
I Know How S.A. (IKH) is a leading provider of custom-built automation solutions and advanced software systems for both public and private sectors. With a focus on innovation, IKH specializes in…

I Know How S.A. (IKH) is a leading provider of custom-built automation solutions and advanced software systems for both public and private sectors. With a focus on innovation, IKH specializes in…
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iKnowHow Group is a leading Software & Robotics Solutions group of companies operating internationally for over 24 years, with 300+ professionals delivering innovative technology solutions across Energy, Telecommunications, Banking & Financial Services, and Public Sector industries. The group is structured into specialized subsidiaries, each focused on distinct technology domains and market verticals.
We are looking for a mid-level Java Developer to work in new challenging outsourced projects.
You will build microservices and APIs on a modern Java stack, deployed primarily on Microsoft Azure with selected workloads on GCP and AWS, working in Agile teams that own services end-to-end — from design through production support.
Responsibilities:
Nice to have:
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
Design, develop, and maintain Java backend services and microservices using Spring Boot and the broader Spring ecosystem (Spring Data, Spring Security, Spring Cloud).
Build and consume RESTful APIs and event-driven services, applying clean architecture and domain-driven design where appropriate.
Implement integrations with downstream systems and external partners using REST, messaging (Azure Service Bus, Kafka, or Pub/Sub), and batch interfaces.
Work with relational and non-relational data stores, writing efficient queries and persistence code with JPA/Hibernate.
Containerise services using Docker and deploy to Azure Kubernetes Service (AKS).
Contribute to CI/CD pipelines (Azure DevOps and/or GitHub Actions), with automated build, test, and deployment steps.
Write comprehensive unit, integration, and contract tests.
Participate in code reviews, design discussions, and architecture sessions; advocate for clean code, performance, and security best practices.
Support production services on a shared rotation, contributing to monitoring, alerting, and incident response.
Collaborate with QA, product, and architecture teams in Agile/Scrum delivery; estimate and break down work effectively across sprints.
Bachelor's degree in Computer Science, Software Engineering, or a related technical field.
3–5 years of professional Java software development experience, including production-grade services in a cloud environment.
Proven experience delivering in Agile/Scrum teams.
Strong Java skills, with practical experience in Spring Boot and the wider Spring ecosystem.
Solid understanding of REST API design, microservices patterns, and distributed systems concepts.
Hands-on experience with Docker and Kubernetes.
Working knowledge of Microsoft Azure services.
Experience with relational databases and JPA/Hibernate.
Familiarity with messaging and streaming platforms.
Comfortable with Git, Maven or Gradle, and CI/CD pipelines.
Awareness of security fundamentals and observability practices (logging, metrics, distributed tracing).