David Mihal, Chrome Extensions Developer in Boston, United States
David Mihal

Chrome Extensions Developer in Boston, United States

Member since January 8, 2017
David has been developing websites and web applications for all of his adult life. As a software engineer, he's worked for many diverse software companies from early-stage startups to Google. David is experienced with many web frameworks and environments, but he particularly enjoys developing with Meteor.js. He appreciates the importance of quality code as well as the need to meet scheduling demands.
David is now available for hire




Boston, United States



Preferred Environment

Git, Sublime Text, MacOS

The most amazing...

...project I've worked on was an infobox that appeared in Google Search results.


  • Blockchain Engineer

    2018 - PRESENT
    • Development of Parity sidechain networks.
    Technologies: Parity Polkadot, Ethereum
  • Software Engineer

    2018 - PRESENT
    Minuteman Capital
    • Developed an Ethereum ERC20 token contract as well as smart contracts for democratic voting by token holders.
    • Built the back-end server for monitoring Ethereum contracts and creating transactions.
    • Developed a Meteor/React web app (DApp) for holding tokens and voting on proposals.
    Technologies: React, Meteor, Web3.js, Truffle, Solidity, Blockchain, Ethereum
  • Software Engineer

    2017 - 2017
    Zen Labs
    • Built a Google Chrome extension for monitoring and blocking browsing activity.
    Technologies: Chrome Extensions, React
  • Software Engineer

    2017 - 2017
    • Updated and maintained an existing Meteor/React application.
    • Built an animated landing page using React/Next.js.
    Technologies: Next.js, Node.js, React, Meteor
  • Software Engineer

    2015 - 2016
    • Worked on the civics team to display primary election result information in Google Search.
    • Added text-to-speech responses to civic-related queries in Google Search.
    Technologies: Protocol Buffers, Java, Google Closure, JavaScript
  • Software Engineering Intern

    2014 - 2014
    • Developed a Chrome extension and a Google app engine back-end. Managed the transactional email system for the product and was responsible for maintaining it and ensuring its success.
    • Built and maintained a transactional email system for the product.
    Technologies: Google App Engine, Python, Backbone.js, JavaScript
  • Software Engineering Intern

    2013 - 2013
    Rakuten Loyalty
    • Developed multiple Node.js web services.
    • Built browser extensions for multiple browsers.
    Technologies: Node.js
  • Software Engineering Intern

    2012 - 2012
    Constant Contact
    • Maintained a large web application using the Java and Spring Framework.
    Technologies: Spring, Java


  • Piñata Overlay

    Pinata Overlay is a system consisting of a smart contract and IPFS oracles that allows for decentralized funding of IPFS storage.

    It was the winning project at ETH Berlin 2018.

  • Gas Guzzler

    A web app for comparing the amount of Ether consumed by various Solidity code blocks; it's useful for building efficient Ethereum smart contracts. The app uses web workers to compile and execute the Solidity code in the browser all without requiring a back-end server.


  • Languages

    JavaScript, Solidity, Python, SQL, Java, C#
  • Platforms

    Meteor, Ethereum, MacOS, Google App Engine, DigitalOcean, Docker, Blockchain
  • Other

    Chrome Extensions, Software Development, Front-end Development, DApps, Ethereum Smart Contracts, Protocol Buffers, Networks
  • Frameworks

    Redux, Bootstrap, Spring, Next.js, Truffle, Parity Polkadot, Express.js
  • Libraries/APIs

    Web3.js, jQuery, React, Node.js, Google Closure, Backbone.js
  • Tools

    IntelliJ IDEA, Sublime Text, Git, Docker Compose
  • Paradigms

    Test-driven Development (TDD)
  • Storage

    MySQL, MongoDB


  • Bachelor’s Degree in Computer Science
    2011 - 2015
    Worcester Polytechnic Institute - Worcester, MA, USA

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