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Andrey Krivko
Verified Expert in Engineering
Software Developer
Omsk, Omsk Oblast, Russia
Toptal member since August 9, 2015
Bio
Andrey has over nine years of experience in web development. He specializes in developing projects based on Ruby/Go on the back end and React, Vue.js, and AngularJS on the front end. He loves challenges and is excited to help clients bring their ideas to life.
Portfolio
Scratchpad
Go, Vue, PostgreSQL, Ruby, Redux, Redux-Saga, Chrome Extensions, Docker
PersistIQ
Ruby, Ruby on Rails (RoR), Redis, Salesforce API, PostgreSQL, AngularJS, Vue...
Live Typing
Behavior-driven Development (BDD), jQuery, VK API, PostgreSQL, RSpec...
Experience
- JavaScript - 8 years
- PostgreSQL - 7 years
- Ruby - 7 years
- Ruby on Rails (RoR) - 7 years
- RSpec - 6 years
- Vue - 5 years
- React - 3 years
- Go - 3 years
Work Experience
Full-stack Software Engineer
2019 - PRESENT
Scratchpad
- Developed the front end, back end, and Chrome extension apps.
- Wrote engineering specs for front and back end services.
- Migrated the front end application from Vue 2 to Vue 3.
Technologies: Go, Vue, PostgreSQL, Ruby, Redux, Redux-Saga, Chrome Extensions, Docker
Full-stack Software Engineer
2018 - 2019
PersistIQ
- Developed the front end, back end, and Chrome extension apps.
- Collaborated and was involved in migrating from AngularJS to Vue 2.
- Made a refactoring of the message verifier, having custom rules depending on a huge number of different messages and related records attributes.
- Developed a gem for working with third-party data providers.
Technologies: Ruby, Ruby on Rails (RoR), Redis, Salesforce API, PostgreSQL, AngularJS, Vue, Chrome Extensions, React, Bootstrap, JavaScript, CSS, Test-driven Development (TDD), Git, RSpec, Docker, ProsperWorks CRM API
Full Stack Developer | Team Lead
2013 - 2018
Live Typing
- Created a number of projects, including high-load products.
- Set up and configured Unix servers using Chef or Ansible.
- Worked on designing the architecture of back-end services.
- Designed and implemented RESTful APIs for mobile and web applications.
- Developed a number of responsive front-end applications and admin panels.
- Mentored junior and middle developers. Did code review and pair coding sessions.
- Integrated social network and third-party websites.
- Developed a number of Chrome extensions working with third-party APIs.
Technologies: Behavior-driven Development (BDD), jQuery, VK API, PostgreSQL, RSpec, Test-driven Development (TDD), Bootstrap, Git, Ruby, HTML5, CSS, JavaScript, React, AngularJS, Ruby on Rails (RoR), Sidekiq, NGINX, Vue, Chrome Extensions, Sinatra, Apache, MySQL, Instagram API, Facebook API, MongoDB, Docker, Ansible, X (formerly Twitter) API, PostCSS, Hanami, minitest
Project History
Confa.me
A service that helps to create and manage events: conferences, meetups, hackathons, etc. It provides an admin panel, web application, and native mobile applications with the ability to:
• view schedules.
• view information about speaker and spokespersons.
• vatch the news, send comments with attachments.
• answer poll questions.
• get notifications.
Responsibilities included: back-end architecture, comprehensive TDD-oriented application development, designing and implementation of the RESTful API, development of the admin panel, and Unix server set up and configuration.
Created conference apps for Pepsico, Conde Nast, Moco Forum, MIK Omsk Forum, etc.
• view schedules.
• view information about speaker and spokespersons.
• vatch the news, send comments with attachments.
• answer poll questions.
• get notifications.
Responsibilities included: back-end architecture, comprehensive TDD-oriented application development, designing and implementation of the RESTful API, development of the admin panel, and Unix server set up and configuration.
Created conference apps for Pepsico, Conde Nast, Moco Forum, MIK Omsk Forum, etc.
Polls of Transport Department of Moscow
Website and mobile apps for iOS and Android which help analyze the work of transport services and take part in solving traffic problems in Moscow.
Responsibilities:
• Architecture design
• TDD-based application development
• Design and implementation of public API
• Development of Chrome Extension
The project is closed right now.
Responsibilities:
• Architecture design
• TDD-based application development
• Design and implementation of public API
• Development of Chrome Extension
The project is closed right now.
