging technologies.
• Knowledge of AWS SQS and Solace is a plus.
• Knowledge of OpenAPI, SonarQube, and Snyk is a plus.
• Experience with code review practices and ensuring code quality and security.
• Fluency in English.
• Ability to work independently and with a sense of responsibility.
• Strong communication and teamwork skills.
• Willingness to learn, share knowledge, and contribute to continuous improvement.
• Ability to work in a dynamic and international environment.

Skills

English fluency

Independence

Communication

Teamwork

Willingness to learn

Education

Bachelor's degree in Information Technology or related field

Tools

Java

Backend development

React

RESTful APIs

GraphQL

Keycloak

Okta

OIDC

RBAC

Event-driven architecture

AWS SQS

Solace

OpenAPI

SonarQube

Snyk

Code review

Job description

Rumos Portugal is seeking an experienced software developer in Lisbon to join our IT team. The role requires a bachelor's in IT and at least 4 years of backend development with Java, plus knowledge of React and RESTful APIs.

You'll work in an international environment, with exposure to IAM solutions like Keycloak/Okta, GraphQL, event-driven architectures, AWS SQS, OpenAPI, SonarQube, Snyk, and a strong focus on code quality and security. Fluency in English and collaborative mindset are essential.