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Cosmote Global Solutions

Back end Engineer

Cosmote Global Solutions
Luxembourg · Contract · Entry
COSMOTE Global Solutions NV is a leading provider of innovative ICT solutions, proudly part of the OTE Group of Companies. We are dedicated to delivering state-of-the-art services that meet the needs of clients in various industries.

We are looking for a talented Back End Engineer to join our growing team. In this pivotal role, you will be responsible for supporting applications through integration and development of server-side logic. Your expertise will play a crucial role in maintaining the functionality and efficiency of our solutions.

Key Responsibilities:

  • Develop, maintain, test and deploy SpringBoot web portals, applications, components and libraries, using Java and Spring framework.
  • Collaborate with team leads, tech leads business analysts, developers and other testers to understand requirements and ensure consistency and coherence of requirements;
  • Deploy and monitor applications on-prem and in cloud containerized environment

Requirements

  • Mandatory Requirements:
  • University Degree at a related field
  • 10+ years of experience
  • Mandatory Experience:
    • Java 17 (preferably 21 or higher)
    • Spring Framework 6.x (or higher) & Spring Boot 3.x (or higher)
    • JPA / Hibernate
    • Web services (REST, SOAP); asynchronous communication using event streaming (Kafka)
    • JUnit/TestNG; Mockito or similar mocking framework
    • DevOps: Maven, Git, CI/CD pipelines (preferable Azure DevOps), containers (Docker), cloud (preferable Azure)
    • Auth/Authz using OIDC/OAuth
    • Would be a big plus:
    • Experience with integration technologies and micro-services, preferably with Apache Camel (but Spring Integration would be a plus)
    • Full stack web development with a JavaScript framework (preferably React)
    • Process/workflow engine experience (eg: Temporal)

Key Skills

Ranked by relevance

cloud spring boot javascript docker devops apache server maven java cicd git
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Country Guide

Luxembourg

High-value international enterprise and fintech hub

Posted
Feb 26, 2026
Type
Contract
Level
Entry
Location
Luxembourg
Company
Cosmote Global Solutions

Industries

IT Services IT Consulting

Categories

Other

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