Senior Java Software Engineer

We are seeking aSenior 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)