Frontend Software Engineer - SE3

eBay; Toronto; On-site; CAD 80,000 - 120,000; Full time

Job summary

A leading ecommerce platform is seeking a Frontend Engineer in Toronto, Canada. The role involves building and maintaining high-impact web applications using modern technologies like TypeScript and React. The ideal candidate has over 5 years of experience in frontend engineering, strong mentoring skills, and is ready to contribute to a data-driven agile team. Competitive salary and flexibility offered.

Qualifications

• 5+ years of frontend engineering experience required.
• Experience in building scalable web applications.
• Strong communication and collaboration skills.

Responsibilities

• Collaborate on end-to-end product development.
• Build and maintain scalable web applications.
• Lead technical discussions and architecture decisions.
• Mentor junior engineers and elevate engineering standards.
• Participate in engineering support for global platforms.

Skills

TypeScript

React

Node.js

HTML

CSS (LESS/SASS)

JavaScript

Cross-browser UI design

Security testing

Load and performance testing

Mentoring

Education

Bachelor's degree in Computer Science or related field

Tools

CI/CD pipelines

Webpack

Vite

Git

Job description

At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet.

Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.

About the team and the role:

We are the Product, Item and Transactions Experience Team within eBay’s Buyer organization. We own core buyer-facing surfaces such as Item Details Pages, Product Pages, Transaction Flows such as Auctions and Best Offer, and SEO-optimized landing experiences. These surfaces drive billions in revenue through hundreds of millions of page views across devices and browsers every day.

This role involves working on highly visible, high-impact systems where performance, accuracy, scalability, and availability are critical. You’ll be joining a data-driven agile team, contributing to real-time systems like winning bids and ensuring our buyer experience is both reliable and delightful across a global customer base.

As a frontend engineer on this team, you’ll collaborate closely with architects, product managers, designers, and fellow engineers to build scalable and maintainable frontend applications. You’ll have ownership over feature development, from concept to launch, and play an active role in improving the technology and engineering practices that power eBay.

What you will accomplish:

• Collaborate on end-to-end product development, from design to release and support

• Build and maintain scalable and performant web applications serving millions of users globally

• Lead technical discussions and architecture decisions in a cross-functional environment

• Mentor junior engineers and elevating engineering standards across teams

• Apply modern web technologies to deliver innovative solutions with measurable business impact

• Take part in engineering support, release, and on-call responsibilities for a 24/7 global platform

What you will bring:

• Bachelor's degree in Computer Science, or a related field

• 5+ years of frontend engineering experience (or 4+ with Master’s), with strong skills in TypeScript, React, Node.js, HTML, CSS (LESS/SASS), and JavaScript (Marko is a nice-to-have)

• Solid experience with security, load and performance testing, accessibility, and cross-browser/cross-platform UI design

• Proven track record in system design, code reviews, and building scalable, reliable web applications

• Familiarity with CI/CD pipelines, Webpack or Vite, and Git

• Strong communication and collaboration skills, with experience leading or mentoring across teams

• Ability to plan, implement, and support frontend systems in fast-paced, production environments

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