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Leonardo de la Cerda, C++ Developer in Guadalajara, Mexico
Leonardo de la Cerda

C++ Developer in Guadalajara, Mexico

Member since June 6, 2017
Leo has experience working in big teams such as Microsoft using C/C++ and smaller ones like Ooyala which sold for $400+ million. He has also been an entrepreneur, creating a couple of tech startups from scratch with a focus on Ruby and Python development.
Leonardo is now available for hire

Portfolio

Experience

  • C++, 10 years
  • Ruby, 4 years
  • Nginx, 4 years
  • Sinatra, 3 years
  • MySQL, 2 years
  • PostgreSQL, 2 years
  • Ruby on Rails 5, 2 years
  • Docker, 1 year
Guadalajara, Mexico

Availability

Part-time

Preferred Environment

Mac OS, GitHub, Sublime

The most amazing...

...company that I've started was an online web app that can provide automatic loans. I coded the MVP.

Employment

  • CTO and Co-Founder

    2017 - 2018
    100 Bricks/100 Ladrillos
    • Created and developed a marketplace to buy and sell "real estate stocks."
    • Designed and developed an accountable reliable system that can keep track of all user's money accounts.
    • Managed all servers in AWS, ensuring to deliver the content in the fastest way possible.
    • Included e2e and unit testing in every commit of myself and the team.
    • Developed a dashboard to manage and control all aspects of the web app.
    • Designed the whole database schema for the web app.
    Technologies: Ruby on Rails, PostgreSQL, AWS
  • Co-founder, Back-end Developer

    2016 - 2017
    Up IQ
    • Managed a productive AWS infrastructure that could deliver millions of unique landing pages in milliseconds.
    • Designed and developed a system in Python that precomputes and saves millions of unique landing pages.
    • Wrote dozens of SQL queries to extract data permutations on a database.
    • Maintained in production a big legacy system written in Groovy on Grails.
    • Optimized the pages for a better SEO and Google indexing.
    Technologies: Python, Flask, PostgreSQL, AWS, Groovy on Grails
  • Co-founder, CTO

    2012 - 2015
    Kueski
    • Wrote a feature in jQuery that monitors the user behavior through the website. This is used later as data in the machine learning system.
    • Connected with plenty of 3rd party web services that provide data.
    • Automated the loan money transfer to clients.
    • Recruited and hired a world class team of ten engineers.
    • Used map reduce and wrote a system that can compute hundreds of variables from the data available. This was used for the production credit risk model and the data scientists to build the next model version.
    • Created an automated system that sends an SMS/email to clients on their loan payment due date.
    • Created a dashboard used by our internal team for client support and loan collection.
    • Fully developed the first version of a web application that provides online loans in minutes.
    Technologies: Ruby, Sinatra, MongoDB, MySQL, AWS, NginX, Ubuntu, jQuery
  • Intern - Software Developer Engineer

    2012 - 2012
    Ooyala
    • Learned web development.
    • Developed a couple of micro-services.
    • Coded a file uploader and downloader before HTML5.
    Technologies: Ruby, Sinatra, MySQL, AWS
  • Game Developer

    2009 - 2012
    Grand Tiki Games
    • Coded hook physics into interactive buttons to behave with simple harmonic motion.
    • Coded a full iOS platform game with Unity3D.
    • Created a random level generator.
    Technologies: Virtools, Unity3D
  • Software Developer Engineer

    2007 - 2009
    Microsoft
    • Coded features for Word 2010.
    • Fixed several bugs that were shipped in Office 2007 Service Pack 2.
    Technologies: C/C++

Experience

  • Kueski (Development)
    https://kueski.com

    Web app (in Mexico) to provide microloans in minutes. Credit risk and fraud engine fully automated.

  • 100 Bricks (Development)
    https://www.100ladrillos.com

    Marketplace to buy and sell "Tokenized" real estate.

Skills

  • Languages

    C++, Ruby, Python, C, JavaScript, Java, C#, VHDL
  • Frameworks

    Ruby on Rails 5, Flask, Sinatra
  • Tools

    Amazon SQS, AWS CLI, Sublime Text 3, Vim Text Editor, Docker Compose, AWS Fargate, Amazon CloudFront CDN, Nginx, Apache
  • Paradigms

    Test-driven Development (TDD), Scrum, Agile
  • Platforms

    Web, Docker, AWS Elastic Beanstalk, AWS Lambda
  • Storage

    MySQL, MongoDB, PostgreSQL, Redis, AWS S3, AWS RDS
  • Other

    SSL, AWS Route 53
  • Libraries/APIs

    jQuery, Facebook API

Education

  • Bachelor's degree in Computer science
    2002 - 2006
    ITESO - Guadalajara, Mexico
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