Planch.me
Time tracking and team allocation service. A kind of clone of getharvest.com and getharvest.com/forecast.
Responsibilities included: Application architecture, TDD-oriented back-end development, and font-end development using AngularJS.
Screenshots
http://monosnap.com/image/L0jJoPhW1wzcBUZ6oVYU8jmhExWREl.png
http://monosnap.com/image/Jujoj6ITBMBTYxRzVgFZpXcoeoaOap.png
http://monosnap.com/image/2BtpQbzhyH4XUfS2MTqB9mlARFCTU7.png
http://monosnap.com/image/IrHlrBauUUufUq3tRMwRaQkdKw1jRG.png
http://monosnap.com/image/LUJpBVmNPlrIeRUZMUIgA9lm6czWBW.png
Responsibilities included: Application architecture, TDD-oriented back-end development, and font-end development using AngularJS.
Screenshots
http://monosnap.com/image/L0jJoPhW1wzcBUZ6oVYU8jmhExWREl.png
http://monosnap.com/image/Jujoj6ITBMBTYxRzVgFZpXcoeoaOap.png
http://monosnap.com/image/2BtpQbzhyH4XUfS2MTqB9mlARFCTU7.png
http://monosnap.com/image/IrHlrBauUUufUq3tRMwRaQkdKw1jRG.png
http://monosnap.com/image/LUJpBVmNPlrIeRUZMUIgA9lm6czWBW.png
Barbie Letter
Promo iFrame Application for the Barbie brand in the Odnoklassniki social network. It was a New Year card constructor with more than a million users and more than 200,000 cards.
Responsibilities:
• Architecture design and application development
The project is closed.
Responsibilities:
• Architecture design and application development
The project is closed.
Contestify.ru
A web application that helps to create and manage contest applications. It provides an admin panel, a web application for the contest, and a RESTful API to create mobile or web apps.
Responsibilities:
• Design the back and front-end architecture
• TDD-oriented back-end development
• Designed and implemented the RESTful API
• Development of the admin panel
• Unix server set up and configuration
• Development of front-end SDK
• Integration with social networks and 3D-party websites
• Development and support for tens of completed contests (Hairchalk for Loreal, Sin City 2, TicTac, Taft for Henkel, Conde Nast, Oriflame).
The Contestify platform created by Live Typing has these features:
• Product moderation
• Product gallery with sorting and filtering
• Configurable product upload form (photos, files, text)
• Social network integration (Sharing and Likes)
• Internal voting engine
• Admin panel
Responsibilities:
• Design the back and front-end architecture
• TDD-oriented back-end development
• Designed and implemented the RESTful API
• Development of the admin panel
• Unix server set up and configuration
• Development of front-end SDK
• Integration with social networks and 3D-party websites
• Development and support for tens of completed contests (Hairchalk for Loreal, Sin City 2, TicTac, Taft for Henkel, Conde Nast, Oriflame).
The Contestify platform created by Live Typing has these features:
• Product moderation
• Product gallery with sorting and filtering
• Configurable product upload form (photos, files, text)
• Social network integration (Sharing and Likes)
• Internal voting engine
• Admin panel
Education
2008 - 2014
Master's Degree in Computer Science
Omsk State Technical University - Russia, Omsk
Certifications
JANUARY 2019 - PRESENT
Deep Learning Specialization
Coursera
NOVEMBER 2012 - PRESENT
Software as a Service
EdX
Skills
Libraries/APIs
Vue, React, Sidekiq, VK API, jQuery, ProsperWorks CRM API, Salesforce API, Instagram API, X (formerly Twitter) API, Facebook API, Redux-Saga, REST APIs
Tools
Git, RSpec, Vim Text Editor, PostCSS, Ansible, Apache, NGINX, GitLab CI/CD
Languages
HTML5, Ruby, JavaScript, CSS, Go, Elixir
Frameworks
Ruby on Rails (RoR), Sinatra, Bootstrap, Hanami, AngularJS, Capybara, minitest, Redux, Swagger
Paradigms
Test-driven Development (TDD), Behavior-driven Development (BDD)
Storage
PostgreSQL, Amazon S3 (AWS S3), MySQL, MongoDB, Databases, Redis
Platforms
Docker, MacOS, Visual Studio Code (VS Code)
Other
Puma, Chrome Extensions, iTerm2, Deep Learning, Dry-rb, Computer Science, Software Development, Computer Graphics, APIs
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