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Oleksandr – Ruby, JavaScript, Vue.js, experts in Lemon.io

Oleksandr

From Ukraine (GMT+3)

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Full-stack Web DeveloperSenior
Hire developer
9 years of commercial experience
Art and creativity
Project management
Real estate
Nonprofit
Rental
Sponsorship
Platforms
Lemon.io stats
3
projects done
572
hours worked
Open
to new offers

Oleksandr – Ruby, JavaScript, Vue.js

Oleksandr is an expert in Ruby/Ruby on Rails, React, and Vue, with more than 9 years of commercial experience. His team-leading background and profile education complement his development skills. Projects in SaaS, real estate, and NGO are only part of Oleksandr's accomplishments. Great English, soft skills, and a positive attitude make him a valuable addition to any team.

Main technologies
Ruby
9 years
JavaScript
7 years
Vue.js
7 years
React
7 years
Additional skills
RSpec
Erlang
ElasticSearch
Karma
Cucumber
Stimulus
Capybara
PostgreSQL
Angular
MySQL
Ruby on Rails
Docker
Kubernetes
Sidekiq
OAuth
AWS
Rewards and achievements
Client's favourite
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior full stack developer / Team lead
Jan 2021 - Ongoing3 years 5 months
Project Overview

The application is one of the biggest platforms for artists, mainly digital. It provides wide range of services for artists including social media, portfolio builder and showcase (aka own website), marketplace, challenges section, learning platform, jobs searching and recruitment platform and much more.

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Responsibilities:
  • performed back-end architecture design and implementation;
  • knowledge sharing and mentoring;
  • implemented custom jobs filtering/search system by job office location (upside-down filtering from continent region to city level);
  • implemented progress and statistics tracking system for learning courses in the application (different metrics on course, playback position);
  • took part in all decisions making from the idea to final implementation;
  • integrated with application tracking systems (Greenhouse, Lever).
Project Tech stack:
Ruby
Angular
ElasticSearch
PostgreSQL
JavaScript
Docker
Kubernetes
Core software developer
Jun 2018 - Jan 20212 years 6 months
Project Overview

System for companies working with freelancers. It provides tools for managing work with freelancers including onboarding (filling in custom forms, providing legal documents, contracts signing), project/tasks management, invoicing, communication, and payments.

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Responsibilities:
  • created front-end and back-end architecture;
  • created custom WYSIWYG elements and behaviour;
  • implemented dynamic customisable user compliance flow architecture;
Project Tech stack:
Ruby
Ruby on Rails
Stimulus
PostgreSQL
Core software developer
Mar 2018 - Jun 20183 months
Project Overview

Project aimed to help different non-profit organizations to gather donations in a funny way. Users were betting some money for chosen celebrities' dummy or rude tweets. Won bets were transferred to non-profit organizations, aka turning bad in good. System was tracking tweet feed and searching for keywords matches users selected and then charged users with a selected amount of money.

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Responsibilities:
  • created front-end and back-end architecture;
  • integrated with Twitter feeds API to fetch realtime tweets and process them;
  • implemented full text search on keywords in tweets;
  • integrated with Stripe for payments;
Project Tech stack:
Ruby
Rails
PostgreSQL
React
React
Ruby
Ruby on Rails
PostgreSQL
Docker
Docker Compose
Fullstack developer
Mar 2017 - Feb 201810 months
Project Overview

Platform allows businesses to build their own loyalty programs. It is an API for mobile applications for end-users (business customers) and API for admin panel for businesses' loyalty programs management, building analytics.

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Responsibilities:
  • implemented new and supported existing features;
  • implemented feature for automatic generator of ID card images ready for printing
Project Tech stack:
Ruby
Ruby on Rails
Angular
Software developer
Jun 2015 - Feb 20171 year 7 months
Project Overview

Metasearch of properties for short term rent. One place for searching and booking hotel rooms or apartments anywhere on the globe via the most popular rental vendors (Booking.com, Airbnb, HomeAway and other 70+ vendors).

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Responsibilities:
  • implemented back-end features;
  • integrated with numbers of different vendors (Booking.com, Airbnb, HomeAway and others);
  • learned Erlang bases and implemented realtime rental posting price and availability refinement using separate service;
Project Tech stack:
Ruby
React
Erlang
Sidekiq

Education

2016
Computerised control systems and automation
Master's

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