Kamil Tusznio, Software Developer in Kitchener, ON, Canada
Kamil Tusznio

Software Developer in Kitchener, ON, Canada

Member since December 11, 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




Kitchener, ON, Canada



Preferred Environment

Git, Vim, OS X

The most amazing...

...side project I'm most proud of is www.myminutesapp.com, which I sold.


  • Freelance Developer/CEO

    2015 - PRESENT
    Earlier Labs, Inc.
    • Completed projects for early-stage startup clients.
    Technologies: Ruby on Rails (RoR), Ruby, JavaScript, Go
  • 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 m.threadflip.com 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: Node.js, Android, Ruby on Rails (RoR)
  • 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: batman.js, JavaScript, Ruby on Rails (RoR)
  • 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: JavaScript, Ruby on Rails (RoR)


  • Threadflip Redesign

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

  • My Minutes

    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

    Haml, Sass, HTML5, JavaScript, Ruby, Go, Java
  • Frameworks

    Bootstrap, Ruby on Rails (RoR), Dagger
  • Libraries/APIs

    React, Retrofit, Stripe, Backbone.js, jQuery, RxJava, Node.js, PayPal API, Facebook API
  • Tools

    Git, Vim Text Editor, Android Studio
  • Paradigms

    Agile Software Development, Functional Programming, Class-based OOP, Prototype-based OOP
  • Platforms

    Shopify, Android, OS X
  • Storage

    PostgreSQL, MySQL, Redis
  • Other

    Vim, batman.js


  • Bachelor's Degree in Computer Science
    2005 - 2010
    University of Waterloo - Waterloo, ON

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