Alexei Darmin, Developer in Toronto, ON, Canada
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Alexei Darmin

Verified Expert  in Engineering

Sagas Developer

Toronto, ON, Canada

Toptal member since August 7, 2020

Expertise
React.jsJavaScriptCSSReduxGitTypeScriptNode.jsMacOSSlack DevelopmentPHPjQuery
Bio

Alexei is an entrepreneurial front-end developer specializing in the React ecosystem of tools adept at building products that have global-scale reach. He has a proven history of using his exceptional product and business sense to lead initiatives that save businesses significant time and money.

Portfolio

GroupBy
Sagas, Redux, React, TypeScript, JavaScript
Archon Systems
Sagas, Redux, React, TypeScript, JavaScript
Cofounder
Redux, React, JavaScript

Experience

  • CSS - 7 years
  • HTML - 7 years
  • JavaScript - 7 years
  • Sagas - 4 years
  • React Redux - 4 years
  • Redux - 4 years
  • React - 4 years
  • TypeScript - 3 years

Availability

Part-time

Preferred Environment

Slack, MacOS

The most amazing...

...moment in my career so far was receiving a signed letter of intent by a New York-based hedge fund to acquire the company I cofounded.

Work Experience

Lead Front-end Developer

2019 - 2020
GroupBy
  • Led a team of three front-end developers working on multiple project features simultaneously at any given time.
  • Negotiated a raise to the salary floor of all junior developers in the org of 100+ people.
  • Built client-side support of locking on CRUD operations of resources.
  • Built a logging dashboard to audit user actions on resources.
Technologies: Sagas, Redux, React, TypeScript, JavaScript

Front-end Developer

2017 - 2019
Archon Systems
  • Led the development of five project features, coordinating with other teams as needed to deliver them.
  • Built app-wide support for large numbers to bypass JavaScript's 64-bit limitation on the floating-point data type.
  • Created a suite of input components (inputs, dropdowns, autocompletes, and modals).
  • Created an API-generated front end for a hackathon that greatly decreased a project's estimate, resulting in that project being fast-tracked to completion months ahead of schedule.
Technologies: Sagas, Redux, React, TypeScript, JavaScript

Software Developer

2016 - 2016
Cofounder
  • Led a team of students to build a financial dashboard that resulted in a signed letter of intent to be acquired by a New York-based hedge fund.
  • Developed an algorithm to continuously and efficiently query the Twitter API across thousands of topics optimized for the maximum data transfer and fewest calls made.
  • Integrated customizable dashboard tooling that allowed users to build their own dashboard.
Technologies: Redux, React, JavaScript

Software Developer

2015 - 2016
Drivein Median
  • Pitched, designed, and developed a CMS for a drive-in chain that received hundreds of Facebook likes/comments and continues to power their business four years later.
  • Automated away 200 hours of yearly administrative updates.
  • Reduced page load time from 20 seconds down to three seconds.
Technologies: PHP, CSS, HTML, JavaScript

Front-end Developer

2013 - 2016
Superscope Media Inc.
  • Built dozens of websites across diverse industries such as health, beauty, construction, and film.
  • Wrote a PHP script to generate HTML from parsed files reducing seasonal update times by 90%.
  • Served as the primary on-call support ensuring timely response to production bugs.
Technologies: jQuery, PHP, JavaScript, CSS, HTML

Experience

StockRender

A JS-based application that combined social sentiment and traditional financial data for investors to use for actionable trading signals. I contributed to both the back and front end. On the back end, I built a querying engine to continuously collect data from the Twitter API for a set of stocks trading on the NYSE. On the front end, I integrated support for a tool that allows users to build highly customized dashboards and sync up various tabs to track the same stock. This resulted in us receiving a signed letter of intent to be acquired by a New York-based hedge fund.

Education

2011 - 2016

Bachelor of Science Degree (Honors) in Computer Science

University of Toronto - Toronto, Ontario, Canada

Skills

Libraries/APIs

React, React Redux, Node.js, jQuery

Tools

Git, Slack

Languages

JavaScript, HTML, CSS, TypeScript, PHP

Frameworks

Redux

Platforms

MacOS

Other

Sagas

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