CV: Ruby Senior Developer

Responsibilities:
Backend software development (Ruby on Rails, Spree, Sidekiq, Postgre SQL, ActiveResource, RSpec).

Development of business logic features for the company’s ecommerce site backend on Ruby on
Rails and Spree frameworks.

Backend software development of company’s e-commerce platform in the following teams:

- Retail orders
- Supply chain and delivery

Responsibilities:
Backend software development (Ruby on Rails, Spree, Sidekiq, DelayedJob, Que, Postgre SQL, GraphQL, JS, React, Relay).

Backend software development for company's customers on the following projects:

- Electronically distributed ads
- Ecommerce site backend on Spree
- Enterprise management website backend

Backend software development (Ruby on Rails, Roda, Sidekiq, Postgre SQL, Crystal, Go)

Backend software development for company's customers on the following projects:
- Micro loans family of web-sites
- Crypto-exchange platform

Software analysis, installation, maintenance and development:

Various Rails, Grape and Roda API backend servers with Swagger UI documentation.

Sidekiq, Celluloid, Que job schedulers on Redis and Postgre SQL.

Twilio API engine development and integration into a Rails backend.

Skype for Business UCWA client in Ruby.

Skype for Business UCWA client in Qt C++ framework.

Worktime tracker client application in Qt C++ framework.

Jasmin SMPP gateway (Python language) analysis, bug fixing and testing.

Kannel SMPP gateway (C language) analysis, testing and deployment at client site.

chan_dongle Asterisk driver patching.

Business requirements analysis and development:

Asterisk server infrastructure with VoIP and SMS terminating USB dongle boxes.

A social network website with payed video consultations.
Unified Communication vendor analysis.