Ihor Tvardyi Email & Phone Number

Canada

Project description: Solution for building and hosting small websites.Tools: PHP, Symfony 3.4, Angular 1, 10, 11. ✓ Introduced a Subscription feature based on Stripe payment gateway. ✓ Improved checkout flow based on Stripe, Spreedly (PCI compliant cardvault) ✓ Developed an inline editor which allows users to edit dynamic pages. ✓ Introduced several complex reports. ✓ Improved security, including OAuth2 flows. ✓ Refactored licensing API. ✓ Committed a migration from Angular 1 to Angular 11. ✓ Implemented Blogging feature. ✓ Developed AWS lambda for resources optimization. ✓ Worked with AWS EC2, S3, RDS, CloudFront, SQS. ✓ Set up automation tests on Codeception. ✓ Improved a referral system.

Project description: Online casinoTools: Symfony 3.4 – 4.2, microservices ✓ Introduced microservice as external interface for building casino systems. It was built on OAuth2 and internal stack of microservices. ✓ Developed functionality for documenting API based on OpenAPI Specification 3.0 and Swagger UI. ✓ Solved complex tasks related to concurrent DB requests. ✓ Provided automation tests (Behat, Unit tests). ✓ Improved pre-calculation for reports that use elastic search engine. ✓ Created tool for creating dataset across microservices. ✓ Improved admin zone. ✓ Worked with asynchronous and synchronous queued messages. ✓ Optimized microservices code, diminished response time.

Project name: BitinterpayProject description: Cryptocurrency exchangerTools: Symfony 2.8, 3.4, 4.2, Twig for Web version & API for mobiles ✓ Developed Single Sign On Service, aimed to provide authentication forother services. ✓ Splitted monolith into many mircoservices. ✓ Developed core for trading to manage orders’ creation, cancelation and closing if appropriate orders intersected. ✓ Accomplished an exchange based on trading orders which allowed to swap crypto and fiat currencies instantly. ✓ Implemented automatic tests for API and Web which allowed to keep the code in proper condition (Behat + Mink + Selenium). ✓ Integrated several APIs to enforce payment methods, crypto nodes RPC, KYC/ALM verification, interaction with partner services. ✓ Developed an alternative rapid exchange based on 3rd party API (backend) + interactive form on Vue.js. ✓ Fixed and improved code related to websocket server and client. ✓ Refactored and improved a lot of code related to orders, balances, payment methods, sending system, console commands etc. ✓ Refactored database structure and optimized MySQL queries. ✓ Improved performance using Redis.

Project description: social network as a digital canvas to capture the richness of your life for future generations to honor and learn fromTools: Symfony 3.4, Angular 6 ✓ Accomplished user profile (backend + frontend) which contained around 20 entities + forms (Personal Details, Education Details, Professional Details etc.). ✓ Created simple entities (Book, Car, Flower and many more) that were used in user profile and provided a searching mechanism which allowed to commit a lookup up for dropdowns (backend + frontend). ✓ Developed Timeline (backend + frontend) which represented all events from profile entities sorted by date. Timeline can be customized by user and can be populated with outstanding world events. ✓ Created messaging and notification systems (backend). ✓ Developed posthumous messaging system which allows to send messages to people on certain event (got married/divorced, got child, reached age and others). ✓ Created Behat automatic tests for developed functionality. ✓ Optimized MySQL queries and database structure. ✓ Created API-documentation for front-end developers. ✓ Revealed issues and problematic code and sorted out them. ✓ Implemented 3rd party bundles such as Google recaptcha, pagination, image uploader and image processing bundles.

Project description: cloud-based application built atop leading practices for perfect end-to-end project and portfolio planning and deliveryTools: Symfony 2.8, Twig✓ Developed daily log for managing daily tasks.✓ Accomplished company timetable. ✓ Developed time logger to enforce time logging with possibility to review and approve certain period.✓ Created interface to view HR resources across company or project.✓ Developed customized dynamic reports with graph representation and possibility to save, edit, remove, share.✓ Accomplished a static approval chain system which aimed to build approval chains with many steps and various condition related to project and approvable entity.✓ Developed financial planning management (possibility to create several scenarios and export functionality).✓ Rearranged tasks and hours system for high loads.✓ Created automatic tests using Selenium, Node.js, Cucumber.

✓ Built and implemented CRM for selling and accounting products, developed analyzing tools, company website. ✓ Programmed additional tools for serving CRM using PHP, MySQL, Javascript, Builder C++, VBS, VBA. ✓ Selected and implemented technical and software solutions. ✓ Created documentation and staff counselling. ✓ Tested and improved CRM. ✓ Installed, deployed, transferred websites. ✓ Administered Linux-based servers.