Adding new functionality and maintaining code base at Soundsnap, world largest sound effect library with more than 400 000 sounds and 3 million registered users. - Took part in managing developer virtual machine, cross-platform vagrant box containing local kubernetes cluster (minikube) and various scripts and tools to ease developers work - Took part in creation of a cloud infrastructure using Kubernetes and helm and migrating company main app from dedicated server to the Google Cloud Platform. - Took part in creation of a micro service responsible for mass transcode and import of audio files to S3 which increased the total number of audio files in the company audio library from 280k to 360k in 25 days, processed more than 1.9 TB of data and reduced storage costs drastically. - Implemented AWS Signature algorithm in a custom module which is now used for signing all API requests between company microservices under high load (up to 300 simultaneous connections). - Create a mail sending module and subsystem for splitting load utilising different email delivery API's (Elastic & SendGrid) which is responsible for sending more than 200 000 emails per month. - Created more than 200 automated end-to-end tests and integrated them to the developer environment and to the CD pipeline. Technologies: Kubernetes, Docker, Google Cloud, Google Compute Engine, Google App Engine, S3, Algolia, Vagrant, PostgreSQL, MySQL, Javascript, NodeJs, PHP, Drupal, Go, Python, Bash, HTML, CSS, SAAS, Vue, Git.

Delivered new features and maintained the codebase of one of the biggest ecommerce companies in Slovakia. Created various system for both internal employees use and customers of company websites, including: - Subsystem for integration multiple partners shops into company own internal ecommerce management system (processed more than 10 000 orders over the year under high load without any issues) - Developed an online Kanban board system (Trello like) that connected warehouse and logistic department and decreased average reclamation processing time from 10 days to 3 hours and saved tons of time for both departments, which used to be spent on communications using email and phone. - Took part in developing a database management system which was heavily used by the database department. - Developed multiple payment gateways using third party payment APIs. - Developed module for Google Analytics integration, different feed generation scripts and custom API's, Google Maps API based tools for logistic department - Worked on backend, frontend and server configurations for following websites: novynabytok.sk, hezkynabytek.cz, zondo.ro, zondo.hu, nabytok-mirjan24.sk, mirjan24.cz, top-nabytok24.sk and top-nabytek24.cz - Changed development workflow for team of 3 developers by creating unified development environment using docker containers. - Mentoring and helping newcomers to get on board as quickly and efficiently as possible, doing interviews, code reviews and participating in scrum process. Technologies: Docker, PHP, Javascript, Webpack, SASS, CSS, HTML, React, CouchDb, MySQL, Bash, Git.

- Lead a team of 3 developers, took part in planning development life cycle, creating scope statements and choosing technologies. - Implementing agile methodology. - Perform interviews and give recommendations about hiring. - Successfully refactored massive legacy code base, migrated YII2 web application written in PHP 4.3.9 to PHP 7.0, created documentation, implementing code standards and best practices. - Was responsible for technical development management of multiple projects & products. - Was doing development, debugging and maintaining of company construction design software Vector Smart using Visual Basic, .NET and TurboCAD API - Connecting desktop construction applications to company websites though APIs. - Moved production server in the cloud (DigitalOcean) and automated deployment process. - Developed company product promotion website – www.hawk-igpspunchclock.com. - Took part in developing the company CRM system, creating scope statements, cost calculations, development plan and actually taking part in development (Linux, Nginx, PHP, JavaScript, VueJS, Laravel framework). - Mentoring and helping newcomers to get on board as quickly and efficiently as possible, doing code reviews and participating in scrum processes. Technologies: Visual Basic, .Net, PHP, JavaScript, Bash, Nginx, MySQL, CSS, HTML, Git, YII, Laravel, Wordpress

- Done a various types of tasks: data extraction & processing, penetration testing, web development and different types of automation - Managed to have a 100% positive feedback rate without any negative reviews while working there for more than a year - Manage to reach top 10% web developers by Freelancehunt.com rating. https://freelancehunt.com/freelancer/uhhu_net.html

Supporting local companies with web development expertise. - Development and maintaining a variety of websites. Some examples are: dofa.fund, s-climate-s.com.ua, superkompressionka.com.ua, klmz.rv.ua, pppartner.com.ua - Managed and maintained SaaS product for data extraction from prom.ua, largest online shopping platforms in Ukraine at data.uhhu.net - Done a lot of automated data extraction and processing for different business on a high scale