Tech Lead
2018 - PRESENTTourRadar.com- Led back-end development of the search team.
- Produced machine learning models using AWS SageMaker.
- Split existing functionality to a microservice written in Golang that uses Elasticsearch.
- Built event-driven architecture from scratch using the CDC pattern.
- Consulted for teams wanting to create the most efficient architecture for their services.
- Developed a content landing page manager.
- Worked with Terraform to maintain infrastructure.
Technologies: Amazon Web Services (AWS), Terraform, Redis, MySQL, Elasticsearch, Docker, GoLand, Go, jQuery, Laravel, PHPCTO
2016 - 2018MyTravelClub.com- Launched MyTravelClub.com.
- Hired and collaborated with a sales team, designer, and other team members.
- Used Python's scikit-learn for building recommendation and prediction models for hotel and flight prices.
- Created a new platform for travelers to discover and book everything for their next trip.
Technologies: Keras, Redis, MongoDB, MySQL, REST, jQuery, React, JavaScript, Scikit-learn, Python, Deployer, Docker, Debian, Ubuntu, RabbitMQ, Yii 2, PHPCEO and Founder
2015 - 2016Experitus, Inc.- Launched Experitus.com, a marketplace of learn-by-doing-activities (lessons, workshops, and courses).
- Launched Experitus.io and Experitus.com. It has 550 users and 370 companies.
Technologies: SendGrid API, Mandrill API, Gmail API, Google API, Facebook API, PayPal API, Gearman, Stripe API, Salesforce API, TripAdvisor API, Yii 2, Yii, Bootstrap, CSS, HTML, Python, JavaScript, PHPFounder
2014 - 2015Tourista.me- Launched Tourista.me and a back-office with API, Supply.Tourista.Me. It has 1,608 tours in 542 cities guided by 336 people. In addition, It has 1,800 users and 1,000 orders.
- Hired and managed the product development team.
Technologies: TripAdvisor API, Twitter API, Facebook API, PhoneGap, LiqPay API, Stripe API, CSS, HTML, Yii, Bootstrap, jQuery, PHPJunior iOS Developer
2013 - 2014Coursmos.com- Created PhoneGap plugins for an iOS application. In addition, I fixed, built (compiled), and distributed an iOS application for the App Store.
- Created a custom video record plugin.
Technologies: CSS, HTML, PhoneGap, JavaScript, Objective-CCTO
2012 - 2014Primegate.ru- Created a real-time bidding system for managing ads placed through Google Ads or Yandex Direct.
- Converted Python ML scripts to PHP.
- Created a SaaS application for people who want easily create their own website with a visual editor.
- Used NoSQL (Redis, MongoDB), queue manager Gearman, Smarty, mPDF and APIs (Yandex, Google, InSales).
- Handled front-end development with native JavaScript and jQuery.
Technologies: Gearman, Bootstrap, Yii 2, Yii, CSS, HTML, Python, JavaScript, PHPPHP Developer
2009 - 2014Freelance- Created websites, services, and startups.
- Developed basic Java applications using SQLite and Swing.
- Developed basic iOS applications, both native (using Objective-C) and with PhoneGap (using HTML, JavaScript, CSS).
- Created a private CMS for managing the simple websites of various companies.
- Used the Kohana, CakePHP, Symfony, and Yii/Yii2 frameworks.
- Wrote PHP classes and libraries for large-scale projects.
- Developed modules for DLE CMS and ModX.
- Worked with DLE, ModX, WordPress, and Drupal CMS.
Technologies: Java, Objective-C, CSS, HTML, JavaScript, PHPWeb Developer
2012 - 2013Petrosoft, LLC- Created an Internet-based back-office software system for convenience stores and gas stations.
- Handled XML and JSON parsing.
- Wrote scripts for MySQL database optimization.
- Worked with the cashbox APIs.
- Wrote APIs for mobile applications.
- Wrote jQuery and native JavaScript functions for front-end development.
- Created technical documentation for various projects.
- Used Jira for task management.
Technologies: CSS, HTML, JavaScript, PHPPHP Developer
2011 - 2012Sitespot.ru- Created an internet shop for customers in Russia and Ukraine.
- Performed MySQL optimization for scaling database.
- Adapted websites for IE6 and IE7.
- Performed front-end development using native JavaScript, jQuery, HTML, and CSS.
- Used the Zend Framework and a self-created CMS.
- Scaled CMS functionality.
Technologies: CSS, HTML, JavaScript, PHP