- Lead a cross-functional team on a joint-venture FinTech platform with a Greek utility provider, delivering high-quality, secure services on time and within scope.
- Own end-to-end feature delivery—from architecture and system design through implementation, testing, and comprehensive technical documentation.
- Set engineering standards and best practices; drive code quality via reviews, pairing, and continuous improvement.
- Mentor and develop engineers through regular 1:1s, coaching, and growth planning; foster a culture of ownership and craftsmanship.
- Partner with Product and stakeholders to translate strategy into executable roadmaps, clarify scope, and manage trade-offs.
- Collaborate with DevOps on Infrastructure as Code (IaC), environment management, and cloud cost optimization.
- Coordinate cross-team dependencies and communicate status, risks, and mitigation plans to leadership.
- Tech stack: .NET 9, Java 21, ASP.NET, Quarkus, Spring Boot, Angular, Next.js, Kafka, MongoDB, Redis, Kubernetes, Azure Services

- Contributed to a joint venture FinTech project with a Greek Utility Provider, focusing on microservices architecture and high-reliability integrations
- Led integrations with third-party vendors and payment services; defined integration standards and patterns used across teams.
- From Dec 2024, led a team of six to ship customer onboarding and payments features end to end.
- Designed and implemented event-driven services and APIs; ensured robust contracts and backward compatibility
- Improved delivery flow with Agile practices; partnered closely with Product and QA to de-risk releases
- Designed and implemented automated regression and performance testing framework using Grafana k6, reducing manual QA time by 40%.
- Tech stack: Java 21, Quarkus, Spring Boot, Next.js, Kafka, MongoDB, Redis, Kubernetes, Azure Services

- Contribute in a new Java Spring Boot application that attributes bonuses to clients based on a configurable rules engine
- Bug fixes and new features in legacy systems
- Support & monitor legacy systems
- Conduct technical investigations
- Actively taking part of code reviews and being responsible for the team's output
- Manage and evolve team related resources in AWS using the Infrastructure as a Code (IaC) pattern
- Facilitate team's operations in CI/CD with pipelines in Jenkins
- Contributed in Java interviews
- Onboarding of newcomers and mentoring of co-workers
- Drive Agile Ceremonies and coordinate closely with the Product owner for priorities and assessing the roadmap completion

- Bug fixes and new features in legacy systems
- Support & monitor legacy systems
- Contributed in a new Java Spring Boot application with Reactive Stream. The application serves requests from the XM Mobile App
- Support, monitor and improvements to the aforementioned Java application

Contribute in the backend software development lifecycle of Payzy, a product owned by OTE Group of Companies. Technology stack: Java microservices managed by Kubernetes
- with Spring boot
- Kafka for asynchronous events
- APM & ELK for logs and search functionality
- Hibernate + MySQL
- MongoDB
- Redis
- Firebase Cloud Messaging
- Openfire for XMPP

Team leader on July 2020

Member of the Hospital Information System development team. Contributed in:
- Frontend resources delivery optimization
- Reducing rendering time in critical pages
Programming Languages/Framerworks used: PHP, Symfony, OracleDB, JavaScript, ReactJS

Member of the R&D team.Took part of the development and the maintenance of the products:
- Cyan, an Application Development Enablement Platform
- Emerald, a visualizations creator
- Alcyone, Yodiwo's backend
- Wisper, gateway's software
- An upload service, that supports auto deletion using either number of downloads quota or due dates
- Facility Management, for optimizing buildings management
Programming Languages/Framerworks used: C#, .NET, .NET Core, Linq2DB (ORM), TeamCity, Selenium, NancyFx (MVC), MongoDB, InfluxDB, MySQL, NoSQL, MQTT, WebSockets, RabbitMQ, TypeScript, JavaScript, WebSockets, React

Took part in workflow creator development.
Programming Languages/Framerworks used: C#, NancyFx, JavaScript

Team Leader of a small group of campers (16 children).
Responsabilities:
- Take care of the team's campers and understand every's member needs.
- Make the children have fun and at the same time obey the rules of the camping.
- Create strong relationships between the members of the team.
- Program the activities of the team's house in collaboration with the campers.
- Always know where the team member are.
- Check the health of the members and inform the supervisor in case of sickness.
- Make sure that the house and the stuff of the members are kept clean.
- Cooperate and collaborate with other team leaders and other executives of the camping.

Team Leader of a small group of campers (18 children).
Responsabilities:
- Take care of the team's campers and understand every's member needs.
- Make the children have fun and at the same time obey the rules of the camping.
- Create strong relationships between the members of the team.
- Program the activities of the team's house in collaboration with the campers.
- Always know where the team member are.
- Check the health of the members and inform the supervisor in case of sickness.
- Make sure that the house and the stuff of the members are kept clean.
- Cooperate and collaborate with other team leaders and other executives of the camping.