iKnowHow Group is a dynamic, international technology company with 24+ years of experience and a team of 300+ talented professionals delivering innovative technology solutions across Energy, Telecommunications, Banking & Financial Services, and the Public Sector. Through its specialized subsidiaries, it brings domain expertise in areas such as Health and Robotics—blending deep industry knowledge with advanced, future-ready technologies. At its core, iKnowHow S.A. delivers end-to-end project development - both internal and client-facing - turning strategy into scalable, real-world solutions. Our portfolio spans Data & AI platforms, enterprise integration, cloud-native applications, and large-scale digital transformation initiatives, enabling leading organizations across the public and private sectors to evolve and grow. We’re looking for curious, driven people who want to create impact through technology and grow with us. We are now looking for a Java Developer to work in new challenging outsourced projects. - Bachelor’s degree in Computer Science, Engineering, or a related field - Minimum 4 years Java backend development experience - Advanced knowledge in Java Technologies (J2EE, Spring, XML Parsing, JDBC, Web Services) - Experience with Relational database (SQL Server) and ORM layers (Hibernate) - Advanced knowledge in writing and consuming SOAP and Rest Web Services - Knowledge of system frameworks like Git and Azure DevOps (ADO) - Good interpersonal skills - Attractive salary package based on experience and qualifications - A modern workspace in Athens, with remote work flexibility - Career development and growth opportunities through a structured Job Grade System - Continuous learning opportunities, including personalized training seminars and access to cutting-edge technologies #LI-Hybrid