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 an experienced Backend Java Developer with strong technical skills and solid working experience to join our internal software team.
Responsibilities:
- Development of demanding tasks of the projects.
- Familiarity with Waterfall implementation methodologies.
- Transform requirements into functionalities.
- Ensure the alignment of the solution with the client's needs and especially with the architecture team.
- Implementation of integrations with other applications and/or developed modules.
- Assist with deployment and configuration management.
Requirements
- 3–5 years of professional Java development experience
- Strong proficiency with Spring Boot, Spring Security, Spring Data and RESTful API design
- Hands-on experience with JPA/Hibernate, databases (PostgreSQL), and Maven
- Familiarity with microservices architecture, service discovery (Eureka), and API gateways
- Solid understanding of JWT authentication, WebSocket (STOMP/SockJS), and asynchronous processing
- Ability to read, debug, and refactor existing codebases with minimal guidance
Benefits
- Career development and growth opportunities.
- An amazing private & open-office workspace in Athens.
- Medical plan and life insurance for you and your family.
- Flexible hybrid working model, working both from the office & remote #LI-Hybrid
- Continuous training & learning opportunities via personalized seminars.
- The opportunity to work in a diverse environment with talented colleagues
Skills Required
- 3-5 years of professional Java development experience
- Strong proficiency with Spring Boot, Spring Security, Spring Data and RESTful API design
- Hands-on experience with JPA/Hibernate, PostgreSQL, and Maven
- Familiarity with microservices architecture, service discovery (Eureka), and API gateways
- Solid understanding of JWT authentication, WebSocket (STOMP/SockJS), and asynchronous processing
- Ability to read, debug, and refactor existing codebases with minimal guidance
- Familiarity with Waterfall implementation methodologies
What We Do
iKnowHow is a Greek technology firm based in Athens and currently employing more than 120 engineers and IT professionals. The company was founded in 2002 and has since grown rapidly holding nowadays a significant market share in Greece, Cyprus and Europe. For almost two decades, the company has been offering a wide range of tailor made software solutions and specialized ICT strategy consulting services as well as building complex enterprise applications with emphasis on Digital Government, Business Automation, Information Security, Digital Transformation, e-Health and Industrial Automation solutions. The past years the company has significantly increased in size and financial yield, reaching almost 120 employees. IKH is organized into three business units: digital government, healthcare, and robotics. Our longstanding partnership with IBM and our knowledge of Open Source technologies has allowed us to complete significant ICT work for local and international organizations. IKH Innovation, our robotics arm, is a world-class team of robotics and software engineers with expertise in mechanical design, embedded control, data-driven intelligence and mobile robots. IKH Innovation designs and builds tailor-made robotic solutions capable of performing in demanding environments. evorad™ is our comprehensive RIS / PACS suite designed to cover a radiology department's needs from the moment patients walks in to the moment they walk out with their examination and their digital diagnostic report in hand. evorad™ has become the premier PACS solution of Greek public hospitals, used not only to process thousands of examinations per day, but also as the main teaching tools in medical schools and university hospitals.
