• Responsible for a team of 10-15 engineers• Weekly meetings with the CEO of the company • Responsible for the project coordination and resource allocation for all projects of the company• Handled the team of engineers through the transition from full on-site to the hybrid mode due to the Covid-19 pandemic• Designed and coordinated a large project for an analytics project for reporting KPIs related to the performance and UX of the entire network of subscribers of a large telco abroad. There was a tight deadline of 3 months to have this project designed, implemented, setup and tested and all of this while navigating through the first months of the Covid-19 era and the remote working.• Main point of contact for the Horizon2020 project 5GSOLUTIONS (https://5gsolutionsproject.eu) were I also acted as a work package leader. 5GSOLUTIONS is about formulating a wide set of innovative, heterogeneous use cases spanning across five vertical industries in a complementary way and providing the technological enablers for facilitating the execution of the field trials over specific ICT-17 5G facilities. Our role within the project was to design and implement a KPI Visualization System for automating the analysis and presentation of the results obtained from ICT-17 facilities and presenting them through an intuitive user-friendly dashboard in graphical form in near real time. I heavily participated in the design of the KPI-VS, it's integration with the 20 use cases and the underlying 5G facilities. As work package leader, I was the main contributor of the deliverables involved in our work package but also in other WPs also.

• Responsible for a team of 10-15 engineers• Weekly meetings with the CEO of the company • Decided to move from PHP to Angular on all projects involving a frontend tool• Handled the transition of the company's analytics product from Spring and JBoss 7 to the Open Service Gateway Initiative (OSGI) specification and Karaf container. Previous modules remained on the Spring framework but new ones were now built based on OSGI and deployed on a customized Karaf container• Continued handling the Horizon2020 project HEARTEN (development, coordination and deliverables)• Designed and participated in the refactoring of the company's messaging platform (from a monolythic JAVA application to an OSGI based project utilizing the Camel Framework) along with it's migration to a new infrastructure and the updating of the various components (MySQL to mariaDB, introduction of HaProxy and Nagios)• Design and setup of a PKI for issuing certificates for a large telco company. The CA software installed and configured was EJBCA (https://www.ejbca.org). This involved the installation and setup of several components apart from EJBCA like HaProxy, MariaDB, MaxScale along with the Galera Cluster for offering clustering services and high availability.• Installed the company's messaging platform to a new telco company abroad

• Continue handling the analytics projects of the company (design and development)• Core engineer of the Horizon2020 project HEARTEN (https://cordis.europa.eu/project/id/643694) in which I also acted as a work package leader. Responsible of the design and implemenation of the mobile application of the ecosystem and of the deliverables AppArt was responsible of or had contributions. • Participation in company interviews for Junior & Senior Software Engineers

Joined App-Art from the first days of it's formation as the one of two software engineers. We have built a Java-based business intelligence highly scalable application that can seamlessly integrate with any application and connect to any data source including but not limited to legacy file transfer such as flat-text ASCII files, XML files and SQL databases (Oracle, MySQL, Postgres). Users can efficiently create their own reports and dashboards by laying out multiple components in a single pass through a wizard based interface.Main Responsibilities / Achievements• Client meetings for the high level design of the company's projects (analytics & messaging platforms for large telco companies)• Designing the low level design documents based on the HLD• Writing code (backend in Java 7 - Spring Framework - and Frontend in PHP (CakePHP framework)).• Deployment setup (OS, Application Server - JBoss 7.11)• Participation in company interviews for Junior & Senior Software Engineers

Heavily involved in the design and implementation of various products and services. The projects I was involved in are:ACLM (ACcess List Management):a solution to manage and deploy Femtocells across a mobile operators network. Lead designer and principal software engineer for the ACLM solution deployed in Vodafone Netherlands (SignaalPlus) and Vodafone Greece (Full Sima).VAS Services:participated in the implementation of VAS Services for Prepaid and Postpaid subscribers such as Balance Enquiry, Credit Transfer, SOS Credit and Ring Back Tone (RBT) purchase for various mobile operators such as AMC Albania, Vodafone Albania,Cosmote Romania and Cosmote Greece.USSD News:heavily involved in the design and implementation of the USSD News platform, a system for delivering news content across plain-text channells such as USSD and SMS. The platform supported full configuration of the news items, such as different pricing, scheduling and lifecycle of news reports and full content management from external partners.Offer Management System:heavily involved in the implementation of the OMS system for AMC Albania.