Vadym Filipov

- Developed E-Commerce platform for sales, delivery and customer support management. - Integrated E-Commerce platform with web services provided by client and delivery companies using: SOAP, REST. - Architected and developed CMS REST API and integrated it with otomoto.pl. (https://od-reki.volkswagen.pl) - Integrated Redmine with chat bot using RabbitMQ for SLA notifications delivery. - Prepared production releases and deployment. - Provided lectures about Elixir programming language. - Code reviews.

- Developed and maintained a high-load WebSocket server for real-time chat with Elixir. - Migrated message storage layer from Redis to ETS. - Optimized user activity tracking module to decrease memory consumption. - Developed and maintained a world-wide used CRM system (https://sugester.pl). - Developed and maintained an invoice management system (https://fakturownia.pl). - Migrated front-end solutions from JQuery to Vue.js.

- Web applications development with Ruby on Rails. - Architected and developed SDKs for custom embedded devices with C#. - Developed Android applications with Java. - Embedded software development for AVR and STM32 microcontrollers.