Andrey Z.

Andrey Z.

Kyiv, Ukraine
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About Me

I am a talented and experienced Ruby on Rails Developer with expertise in ReactJS. I enjoy creating APIs, on the Ruby framework, and working on SPA front-ends with ReactJS. I often work on complex tasks, with new technologies and frameworks, and am motivated by challenging projects and deadlines. Passionate about setting lofty goals, I strategically develop innovative and detailed plans to achieve them. I am an avid learner and the development of new skills is a driving force behind everything I do.

Frontend

Angular.JS JavaScript React.js

Backend

PHP

Database

MongoDB MySQL PostgreSQL

Other

Graphql Mac OS Ruby Unix Web Crawler

Work history

UpStack
UpStack
Senior Ruby on Rails Developer
2016 - Present (9 years)
Remote

  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

RubyRuby on RailsPHPJavaScriptAngular.JSReact.jsUnixMac OSPostgreSQLMongoDB
Whitespectre
Whitespectre
Full-stack Ruby on Rails Developer
2021 - Present (4 years)
Remote

Working for a company developing products - web/mobile apps and back-end platforms - to help companies grow and innovate.

Ruby on RailsRubyPostgreSQLReact.js
GlobalLogic
GlobalLogic
Full-stack Ruby on Rails Developer
2016 - 2021 (5 years)
Kiev, Ukraine

  • Migrated a project and its assets to Amazon services for better asset handling and a more scalable project.

  • Migrated about 80% of the project components from jQuery to SPA on React.js, considerably improving UI and UX for users.

  • Worked with a client to improve the performance of a large project separated into two services by successfully integrating RabbitMQ.

Ruby on RailsRubyPostgreSQLReact.jsjQueryMercurialRabbitMQ
GlobalLogic
GlobalLogic
Ruby on Rails Developer
2015 - 2016 (1 year)
Kiev, Ukraine

  • Reviewed code and refactored unit and integration tests, decreasing test execution time from 12 hours to 5-6 hours.

  • Made effective architectural design decisions that improved UI and UX and added the ability for admins to upload images directly to the S3 Amazon service.

  • Built advertisement specifications into the platform including VPAID, MRAID, and VAST for administrative use.

RubyRuby on RailsPostgreSQLJavaScriptCoffeeScriptjQuerySlimHAMLGitCode ReviewIntegration TestingUnit TestingArchitectural Design MRAID VAST
Sphere Software
Sphere Software
Ruby on Rails Developer
2015 - 2015
Kharkov, Ukraine

  • Supported and enhanced a management system that helps businesses to choose the right job candidates for an organization.

  • Developed a secure system interface with the Indeed jobsite API and implemented new features for the system.

  • Defined and built new services to generate numerous and complex status reports for the client.

ES6GulpPolymerJavaScriptCoffeeScriptjQueryMySQLRubyRuby on Rails
Envion Software
Envion Software
PHP Developer
2013 - 2014 (1 year)
Kharkov, Ukraine

  • Wrote a clean, modularized, and testable application for a US dance school from scratch using PHP Symfony 2 framework.

  • Created and maintained a custom jQuery calendar for parents to quickly enroll their children for dance lessons.

  • Provided high-level product support by refactoring current codebase of an online bookstore that sells books, CDs, and other contents for children in the UK and US.

PHPJavaScriptSymfony FrameworkMySQLGitjQuerySymfony 2
Freelance
Freelance
PHP Developer
2012 - 2013 (1 year)
Remote

  • Built responsive and native modules and scripts for existing portals and developed sites from scratch.

  • Used the latest development tools to gather requirements, create project specifications, and improve the quality of products and codes.

  • Developed and maintained client web applications and APIs using PHP.

PHPHTMLXMLCSSMySQLJavaScriptGitSVNSSHEclipsePHPMyAdmin

Showcase

Ruby on Rails Engineer - Better Feedback
Ruby on Rails Engineer - Better Feedback

  • Responsible for creating employee feedback, reviews, recognitions, and goals.

  • Focused on improving collaboration between employees and top clients like BuzzFeed, Ubisoft, and Tumblr.

  • Developed new features and improved existing functionality through code refactoring.

Ruby on Rails Developer - InfoFocus
Ruby on Rails Developer - InfoFocus

  • A Ruby on Rails Developer project focused on supporting phone devices using the OOMA API.

  • The Infocus platform offers tools for global enterprise infrastructure and employee collaboration.

  • The project aims to enhance efficiency, productivity, and success through seamless solutions.

Ruby on Rails Developer - Better Interviews
Ruby on Rails Developer - Better Interviews

  • A management system to help businesses select the right candidates.

  • Users can source candidates from various channels.

  • The project focuses on improving interview processes.

Education

Master's Degree, Information Security
Master's Degree, Information Security
Kharkiv National University of Radioelectronics - Ukraine
2003 - 2008 (5 years)