toptal.com
Contact us: +1.888.867.7001
Neil Zhao, Software Developer in Waterloo, ON, Canada
Neil Zhao

Software Developer in Waterloo, ON, Canada

Member since March 4, 2019
Neil is a full-stack SDE with both front-end and back-end skills. He’s adept with an assortment of languages such as Ruby, JS/TS, Python, Scala, and SQL and tools like Git, AWS, Rails, Node.js, Terraform, and Elasticsearch. All in all, Neil would characterize himself as a robust functional programmer with proficiency in algorithm optimization. He also possesses reliable concurrency and asynchronous skills with proper utilities under modern theories.
Neil is now available for hire
Hire Neil

Portfolio

  • Toptal Client
    Amazon Web Services (AWS), Sidekiq, Git, Ruby on Rails 5, AWS, Enzyme, Jest...
  • Miovision
    Amazon Web Services (AWS), Sidekiq, RxJS, Git, RSpec, TypeScript, Ruby, MySQL...
  • Meri.co
    Git, TypeScript, Infura, Jest, Ganache CLI, Web3.js, Node.js, Solidity

Experience

Location

Waterloo, ON, Canada

Availability

Part-time

Preferred Environment

Amazon Web Services (AWS), AWS, Slack, Git, Ubuntu, MacOS, JetBrains

The most amazing...

...web application I've created has a modern, seamless, and data-intensive design under a highly stable architecture for the front end, back end, and cloud hosts.

Employment

  • Senior Software Engineer

    2019 - 2022
    Toptal Client
    • Constructed back-end services using RoR 5 and tested with RSpec and Capybara.
    • Developed microservices through Node.js on TypeScript with Jest and Enzyme for unit and E2E tests.
    • Created a complex web application and a customized UI system on React, Redux, and other commonly used libraries.
    • Built a scheduler for back-end services with job queues and monitor page.
    Technologies: Amazon Web Services (AWS), Sidekiq, Git, Ruby on Rails 5, AWS, Enzyme, Jest, Capybara, RSpec, Heroku, Shopify, jQuery, React, Ruby on Rails (RoR), Ruby

  • Software Developer

    2018 - 2020
    Miovision
    • Developed a data-intensive web application using RoR 5 with well-known gems.
    • Built a single-page web app through React and related development tools.
    • Combined Elasticsearch and Node.js to seamlessly pipe data streaming.
    • Applied Terraform to automate back-end infrastructures on AWS.
    Technologies: Amazon Web Services (AWS), Sidekiq, RxJS, Git, RSpec, TypeScript, Ruby, MySQL, Elasticsearch, Terraform, AWS, Redux, React, Node.js, Ruby on Rails 5

  • Blockchain Developer (Smart Contract)

    2018 - 2019
    Meri.co
    • Developed a smart contract on Ethereum to implement a decentralized permission system.
    • Combined Web3.js and Node.js to encapsulate a module to interact with a smart contract.
    • Created unit tests under Node.js for smart contracts through Web3.js, Ganache CLI, and Jest.
    • Integrated APIs from Infura to create a testing workflow of smart contracts on the Rinkeby Network.
    Technologies: Git, TypeScript, Infura, Jest, Ganache CLI, Web3.js, Node.js, Solidity

  • Software Developer

    2017 - 2018
    Toptal Client
    • Developed multiple services on Ruby on Rails 5 and integrated them with Salesforce and AWS.
    • Created a back-end service for admin using Scala, Cats, and Play 2 framework.
    • Implemented unit and E2E tests for Rails and Scala services to raise testing coverage.
    • Worked on Heroku pipeline to deploy a few services under the existing CI/CD process.
    Technologies: Amazon Web Services (AWS), Sidekiq, Redux, Git, RSpec, Ruby on Rails 5, AWS, Heroku, Salesforce, React, Node.js, Ruby on Rails (RoR), Ruby

Experience

  • High-speed Message and Email Automation System

    Designed and created a message and email automation system for the marketing team to develop agents' work processes for leads and opportunities.

    Features:
    • Message and email automation and scheduler.
    • High-speed SMS pipeline for about 2,000,000 outbound messages per day.
    • Salesforce, Eloqua, and other marketing tools integration.

Skills

  • Languages

    Python, TypeScript, Ruby, SOQL, Scala

  • Frameworks

    Ruby on Rails 5, Jest, Django, Flask, Play 2, Redux, Capybara

  • Libraries/APIs

    Salesforce API, Node.js, React, Web3.js

  • Tools

    RSpec, Git, Terraform

  • Paradigms

    Functional Programming, Object-oriented Programming (OOP)

  • Platforms

    Amazon Web Services (AWS), AWS Lambda, Salesforce

  • Storage

    Elasticsearch, PostgreSQL, Redis

  • Other

    Enzyme

Education

  • Bachelor's Degree with Honors in Computer Science
    2013 - 2017
    University of Waterloo - Waterloo, Ontario, Canada

Certifications

  • Google Cloud Certified — Associate Cloud Engineer
    DECEMBER 2019 - DECEMBER 2021
    Google Cloud Platform
  • AWS Certified Developer — Associate (DVA)
    AUGUST 2017 - AUGUST 2020
    AWS | Amazon Web Services

To view more profiles

Join Toptal
Share it with others
Hire the top 3% of freelance developers TM