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Carlos Kozuszko

Carlos Kozuszko

San Miguel de Tucumán, Tucumán, Argentina
Member since March 30, 2015
Carlos has a strong technical background focused on web technologies. He has mastered Ruby on Rails, among other tools, but his focus is on background implementations. For over ten years, he has been managing a web development team as its technical lead and a developer.
Carlos is now available for hire
  • Aces TSS
    Ruby on Rails, Amazon Web Services, Google Cloud
  • Insignia SRL
    Ruby, Ruby on Rails, Sinatra, JavaScript
  • Front-end, 10 years
  • Ruby on Rails (RoR), 10 years
  • Amazon Web Services (AWS), 10 years
  • Performance Optimization, 10 years
  • Database Caching, 10 years
  • Scalability, 8 years
  • JavaScript, 5 years
  • Mongoid, 5 years
San Miguel de Tucumán, Tucumán, Argentina
Preferred Environment
Ruby on Rails, Git/GitHub, Heroku, Cloud66
The most amazing...
...websites I've made performance improvements on were required to handle millions of visitors a month.
  • Back-end Developer
    Aces TSS
    2016 - PRESENT
    • Connected Google Cloud Storage accounts with the application.
    • Set up and implemented a business intelligence platform (Sisense).
    • Used CloudWatch to gather and report detailed metrics about storage use on AWS.
    • Reviewed code for other team members.
    • Implemented and documented API endpoints with Swagger.
    Technologies: Ruby on Rails, Amazon Web Services, Google Cloud
  • Managing Partner/Senior Developer
    Insignia SRL
    2006 - PRESENT
    • Directed technical projects on Ruby on Rails applications. Scaled web apps to to handle heavy traffic.
    • Managed a team of developers. Provided technical consulting to the team and handled technical decisions for the applications.
    • Handled tech interviews, evaluating the skills of potential new hires, both hard and soft.
    • Performed code reviews on other people's code. Accepted code requests and assessed the quality of the code.
    Technologies: Ruby, Ruby on Rails, Sinatra, JavaScript
  • BoxUp (Development)

    BoxUp is an eCommerce platform developed to connect small businesses and corporate ERPs and the leading Latin American eCommerce platforms (MercadoLibre and TiendaNube).

    It's also an email marketing tool allowing sellers to send massive volumes of email to their clients, which are automatically imported from the marketplaces.

    I have written all the back-end code for this project in Ruby on Rails for the past two years. It currently uses Rails 4.2 and MongoDB+Mongoid as a database.

    It handles background tasks with Resque to connect with external APIs and massive email sending.

  • Gugu Guru (Development)

    I'm responsible for the overall architecture, reviewing the code implemented by the development team.

    I have personally migrated the project to the latest version of Ruby on Rails (4.2 at the time) and MongoID 5.1

  • INSIGNIA (Development)

    This is my own website. A simple website with the code open sourced to work also as a code sample.

    It has a simple front-end with a back-end to manage all the information.

    It runs on the latest Rails 5 version.

  • Languages
    Ruby, JavaScript, CoffeeScript, PHP
  • Frameworks
    Ruby on Rails (RoR), Swagger, Sinatra
  • Tools
    Basecamp, RSpec, GitLab, GitHub, Cloud66, BitBucket, AWS SDK, AWS CloudWatch, Trello
  • Other
    Performance Optimization, Front-end, Scalability, Optimization
  • Libraries/APIs
    Mongoid, jQuery, WebSockets
  • Platforms
    New Relic, Heroku, Amazon Web Services (AWS), Linux, DigitalOcean, Google Cloud SDK, AWS EC2
  • Storage
    Redis, Database Caching, PostgreSQL, MongoDB, Memcached, MySQL, AWS S3, Google Cloud Storage, SQLite, AWS RDS
  • Master's degree in Business Administration
    Universidad del Norte San Tomás de Aquino - San Miguel de Tucuman
    2011 - 2013
  • Engineer's degree in Computer Engineering
    Universidad Tecnologica Nacional - Facultad Regional Tucuman - San Miguel de Tucuman
    1999 - 2006
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