Volunteering with the studio's game prototype development.

I've developed a rental booking platform and actively maintaining it now.The initial solution was a pure PHP application with old-school HTML / vanilla JavaScript with Internet Explorer 6 comparability. I made the following updates to it.1) Performed the full security check and resolved all the vulnerabilities in the code.2) Integrated jQuery to speed up the front-end updates and new feature development.3) Built up a Symfony-based back-end to handle payments, accounting and administration.4) Moved all the old platform features to the new Symfony back-end one by one.5) Established the whole development, testing and deploying process to eliminate the downtime.6) Took part in developing the new Vue-based front-end performing code-review and developing Vue components for the new features on my own.7) Now working on moving some critical processes to Golang microservices to speed up the user request processing.

I re-writed an old and working ticket booking system based on Oracle PL/SQL and Java to a PHP solution.The platform features included:- event search- sign up / login features- user profile with tickets purchased- choosing places in a venue to book- purchasing and payment provider API integration- a booking queue to handle high loadDifferent parts were re-developed by me from scratch using the MVC pattern and integrated them into the old platform one by one in an incremental development flow.The original platform was complex and had a lot of features to move. Also I was adding new features requested by the company and fixed multiple bugs in the legacy codebase.I worked in a team which included 2 developers and QA specialists.

I worked with college students as well as with high school students.My major disciplines were:- Management- Risk management- Economics history- AccountingAlso I developed and published several books for the topics of Management and Risk Management including;- curriculums- tests- assignments- study plans for remote studentsAlso I performed another related activities:- used different e-learning platforms (Prometheus, MS Exchange)- guided students in their diploma paper researches- worked as a member of examination committeesI developed a custom platform (C# based) for professors to create and use iBook widgets for e-learning solutions.