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Bio

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Sergei Alekseenko is a seasoned software developer with extensive experience in Ruby on Rails, Ruby, and PHP. He has worked with various companies, including Stack Builders, Servers.com, Netology, LLC, Teachbase, Elecard-Med, and DevStyle, Ws70, Freelance. Alekseenko holds a Master's degree from Tomsk State University of Control Systems and Radioelectronics. He has expertise in software architecture, DevOps culture, and cloud systems, and has worked on projects such as e-learning platforms, web-portals, and SaaS applications. With proficiency in multiple programming languages, including Ruby, PHP, and JavaScript, Alekseenko has a strong foundation in full-stack development and has experience with frameworks like Ruby on Rails, YII, and React.js.

Experience

    • Ruby developer
      • Nov 2018 - Present

  • Servers.com
    • Limassol, Cyprus
    • Backend developer
      • Mar 2018 - May 2019
      • Limassol, Cyprus

    • Ruby on Rails Course Lead Developer
      • Feb 2018 - Sep 2018
      • Moscow

      I've created an e-learning Ruby on Rails on-line course. Was a course's team leader and have managed few other methodists (also Ruby developers).

    • Russian Federation
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Chief Technology Officer, Team Leader, Lead Architect
      • Jun 2016 - Feb 2018

      That was my first experience as CTO and Team Leader. I've managed the team of 6 members: 3 Ruby developers, 2 frontend developers (React.js) and one QA engineer.I've been working on software architecture, DevOps culture. I've managed my team most part of the time. At free time I was working with Elixir, Ruby. I have also created a service for dynamic obtaining and balancing SSL certificates for our customer's second-layer domain names.

    • Senior Ruby on Rails developer
      • Dec 2015 - Jun 2016

      I have been working on the cloud system for files conversion based on Erlang / Elixir, but I was a Ruby developer the most part of time also.I've supported the external version of SaaS for our big clients and used DevOps instruments - Ansible, Capistrano, Docker.

    • Ruby on Rails developer
      • Jul 2014 - Dec 2015

      My achievements:Developing from scratch the best e-learning platform in Russia using Ruby on Rails, Postgres, Redis, Sidekiq and InfluxDB. I was a full stack developer and have been using CoffeeScript, Sass, and JavaScript for frontend development.

    • Back-end Developer
      • Jan 2014 - Jun 2014
      • Tomsk

      I've created web-portal for Tomsk's Insurance Foundation using PHP YII framework and PostgreSQL. I have been writing many stored procedures and triggers with PL/PgSQL for that web project.I have also been working as Ruby developer and created some Redmine plugins for the internal billing system.

    • Web Software Developer
      • Mar 2012 - Dec 2013
      • Tomsk

      I've been working as PHP developer for Tomsk's web companies such as DevStyle, WS70, ASOT during 1.5 years.I had experience with e-commerce applications, websites, e-learning software. And I have been tried some PHP content management systems like Cs-Cart, MODx, etc.I've used Ruby and Rails as main framework for my freelance job.

Education

  • Tomsk State University of Control Systems and Radioelectronics
    Master's degree

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Industry Focus. “Software Development”

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