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John Simard

Fullstack Engineer

Ottawa, ON, Canada


Lead Blockchain Developer


Contract5/2021 - 10/2022
  1. Devised an Ethereum smart contract and website that allowed over 3.9K developers to sell software licenses using 17 embeddable widgets. Created a wide modular trading engine to auto-rebalance RW's $45M portfolio utilizing private and public market makers on the Ethereum network. Conceptualized software licenses on the blockchain to discourage piracy by enabling a secondary peer-to-peer marketplace, which allowed 8.6K developers to accept cryptocurrencies. Improved gas savings from token transfers by 85% using encoding design inspired by the Dexlabs Protocol on Solana Blockchain. Planned smart contract and managed whole development for NFT marketplaces on • Solana using Rust.
React Front End Developer

Gecko Dynamics

Full time10/2017 - 10/2018
  1. Revamped Growthsi homepage using HTML, CSS, and JavaScript; the site records 10M weekly views. Overhauled the company's checkout page, which processes $20M daily revenue, by upgrading its payment code. Developed an altered clustering algorithm capable of loading and generating 10B observable location data points. Engineered a client's items comparison page using React.js, CSS, and HTML for the launch of 27 newly released products.
Senior Front End Developer


Full time2/2018 - 9/2019
  1. Added an average of 25% increase in annual company revenue with an average of 15 clients per month. Implemented 20+ front-end Web Interface for engineers and test-ops to control and monitor the onboard system. Analyzed and optimized performance bottlenecks in 8+ existing backend systems, such as database queries and storage solutions, to increase responsiveness. Led transition from Firebase to AWS, saving company $3,700+ monthly and increasing load speeds by an average of 38%. Collaborated on Complexity Score tool, which removed process bottlenecks by assigning scores to cost, time, and compliance issues, increasing efficiency by 72%.
Senior Full Stack Developer

Gearheart Inc.

Full time9/2019 - 5/2021
  1. Increased the 180-character display name limit in a popular app, which impacted 2M users in three days. Analyzed code to enable 15 keyboard shortcuts for two mobile apps using Objective-C and Swift. Designed and developed 30+ front-end and back-end applications utilizing React.js, Node.js, and TypeScript Reduced the time to diagnose customers server issues from 72 hours to 45 minutes, slashing $200K yearly in support costs.


University of Waterloo

Computer Science

Bachelor's DegreeClass of 2016



Full Stack Developer
project preview

PolkaWar is a blockchain based NFT gaming platform and marketplace. Inspired by the recent crypto NFT and gaming narratives.


Smart Contract Developer
project preview

Treedefi is the first ESG crypto space project. Our goal is to bring wealth to our users while having positive impact on our planet. TreeDefi is a defi protocol operating on the BSC (Binance Smart Chain) focused on Yield Farming.




Senior-level8+ years

Hourly rate


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