Java Software Engineer

We are seeking a Java Software Engineer to design, build, and maintain scalable backend systems and integrations, while occasionally contributing to a modern Angular/TypeScript web interface. This position includes championing engineering best practices, supporting delivery planning efforts, and utilizing Microsoft Copilot for AI-assisted development to boost efficiency and quality. The role also involves providing core AI architecture knowledge to help guide AI-powered features and system design decisions.

Responsibilities

• Design, build, and maintain Java-based backend services (Java 8+) using the Spring Boot/Spring ecosystem and/or Quarkus
• Develop and enhance RESTful APIs, addressing contracts, versioning, documentation, performance tuning, and backward compatibility
• Manage persistence and data access layers using JPA/Hibernate (or Panache) integrated with Microsoft SQL Server
• Build and sustain integration workflows using Apache Camel, including routing, transformation, retry logic, error handling, and monitoring
• Apply microservices best practices such as defining service boundaries, implementing resiliency patterns, and ensuring operational readiness
• Support CI/CD pipelines and release processes using Git and Azure DevOps
• Use Microsoft Copilot in daily development tasks for coding support, refactoring, test generation, and documentation, ensuring quality via reviews and automated testing
• Participate in solution design discussions for AI-enabled features, applying practical understanding of LLM integration basics, grounding methods, and risk evaluation
• Provide occasional support for the Angular/TypeScript UI, including minor fixes, small improvements, and debugging API-UI interactions
• Support application operations within AWS environments, maintaining foundational knowledge of IAM, logging, and monitoring
• Troubleshoot issues across production and non-production environments, perform root-cause analysis, and implement durable fixes
• Collaborate with the team on planning deliverables, estimating work, tracking progress, and actively participating in Agile ceremonies
• Mentor team members through code reviews, pair programming, and knowledge sharing to promote strong, consistent engineering practices

Requirements

• 7+ years of professional Java development experience, including prior experience in a similar senior engineering role within Banking
• Strong proficiency in Java 8+, including solid grasp of OOP principles, design patterns, and clean coding standards
• In-depth experience with Spring Boot, Spring MVC, Spring Data, and/or Quarkus
• Proficient in building RESTful APIs, working with JPA/Hibernate (or Panache), and using Maven
• Strong understanding of SQL and Microsoft SQL Server
• Hands-on experience with Apache Camel
• Proficient with Git, Azure DevOps, and microservices architecture design
• Practical knowledge of CI/CD pipelines and DevOps practices
• Capable of working with Angular and TypeScript fundamentals, including reviewing code, troubleshooting, and making minor changes
• Experience writing unit tests using JUnit and Mockito
• Strong analytical, problem-solving, and communication skills, with a proactive attitude and ability to work independently
• Strong written and spoken skills in both Greek and English

Nice to have

• Experience with Docker and Kubernetes
• Knowledge of cloud platforms such as Azure, AWS, or GCP
• Experience using the Elastic Stack (ELK)

Benefits

For your comfortable work:

• Remote and hybrid work opportunities
• Option to work from our centrally located office in Athens
• Corporate laptop provided
• Private health insurance
• Meal vouchers / restaurant tickets
• My Benefit card (264€/year)
• Monthly public transportation card

For your growth:

• Global and diverse client portfolio, large-scale projects, and trendy technologies
• Diverse multicultural, multi-functional, and multilingual work environment
• Opportunity to contribute to internal and open-source products
• Outstanding career development opportunities with a transparent career path and a roadmap to accelerate your journey
• Possibility to create a Personal Development Plan from the first day in the company
• Numerous opportunities for self-development: hard & soft skills internal training courses, mentoring programs, and unlimited access to LinkedIn Learning courses, external e-Libraries
• Certification opportunities
• Knowledge-sharing with colleagues from EPAM's global tech and non-technical communities
• Language courses