Java Software Engineer

We're looking for aJava Software Engineer to architect, construct, and maintain scalable backend systems and integrations, with occasional involvement in supporting a contemporary Angular/TypeScript web interface. The role involves advocating for engineering excellence, assisting with delivery planning, and leveraging Microsoft Copilot for AI-assisted development to enhance efficiency and quality, along with contributing foundational AI architecture expertise to help shape AI-driven features and system design choices.

Responsibilities

• Build, design, and maintain Java-based backend services (Java 8+) leveraging Spring Boot/Spring ecosystem and/or Quarkus
• Create and refine RESTful APIs, covering contracts, versioning, documentation, performance optimization, and backward compatibility
• Handle persistence and data access layers through JPA/Hibernate (or Panache) connected to Microsoft SQL Server
• Develop and maintain integration workflows with Apache Camel, covering routing, transformation, retry mechanisms, error handling, and monitoring
• Follow microservices best practices, including defining service boundaries, implementing resiliency patterns, and ensuring operational readiness
• Help maintain CI/CD pipelines and release workflows through Git and Azure DevOps
• Incorporate Microsoft Copilot into regular development work for coding assistance, refactoring, test creation, and documentation, ensuring quality through reviews and automated testing
• Engage in solution design conversations around AI-enabled features, applying practical knowledge of LLM integration fundamentals, grounding techniques, and risk assessment
• Offer occasional support for the Angular/TypeScript UI, handling minor fixes, small enhancements, and debugging API-UI interactions
• Assist with application operations within AWS environments, maintaining basic familiarity with IAM, logging, and monitoring practices
• Diagnose issues in both production and non-production environments, conduct root-cause analysis, and deliver lasting solutions
• Work alongside the team on planning deliverables, estimating effort, tracking progress, and participating actively in Agile ceremonies
• Guide team members through code reviews, pair programming, and knowledge sharing to strengthen engineering practices and consistency

Requirements

• At least 3 years of professional Java development experience, including prior work in a comparable senior engineering position within Banking
• Strong command of Java 8+, encompassing solid OOP principles, design patterns, and clean coding practices
• Deep expertise in Spring Boot, Spring MVC, Spring Data, and/or Quarkus
• Skilled in building RESTful APIs, working with JPA/Hibernate (or Panache), and using Maven
• Solid understanding of SQL and Microsoft SQL Server
• Experience working with Apache Camel
• Comfortable using Git, Azure DevOps, and designing microservices architectures
• Working knowledge of CI/CD pipelines and DevOps methodologies
• Ability to engage with Angular and TypeScript basics, including code review, troubleshooting, and making small modifications
• Experience writing unit tests with JUnit and Mockito
• Excellent analytical, problem-solving, and communication abilities, paired with a proactive mindset and independent work capability
• Strong written and verbal proficiency in both Greek and English

Nice to have

• Exposure to Docker and Kubernetes
• Familiarity with cloud platforms like Azure, AWS, or GCP
• Experience with the Elastic Stack (ELK)