Java Software Engineer

We're looking for a Java 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)