Projects at cosmoONE, Athens, Greece:Remote working on projects using Angular, RxJS, Angular Material, NgRouter and Cypress e2e testing.• Customer Content Management for applications, new implementation,• auctionONE bidding platform, new design implementation (https://youtu.be/1qW-_FouhEg).Projects at Intralot, Athens, Greece:Responsibilities included: application styling according to client specifications and direction from an in-house designer (using Figma), development of ReactJS components using latest version (with hooks), migrating older class components to functional and applying React Hooks where required. Applying accessibility functionality. Applying corrections to the existing code base, as indicated by ESLint.• SportsBet Montana betting application for Montana Lottery, Montana USA. Applications developed for the desktop as well as for kiosks (https://sportsbetmontana.com, https://youtu.be/kpDrHkhQEHQ)• GambetDC betting application for DC Lottery, Washington DC USA Applications developed for the desktop as well as a web application for mobile devices (https://youtu.be/k8ahIaznYc4)

Responsible for the implementation and maintenance of the custom software of the company, working in a small team. This included:- the software for the autonomous on-line Kiosk machines where customers went to recycle their phones,- the server components required for data processing, maintenance and monitoring of the Kiosks - an interactive company website that would provide customers with valuation of their phonesThe software was developed using Javascript: the frontend components with AngularJS, while the server components with NodeJS/Express. Afterwards it was packaged in docker containers and deployed to an Amazon Web Services instance (with elastic network IP) or to the Kiosk locations.Other technologies used included: yarn, git (github.com), HAProxy, Bootstrap, REST API, Redis, socket.io, Google Maps with places and auto-complete and LeafletJS maps

A startup where I was responsible for the front-end implementation following the designer's instructions. Working remotely, I developed the front-end for wikical (open events calendar, https://wikical.com, using Django HTML templates, Sass, Jquery JS). In my personal time I followed (and continue to do so) mobile development courses for Android and iOS and on company time I developed a mobile application for Android and iOS (Swift 3, Xcode 8) that could access the site.I developed the front-end for TimefyMe (time tracking, https://timefyme.com, using Django HTML templates, Bootstrap, ReactJS).In both projects, wikical and TimefyMe, I provided comprehensive tests (using python Selenium) and performed UI, regression, integration, browser and device compatibility tests.I developed a Chrome extension (Javascript) that can introduce TimefyMe activities from Trello cards.I also contribute to the related open source grical project (https://github.com/wikical/grical) where I am improving the front-end style (Bootstrap).

Implemented the front-end (AngularJS). Development was in Ubuntu Linux using AngularJS 1.4.4, Bootstrap 3.3.5, Less CSS, bower, docker containers with docker compose and git.

Contributed in the design and development of multiple projects including:- inventory monitoring and reporting- HR report tool- inventory synchronization from a remote site- on-site project cost monitoring and reporting with data synchronizationusing reporting tools (StyleReport, Crystal Reports for Eclipse), Java (Facelets, Seam, Struts, JBoss, Tomcat) and relation databases (MySQL, Oracle)

Contributed in the development and delivery of software solution as a team member and later as a team leader through design ( with PowerDesigner, UML, Rational Rose, TogetherJ) and implementation with Java (J2EE, JMS, Weblogic application server).

Developed software in C and Unix (for the financial sector) as well as with Java (version 1.1).

Team member for the development of a real-time Tactical Information Management system. Implemented the server software in C and Unix.