Viacheslav Dushin

Saint Petersburg, Russia

Member since December 25, 2013

Viacheslav is a software engineer with five years of experience in web application development with Ruby on Rails and JavaScript (including Prototype, jQuery, Backbone, etc.). He also has experience with MySQL, PostgreSQL, MongoDB, Salesforce, GPS tracking, Python, C, and more.

Ruby Ruby on Rails (RoR)Agile Software Development Fortran JavaScript Python CoffeeScript Prototype Framework jQuery PostgreSQL jQuery UI MongoDB C SQL Linux Show more

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Portfolio

Freelance
Rails, Ruby, JavaScript, jQuery, PostgreSQL, MongoDB, Node.js, Python
Spreemo (via Toptal)
Ruby on Rails, QuickBooks, API, JavaScript
OBS Labs
Ruby on Rails, JavaScript

Experience

Agile Software Development, 8 years
Ruby, 8 years
Ruby on Rails (RoR), 8 years
JavaScript, 7 years
jQuery, 6 years
Python, 4 years
MongoDB, 3 years
AngularJS, 1 year

Availability

Part-time

Preferred Environment

Mac OS X, Linux

The most amazing...

...software I've ever built on Ruby on Rails is an online marketplace with Salesforce integration.

Employment

Developer
Freelance
2010 - PRESENT
- Implemented a real-time deal search engine, including an API.
- Created a candidate screening platform.
- Developed a Rails and Salesforce application for a small consulting company.
- Created a social network with Node.js and Ruby on Rails.
- Wrote a web crawler for a search engine.
- Developed a Groupon clone.
Technologies: Rails, Ruby, JavaScript, jQuery, PostgreSQL, MongoDB, Node.js, Python
Senior Rails Developer
Spreemo (via Toptal)
2015 - 2017
- Developed a API using Ruby on Rails.
- Worked with microservices.
Technologies: Ruby on Rails, QuickBooks, API, JavaScript
Rails Developer
OBS Labs
2007 - 2010
- Created a social network.
- Created a GPS tracking system.
- Developed an online recruitment platform.
- Developed a simple Basecamp clone.
- Built a simple online sales platform.
Technologies: Ruby on Rails, JavaScript

Experience

GPS tracking system (Development)
GPS tracking system with web interface for a transport company that allows for tracking of vehicles in real time.
Real-time dining deal search engine (Development)
Real-time dining deal search engine with an API and mobile application that allows users to find nearby deals.
On-line Candidate Screening Platform (Development)
Iinnovative candidate screening platform that allows recruiters to find the best candidates for job positions.
Rails and Salesforce Application (Development)
Rails and Salesforce application for a small investment company (for internal use only).

Skills

Languages
Ruby, JavaScript, Python, CoffeeScript, Fortran, SQL, C
Frameworks
Ruby on Rails (RoR), Prototype Framework, Machine Learning, AngularJS, Scrapy
Paradigms
Agile Software Development, Test-driven Development (TDD)
Libraries/APIs
jQuery UI, jQuery, Facebook API, Backbone.js
Storage
NoSQL, MongoDB, PostgreSQL, MySQL, SQLite
Tools
Mathematica
Platforms
Salesforce, Linux, Mac OS, Debian Linux
Other
GNU

Education

Ph.D. degree in Astrophysics and Stellar Astronomy
St. Petersburg State University - St. Petersburg, Russia
2009 - 2015
Specialist's degree in Astrophysics and Radio Astronomy
St. Petersburg State University - St. Petersburg, Russia
2004 - 2009

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