Mid Java Developer

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 are now looking for a Mid Platform Developer (Backend) to work in new challenging outsourced projects.

Responsibilities:

• Implement coordination logic between services: which service is called, when, and how data flows between them

• Build integration and orchestration flows primarily using Spring Integration

• Implement cross-cutting concerns (logging, security, access control) using AOP, per defined architecture standards

• Develop and maintain persistence logic using JPA/JDBC

• Containerize services using Docker

• Write, test, and maintain code in a central git repository using standard IDE tooling (VSCode or similar)

• Participate in code reviews and follow architecture guidelines set by the Platform Architect

• Collaborate with distributed team members across the project

Requirements

• Bachelor’s degree in Information Technology, Computer Science, Computer Engineering or any related field.
• At least 3 years of hands-on Java and Spring experience
• Experience comfortable with IDE tooling (VSCode or similar) against a central git repository
• Experience in Aspect-Oriented Programming (AOP)
• Experience in JPA, JDBC and Containers (Docker or similar)
• Experience working with distributed teams
• Full professional English communication

Nice to have:

• Reactive application design
• Experience in a devops-automated environment
• Kubernetes or OpenShift
• Cloud platforms (Azure or AWS)
• Kafka, Redis, RDBMS, or rule engines (e.g. Drools)
• Asynchronous messaging / long-running workflow patterns
• Application security concepts, Entra ID, JWT

Benefits

• An attractive salary package

• Private health insurance plan

• Career development and growth opportunities

• Continuous training via personalized seminars

• An amazing private & open-office workspace in Athens #LI_Hybrid
• Stable and enjoyable working environment