Job Type: Permanent
Location: Toronto, Ontario
Posted: March 23, 2026
Category: Computer Occupations
Application Deadline: May 02, 2026

Role Description

Senior React Developer

What you will do:

Design and build complex React applications

Set technical direction for front-end development

Optimize performance and user experience

Mentor other developers

Turn designs into production-ready code

Master of front-end development.

You started with JavaScript before frameworks took over

React isn't just your tool—it's your craft.

You think in components and architecture.

When you look at a design, you're already mapping out the component tree, considering render cycles, and planning for performance.

You know when to memorize, when to lazy load, and when to just keep it simple.

You have an eye for design that borders on obsessive.

A 1px misalignment bothers you.

You care about typography, spacing, and animations that feel right.

You translate design files into pixel-perf...

Interested in this role?

Click the button below to start your application for Senior React Developer - enough experience to know jQuery and vanilla JavaScript, and understand why React was such a breakthrough - for our Financial Services client. at S.i. Systems.

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