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senior
Регистрация: 29.03.2022

Sergeu Kojin

Специализация: RubyOnRails full stack developer
Accomplished Software Developer with 20+ years of experience in IT. Experienced RubyOnRails full stack developer. I'm working with rails from version 1, and for the last 10 years I’ve been using rails to build various SASS web applications. IT Expert with technical background and a strong ability to provide effective and innovative technological solutions aligned with business needs within a regulated time frame. I have interest in Crystal as a compiled Ruby alternative, and Golang as a language that complies fast. I like when pages load fast.
ruby on rails Docker JavaScript PostgreSQL MySQL Golang Ruby
Accomplished Software Developer with 20+ years of experience in IT. Experienced RubyOnRails full stack developer. I'm working with rails from version 1, and for the last 10 years I’ve been using rails to build various SASS web applications. IT Expert with technical background and a strong ability to provide effective and innovative technological solutions aligned with business needs within a regulated time frame. I have interest in Crystal as a compiled Ruby alternative, and Golang as a language that complies fast. I like when pages load fast.
ruby on rails Docker JavaScript PostgreSQL MySQL Golang Ruby

Портфолио

Brandrep

Tech stack: RubyOnRails project with MySQL, jQuery Main responsibilities: Project architecture and implementation. Backend & frontend development - Collecting and parsing data from review providers - Reports generation - Google Analytics integration - Twilio integration - Customer support calls integration Results: Extracted public sites part from monolith for heavy cache and made HTTPS work for all 20.000 sites, migrated the application from Ruby on Rails 3 to 5 version.

CustomerBase

Tech stack: RubyOnRails project with PostgreSQL, Redis, Turbolink, and Stimulus.js Main responsibilities: - Project architecture and implementation - Backend & frontend development - RESTful API development Results: - Added 2FA with OTP and SMS - Reduced the level of bounced AWS SES emails - Convinced team to use Stimulus.js - Integrated Google My Business and Reservation - Set up GitHub Action CI - Ruby on Rails 6 to 7 upgrade

JobBoard - SASS job sites network

Tech stack: RubyOnRails project with MySQL and Sphinx Main responsibilities: - Project architecture and implementation. Backend & frontend development - Import/export of large xml, full text search and sites customization - Integration with Authorize.net and PayPal Results: Developed a customizable alternative frontend solution for Indeed and other job sites.

Скиллы

Software development
Teamwork
Attention to Detail

Опыт работы

Senior developer
с 05.2019 - По настоящий момент |CustomerBase SASS CRM for small businesses
RubyOnRails project with PostgreSQL, Redis, Turbolink, and Stimulus.js
- Project architecture and implementation - Backend & frontend development - RESTful API development
Senior full stack developer
05.2012 - 05.2019 |Brandrep - SASS small business site generator
RubyOnRails project with MySQL, jQuery
Main responsibilities: Project architecture and implementation. Backend & frontend development - Collecting and parsing data from review providers - Reports generation - Google Analytics integration - Twilio integration - Customer support calls integration Results: Extracted public sites part from monolith for heavy cache and made HTTPS work for all 20.000 sites, migrated the application from Ruby on Rails 3 to 5 version.
Developer
11.2001 - 05.2019 |Z-Group
Ruby, Java
Different web projects as contractor.

Образование

Data Processing and Computer-Aided Management (CAM) Systems (Магистр)
1997 - 2002
Volgograd State Technical University

Языки

АнглийскийВыше среднегоРусскийРодной
ruby on railsDockerJavaScriptPostgreSQLMySQLGolangRuby