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Java Developer

Uni Systems

On-site
Luxembourg, Luxembourg
Full-time
Senior
8+ yrs
Salary not listedPosted 47m ago

Real job — pulled straight from Uni Systems’s careers page · Verified October 1, 2026 · No reposts.

Job description

Uni Systems is hiring a Java Developer — a full-time, based in Luxembourg, Luxembourg role. Apply directly on Uni Systems's careers page below.

Java Developer

Location: Luxembourg, Luxembourg, Luxembourg

Department: International BU

Workplace: on_site

Employment Type: full

Description

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a professional Java Developer to join our UniQue Luxembourg team.

What will you be bringing to the team?

  • Migrate and rewrite aGWT (Google Web Toolkit) application to the latest version of Angular, ensuring a smooth transition, performance optimisation, and adherence to best practices.
  • Analyse requirements and work with analysts to clarify functional specifications.
  • Develop technical specifications in line with technical standards and quality requirements.
  • Participate in functional working groups and progress meetings.
  • Develop unit and integration tests, including test suites, plans and programs.
  • Prepare technical and user documentation.
  • Assist with system deployment and configuration.
  • Provide application support and investigate issues, including3rd-level support.
  • Participate in Agile/Scrum activities and collaborate with international and multicultural teams.

Requirements

What do you need to succeed in this position?

  • Bachelor’s degree preferably in Computer Science or Software Engineering and 8+ years of professional experience in software development.
  • Strong experience in Java/J2EE (7/8/11) and enterprise application development.
  • Strong knowledge of JPA and caching mechanisms.
  • Strong knowledge of the Java enterprise stack, including:
  1. Angular
  2. GWT
  3. Spring Boot
  4. Spring MVC
  5. Spring JMS
  • Good knowledge of Oracle 11g/18 and relational databases.
  • Experience with software development lifecycle and methodologies used in large-scale organizations.
  • Knowledge of software design patterns and UML.
  • Experience developing large-scale Web 2.0 applications using J2EE technologies is an advantage.
  • Experience with Agile/Scrum; knowledge of PMBOK or PRINCE2 is an advantage.
  • Strong communication, coordination, analytical and problem-solving skills.
  • Experience in IT projects in the translation field is an advantage.
  • Good knowledge of English and/or French; knowledge of another EU language is an advantage.
  • Experience working with European Institutions is an advantage.

At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at our Diversity, Equality & Inclusion Policy for more information.

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Frequently asked questions

What skills are required for Java Developer at Uni Systems?

The required skills for Java Developer at Uni Systems include: Java, J2EE, Angular, Spring Boot, Oracle, SQL, Agile, Scrum, Git.

What is the seniority level for Java Developer at Uni Systems?

Java Developer at Uni Systems is a Senior level position.

How do I apply for Java Developer at Uni Systems?

You can view the full description and apply for Java Developer at Uni Systems on EchoJobs: https://echojobs.io/job/uni-systems-java-developer-mxxem.