Senior Java Software Engineer

We are seeking a Senior Java Software Engineer who will design, build, and maintain scalable backend services and integrations, while occasionally providing support to a modern Angular/TypeScript web frontend. This position requires championing engineering best practices, supporting delivery planning efforts, and utilizing AI-assisted engineering tools like Microsoft Copilot to improve efficiency and quality, along with a basic understanding of AI architecture to help shape AI-enabled features and system design choices.

Responsibilities

Architect, build, and sustain backend services in Java (8+) leveraging Spring Boot/Spring ecosystem and/or Quarkus Create and refine RESTful APIs, covering contracts, versioning, documentation, performance, and backward compatibility Handle persistence and data access through JPA/Hibernate (or Panache) paired with Microsoft SQL Server Develop and maintain integration flows via Apache Camel, encompassing routing, transformation, retries, error handling, and monitoring Implement microservices best practices, including defining service boundaries, resiliency patterns, and operational readiness Support CI/CD pipelines and release workflows through Git and Azure DevOps Leverage Microsoft Copilot on a daily basis for coding assistance, refactoring, test creation, and documentation, confirming outcomes via reviews and automated testing Engage in solution design conversations around AI-enabled features, contributing practical understanding of LLM integration fundamentals, grounding principles, and associated risks Deliver occasional frontend support in Angular/TypeScript, covering minor fixes, small enhancements, and debugging of API/UI interactions Assist with application operations within AWS-based environments, maintaining basic familiarity with IAM, logging, and monitoring Diagnose production and non-production issues, conduct root-cause analysis, and deliver lasting solutions Work alongside the team on delivery planning, estimation, and progress monitoring, participating actively in Agile ceremonies Guide team members through code reviews, pair programming, and knowledge transfer to strengthen engineering practices and consistency Requirements Over 5 years of professional Java development background, including prior experience in a comparable senior engineering position within Banking Strong command of Java 8+, with solid OOP capabilities, design pattern knowledge, and clean coding habits Advanced expertise in Spring Boot, Spring MVC, Spring Data and/or Quarkus Proficiency in RESTful APIs, JPA/Hibernate (or Panache), and Maven Solid understanding of SQL and Microsoft SQL Server Hands-on experience with Apache Camel Comfortable with Git, Azure DevOps, and microservices architecture Clear grasp of CI/CD pipelines and DevOps methodologies Capable of working with Angular and TypeScript basics, including code review, debugging, and small-scale implementation Skilled in unit testing with JUnit and Mockito Demonstrates strong analytical, problem-solving, and communication abilities, with a proactive mindset and capacity to work autonomously Fluent in both written and spoken Greek and English Nice to have Exposure to Docker/Kubernetes Understanding of cloud platforms such as Azure, AWS, or GCP Background working with Elastic Stack (ELK)