Senior Full Stack Java Engineers (Java & React)

emagine

📍 lisboa, lisboa, Portugal

Full-time Other-General Posted February 26, 2026

Job Description

We are seeking experienced Full Stack Developers to join a high-impact project within the global financial services sector. This role is designed for engineers who thrive on solving complex backend challenges, optimizing high-performance systems, and delivering seamless user interfaces.


Technical Requirements

  • Experience: 5+ years of professional Full Stack development.
  • Backend: Strong proficiency in Java and Spring Boot , with expertise in designing RESTful APIs .
  • Frontend: Solid experience with React .
  • Cloud & Data: Hands-on expertise with AWS and both No-SQL/Relational Databases .
  • Advanced Engineering: We are looking for specialists with proven experience in:
  • Asynchronous processing and background threads.
  • Concurrency handling and performance optimization.
  • Identifying bottlenecks and optimiz...