I directed and developed from scratch, the architecture, backend, and dashboard interface for an e-book reading app.Created an API model on swagger for both the dashboard and the mobile app.Designed the database for the app and a REST API on Yii2 utilizing a rest template and JWT tokens.Developed a control interface on React.js utilizing zustand and Bootstrap5.The app is fully integrated with an external online store to enable in-app book purchasing.Created a parser and handler for epub files for future system import and optimization for mobile device displays.Coordinated a team of mobile app developers on every step of the developmental process in JIRA.I develop support and system modernization for a taxi and bus booking app built with PHP, Yii2, MongoDB, socket.io, node.js, jQuery, and OneSignal.Completely rewrote the pathfinding algorithm.Restructured the app's general architecture and database to be more optimized.Updated the system's control panel with bugfixing and new featuresDid technical support for an employee training and testing system developed with PHP, Laravel, MySQL, Vue.js.My work consisted of adding corrections to the frontend, developing missing features to the client's specifications and bugfixing the system until it's ready for shipment.Developed system integration for an SMS mailing list.Refined the architecture and backend of a dating app built with PHP, Yii2, node.js, MySQL, redis, web socket, python, and OneSignal. Upgraded the system from a monolithic application architeture to a cluster with an arbitrary amount of nodes, system load balancing through Nginx and a shared file storage system.Did tehnical support and restructured the backend for a service ordering app built with PHP, Yii2, MySQL, jQuery, and OneSignal.Implemented numerous new features for the bakend and did thorough bugfixing.Created a payment processing system through cardcom and refined the interface and functionality of the admin control panel.

Created an analytics automatization system for dating apps in tandem with the company Together Networks.This system works on PHP, MongoDB, MySQL, Python, CPA, and Revshare.Created a unified analytics system joining sales data from Together Networks with data received from the Google Analytics API and Binom.Created a chat-bot for SMS with PHP, MySQL, and Twilio.Developed and did technical support for a chat-bot built to receive, analize and send SMS messages through Twilio.Developed integration for the Exoclick marketting network and web traffic control system Binom with PHP, MySQL, and Yii2.Created a system to automatically moderate advertizing on Exoclick base on data reeived from Binom.User input emulator built with PHP, MySQL, zennoposter, API, and proxy.Deveoped a user input emulator for data scrapers.Input emulation in this system is done through zennoposter, and the control panel is made through an entirely self-developed and fleshed out API done on PHP.This system operated on dozens of servers and instances and was operated entirely through a single control panel.Developed multiple data scrapers with PHP, Python, Selenium, Scrapy, Grablib, curl-multi, regex, and xpath.I created both single-use scraper algorithms and scraper systems with an inteface to collet data from multiple different sources over a long period of time with many checks, Recaptcha and cloudflare bypasses and other features to client speifications.

Did freelance work for many large and small IT companies on PHP, Yii, python, bash, MySQL, and Codeingiter.