Senior Java Engineer

Siemens Portugal Tech Hub seeks an experienced Java Developer to solve challenging technical problems, understand complex applications, and turn existing solutions into more maintainable, reliable, and secure software. You will join an international project environment where you can take ownership, improve applications, tackle technical debt, and influence...

Siemens Portugal in Lisbon seeks an experienced Java backend developer to build and modernize critical software solutions across international teams. You will refactor legacy components, optimize performance, and ensure security and quality throughout the application lifecycle. Applicants should have a Bachelor's in a technical field, 4+ years of Java...

Wafx is seeking a Java FullStack Engineer to join our Portugal-based team on a remote-friendly basis. You will work on Java backend with Quarkus and frontend Vue.js/TypeScript, contributing to microservices, quality tests, and DevOps workflows. Requirements include 7+ years Java, 3+ years Quarkus/Vue.js/TypeScript, Docker/OpenShift, CI/CD, and strong...

Empa-T is seeking an experienced Senior Java Developer to join an international Insurance project. You will contribute to a risk exchange platform, translating business needs into robust technical solutions and driving evolution within a cross-functional team. You will work closely with Product Owners and stakeholders in an Agile environment, delivering...

ALTEN Delivery Centre Spain is seeking a Senior Java Backend Developer (Spring Boot) for a 100% remote role in Portugal. You will design, develop, and maintain scalable backend services, implement RESTful APIs, and work with Kafka, OpenShift, and CI/CD tooling in an Agile environment. We expect 5+ years of Java experience, strong SQL/PostgreSQL knowledge,...

Irium Portugal is seeking a skilled Backend Developer to join a challenging tech project in Lisbon. You will build and maintain backend applications using Java 17+, Spring Boot and Hibernate, and you will design APIs while following best practices. You will mentor junior developers, distribute tasks, and monitor deliverables, collaborating closely with...

iTRTech Group in Lisbon is seeking a Senior Java Fullstack Developer to contribute to development and maintenance of IT solutions, delivering maintainable software in line with quality and security standards. The role combines backend Java with Spring Boot and frontend Angular/React in a hybrid Lisbon setup. You will design and implement APIs, collaborate...

Paymentology offers a 100% remote role for engineers shaping global payments. You will design and build backend services, APIs and distributed systems, owning features end-to-end from architecture through testing and deployment. You will mentor associates, practice TDD, and contribute to high-performance, scalable solutions in a globally distributed, agile...

Ytech, based in Lisboa, Portugal, seeks a Java Backend Developer with 4+ years of experience to join an international project delivering digital solutions in Checkout, MyAccount and ODR processing. You will design, build and maintain scalable microservices, REST and GraphQL APIs, and contribute to architecture decisions. The role involves IAM integrations,...