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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
Portfolio
Experience
  • Performance Optimization, 10 years
  • Front-end, 10 years
  • Amazon Web Services (AWS), 10 years
  • Database Caching, 10 years
  • Ruby on Rails (RoR), 10 years
  • Scalability, 8 years
  • Mongoid, 5 years
  • JavaScript, 5 years
San Miguel de Tucumán, Tucumán, Argentina
Availability
Full-time
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.
Employment
  • Lead Back-end Developer
    2017 - PRESENT
    SeatCrawler
    • Implemented an automated test suite to cover the majority of the codebase which was originally not tested.
    • Integrated third-party services fetching data from multiple sources to our platform.
    • Implemented a GraphQL API to expose information to the front-end.
    Technologies: Ruby on Rails
  • Managing Partner/Senior Developer
    2006 - PRESENT
    Insignia SRL
    • Directed technical projects on Ruby on Rails applications. Scaled web apps 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
  • Back-end Developer
    2016 - 2017
    Aces TSS
    • 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
Experience
  • BoxUp (Development)
    http://www.boxupgo.com

    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)
    http://www.guguguru.com

    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)
    http://www.insignia4u.com

    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.

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