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Noesis

Java Developer (Freelancer) - Portugal/Full-remote

Noesis
Portugal · Full-time · Mid-Senior
Main Tasks And Responsibilities

Noesis is looking for professionals with the following profile:

  • Design, develop, and maintain high-performance backend solutions using Java 17/21 and Spring Boot 3;
  • Implement advanced REST integrations, secure OAuth,,OIDC protocols, and resilience patterns (Circuit Breaker, Retry, Timeout);
  • Optimize database interactions using advanced JPA/Hibernate, managing complex queries and schema migrations;
  • Conduct robust integration testing using WireMock or MockServer and diagnose complex external integration issues.

Profile

  • Degree in Computer Science or similar;
  • Minimum of 3 years of experience in backend development using Java and Spring Boot ecosystems;
  • Strong expertise in Java 17+, Spring Boot 3, Spring Security, advanced JPA/Hibernate, and SQL Server/Oracle;
  • Solid experience with RESTful APIs, integration testing (JUnit 5, Mockito), and resilience frameworks (Resilience4j);
  • Fluent English skills (written and spoken), with Spanish being highly valued;
  • Full availability to work remotely aligned with the Mexico time zone (CST), preferably under a B2B model.

If you meet these requirements and are interested in joining an audacious and innovative company, please send us your application.

Join us. Let’s innovate together!

All our recruitment and selection processes are based on equal opportunities, valuing the competence and potential of each person and ensuring that no candidate is discriminated on the grounds of gender, ethnicity, sexual orientation, age, religion or physical condition.

  • Job advertisement under Law nr 4 / 2019, of 10th January

Key Skills

Ranked by relevance

spring boot java restful apis junit sql
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Country Guide

Portugal

Startup-friendly with strong expat appeal

Posted
Jul 11, 2026
Type
Full-time
Level
Mid-Senior
Location
Lisboa
Company
Noesis

Industries

Strategic Management Services

Categories

Information Technology

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