Java Software Engineer

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.

iKnowHow S.A., as the cornerstone of the group, utilizes state-of-the-art technologies and handles end-to-end internal and external project development, from conception to completion. Our portfolio spans Data & AI platforms, enterprise integration, cloud-native applications, and digital transformation initiatives for major organizations in private and public sectors.

We are now looking for a highly motivated Java Software Engineer to join our internal team.

Responsibilities:

• Design, develop, and maintain high-quality software solutions using Java, Spring Boot, and related technologies
• Contribute to the design and implementation of scalable and efficient RESTful APIs
• Apply object-oriented and functional programming principles to deliver clean and maintainable code
• Participate in the full software development lifecycle, including analysis, design, implementation, testing, and deployment
• Develop and optimize database-driven applications, working with relational and/or NoSQL databases and ORM frameworks
• Write and maintain unit and integration tests to ensure code quality and reliability
• Perform code reviews and collaborate with team members to improve code quality and share knowledge
• Follow and promote best practices in clean code, software architecture, and development standards
• Troubleshoot, debug, and resolve technical issues in existing applications
• Collaborate with cross-functional teams (e.g. QA, DevOps, Product Owners) to deliver high-quality solutions on time
• Contribute to continuous improvement of development processes, tools, and practices
• Support application deployment processes and contribute to CI/CD pipelines

Requirements

• University degree on Computer Science or Software Engineering (MSc degree will be considered a plus)
• At least 3 years experience in software development
• Solid background on:
• Object-oriented programming and familiarity with functional programming
• Database theory, proficient in different DBs and ORM frameworks
• Algorithms design and implementation
• Proficient in Java, Spring Boot, Maven, JUnit
• Experience building RESTful APIs
• Experience with unit / integration testing, source code control tools and performing code reviews
• Awareness of “Clean Code” and clean coding practices

Nice to have:

• Familiarity with Spring Cloud event-driven microservices framework
• Business domain knowledge in Health IT Software solutions
• Image Processing related algorithms implementations
• Basic understanding of front-end frameworks such as Angular, React, and Vue
• Knowledge of CI/CD practices (e.g. Jenkins, Teamcity etc.)
• Familiarity working with Cloud Technologies (AWS, Azure, GCP etc.)

Benefits

• An attractive salary package
• Career development and growth opportunities
• An amazing private & open-office workspace in Athens
• Continuous training via personalized seminars
• Stable and enjoyable working environment
• Flexible remote – onsite working model, adjusted to your needs #LI-Hybrid