Alexander V.

✅ Efficient solutions for your project: 💸 fast in realization, 🛡 reliable, 🚀 expandable 🏆 Upwork certified Back-End developer ⏰ 2000+ hours billed 💪 18 years experience 🥇 I take on a new project only when I have completed the active stage of the previous one My experience: - Backend developer, including high load applications (PHP, Java, Python, NodeJS) - Frontend developer (React, jQuery) - Mobile applications developer (Android, iOS, React Native) CRM / ERP / Business automation: - Development CRM + ERP for real estate agencies. Used in 200 + agencies over the world - Development of ERP system for international manufacturer of mobile accessories Real estate software: - Development of real estate portal - Development of real estate CRM - Mobile application for real estate brokers Forex, Stocks and Crypto currencies: - Robots for Forex on MQL4 and MQL5 - Robots for trading crypto currencies based on neuron network (PHP) - Robots for stocks based on neuron network (Python + Keras + Tensorflow + PHP) Scrapping / parsing: - Development of a platform for parsing real estate objects from sites. 360 000 000 real estate objects in Elasticsearch database with filtering and displaying on map - Olr.com - Amazon.com Mobile applications: - Navigation applications - Applications for business automation - Medical applications using iOS External Accessory framework Bitrix: - Setup and customization - Working with API and webhooks - Development of Bitrix applications - Business Intelligence reports API integrations: - GoogleDataStudio - Gmail - GoogleCalendar - Amazon MWS - eBay - RESO - DropBox - Plentymarkets - Zapier Video transmiting: - Wowza plugin development - Flex / Flash application development