Resume

Experience, skills, education, certifications, and selected professional highlights.

Education

Technical University of Crete

2024

Nov 2024 – Present

Universal Tankers Corporation Ltd.

- Alimos, Greece

• Designed and implemented Spring Boot backend services with strong focus on transactional consistency, data validation, and business rules enforcement
• Migrated legacy business logic from Groovy scripts to Spring Boot, improving maintainability and long-term scalability
• Worked with PostgreSQL, Oracle, and MS SQL Server, handling complex transactional scenarios across multiple database engines
• Implemented payment module workflows including approval processes, invoice and purchase order handling, and bank balances management
• Built Excel file parsing pipelines with frontend display, data editing, and validation logic
• Produced UML activity diagrams and user documentation for each implementation
• Migrated full pages from legacy Groovy to Spring Boot, preserving business rules and transactional integrity
• Delivered Angular frontend using Angular Material with cell-level table validations, nested tables and groups, popup dialogs, virtual scrolling, and complex form handling

Jul 2022 – Nov 2024

Sword Services Greece S.A.

- Kifisia, Greece

• Developed and maintained enterprise backend functionality using Java EE, Spring Boot, SOAP/REST services, and Oracle SQL within large-scale EU systems
• Implemented end-to-end features using Angular, collaborating closely with backend services for validation and business rules enforcement
• Improved system reliability by expanding unit test coverage with JUnit and supporting automated UI testing with Selenium
• Participated in microservices-based architecture work with Kafka, Elasticsearch, Kubernetes during the eu-LISA Interoperability project
• Performed technical analysis for new feature requests, assessing system impact and required documentation updates