Mellon GroupMellon Group is a leading Greek multinational organization providing specialized fintech and customer experience solutions to major financial institutions and large enterprises. Headquartered in Athens, Greece, the Group employs over 9,000 professionals across 13 countries. It delivers innovative technological solutions and value-added services to organizations with high consumer transaction volumes, including retail banks, telecommunications providers, public utilities, and large private companies.
We are currently seeking a Medium/Senior Software Engineer (Java) to join one of the Group's subsidiaries.
We're looking for an experienced Java engineer to build scalable, high-quality systems and contribute to modern, impactful projects.
Design, develop, and maintain Java-based applications
Work with Spring (Boot, Security, Data) and Hibernate/JPA
Collaborate with cross-functional teams to deliver reliable solutions
Mentor junior developers and promote engineering best practices
Improve system performance, architecture, and code quality
3+ years of software development experience
Strong knowledge of Java, OOP, and Git
Experience with REST APIs, SQL, and relational databases
Familiarity with CI/CD pipelines and Agile methodologies
Exposure to .NET, React, or cloud/microservices architectures
Experience with Docker, Kubernetes, or contact center platforms (e.g. Genesys)
Background in regulated industries (banking, telecom, healthcare)
Modern, collaborative work environment
Continuous learning and career growth opportunities
Competitive salary, benefits, and flexible working options
If you're passionate about building robust software with real business impact, apply now.
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