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Kamil Tusznio

Kamil Tusznio

Kitchener, ON, Canada
Member since October 28, 2014
Kamil is a full-stack developer who builds outstanding products for early-stage startups, helping them drive their business and delight their users. He prides himself on completing projects on time and on budget, with clear and no-hassle communication throughout.
Kamil is now available for hire
  • JavaScript, 8 years
  • Ruby, 4 years
  • PostgreSQL, 4 years
  • Ruby on Rails (RoR), 4 years
  • Git, 4 years
  • Backbone.js, 2 years
  • RxJava, 1 year
  • React, 1 year
Kitchener, ON, Canada
Preferred Environment
OS X, Vim, Git
The most amazing...
...side project I'm most proud of is, which I sold.
  • Freelance Developer/CEO
    2015 - PRESENT
    Earlier Labs, Inc.
    • Completed projects for early-stage startup clients.
    Technologies: Go, JavaScript, Ruby on Rails
  • Software Engineer
    2012 - 2014
    • Architected and implemented a site re­design and front­end architecture, improving site performance, company brand, and revenue.
    • Architected and implemented an end­-to-­end system to submit, accept, and negotiate offers on items, resulting in significant revenue lift.
    • Spearheaded and developed from scratch in six weeks, improving the mobile experience for users and creating a new revenue stream.
    • Designed and implemented the system for inventory smart pricing in a Rails back­-end, resulting in significant revenue lift.
    • Implemented and maintained Android features (search, closet pages, design overhaul).
    • Designed and implemented the system for a feed web service in Node.js and PostgreSQL (later migrated to Redis), resulting in large lift in user engagement.
    • Conducted an overhaul of the customer service team’s admin interface, enabling them to handle an influx of orders on Black Friday and during the holiday season.
    • Integrated PayPal checkout.
    • Mentored and shared knowledge with team members.
    Technologies: Ruby on Rails, Android, Node.js
  • Software Developer
    2011 - 2012
    • Developed a JavaScript framework on Batman.js. Implemented association support and various other features.
    • Worked on a second major version of the Shopify admin interface, implemented using Batman.js and Rails.
    Technologies: Ruby on Rails, JavaScript, Batman.js
  • Software Engineer
    2010 - 2011
    • Led the development team for the Click For Charity and Give A Minute products that enabled users to complete activities that earned money for charity.
    • Led the development team on a special Valentine’s Day product that allowed users to buy flowers and chocolates through Causes to earn money for one of five selected charities.
    • Designed and implemented a JavaScript API to integrate ad provider inventory.
    Technologies: Ruby on Rails, JavaScript
  • Threadflip Redesign (Development)

    I re-architected the web front-end and implemented new site design, improving the site performance, company brand, and revenue.

  • My Minutes (Development)

    Built to help me learn iOS. I launched it in the App Store and sold it a year later after attracting over 10k downloads.

  • Languages
    Sass, JavaScript, Haml, Ruby, HTML5, Java, Go
  • Frameworks
    Bootstrap, Ruby on Rails (RoR), Dagger
  • Libraries/APIs
    React, jQuery, Backbone.js, Stripe, Retrofit, RxJava, Facebook API, PayPal API, Node.js
  • Tools
    Git, Android Studio, Vim Text Editor
  • Paradigms
    Functional Programming, Prototype-based OOP, Class-based OOP, Agile Software Development
  • Platforms
  • Storage
    PostgreSQL, Redis, MySQL
  • Bachelor's degree in Computer Science
    2005 - 2010
    University of Waterloo - Waterloo, ON
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